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"electroplated" Antonyms

112 Sentences With "electroplated"

How to use electroplated in a sentence? Find typical usage patterns (collocations)/phrases/context for "electroplated" and check conjugation/comparative form for "electroplated". Mastering all the usages of "electroplated" from sentence examples published by news publications.

The fifth album from London's Darren Cunningham, AZD is an electroplated monument to the idea of "self," both real and imagined.
Related copper etchings appear in the show, and Barney has electroplated them over varying times, encrusting them with weird metal nodules.
Related copper etchings appear in the exhibition, and Barney has electroplated them over varying times, encrusting them with weird metal nodules.
But the camera gimbal is getting a small bump in build quality — it's now made of magnesium, covered in anti-fingerprint coating, and electroplated.
It will be inspected for errors by the engineers, musicians, recording artists, and what have you, and if it passes, then it gets electroplated.
The Phantom 4 Pro Obsidian is basically entirely a color change, though it does have a new magnesium, electroplated gimbal that's supposed to prevent fingerprints.
But it's the electroplated etchings, sometimes daintily figurative and sometimes scarred into abstraction, that most fully express the aims of "Redoubt," reflecting an artist seeking newer, freer shores.
The body, which even at its thinnest point feels quite rigid, is made of an electroplated polymer (more accurately, it's plastic, clad in metal, clad in a plastic finish).
During the heyday of vinyl, mastering engineers used hulking Neumann lathes to cut the lacquers that would then be electroplated to make stampers, the molds used to press records.
During the heyday of vinyl, mastering engineers used hulking Neumann lathes to cut the lacquers that would then be electroplated to make stampers, the molds used to press records.
His freer gaze on American exceptionalism and environmental degradation was also channeled into electroplated etchings and ambitious multimetal sculptures, now at the UCCA Center for Contemporary Art in Beijing.
What almost always happens is that, in order to churn out records faster (and not degrade the original metal plate), the father plate is again electroplated with metal, and those plates are then popped off, too.
Inside the Amazon Kindle Oasis is a small motherboard (center) which houses the CPU, memory and storage,  the electroplated chassis (left), the screen cover, right, a battery (top center) and an electronic Ink display (not shown).
The Redoubt exhibition, which will remain on view at the Yale University Art Gallery until June 16, encompasses a two-hour film set in Idaho's Sawtooth Mountains, huge detailed brass and copper sculptures of logs, and 40 engraved and electroplated copper plates.
For example, some of her stone settings have six claws rather than the traditional four ("to be different," she said) and she has coated metal in unusual colors, like the blue-green electroplated gold used in her Atlas brooch to match its Paraiba tourmaline.
In one corner of the room, a robotic arm with an electroplated hand (based on a classical statue of Calliope, the muse of poetry) taps out messages on an imaginary phone, transmitting the words "ololyga, ololyzo, eleleu, elelizo, alala, alalazo, io" to a vertically oriented LCD screen mounted on a wall near the opposing corner — the "read out" of the piece's title.
In some cases, it is desirable to co-deposit two or more metals resulting in an electroplated alloy deposit. Depending on the alloy system, an electroplated alloy may be solid solution strengthened or precipitation hardened by heat treatment to improve the plating's physical and chemical properties. Nickel-Cobalt is a common electroplated alloy.
Zamak can be electroplated, wet painted, and chromate conversion coated well.
Rhodium is the most commonly electroplated of the platinum metals because of the hardness and lustre of the electrodeposit.
Unannealed electrolytic foils have relatively smaller grain sizes, while the grain sizes of rolled or annealed electroplated foils are larger.
Although they're as strong as paint finishes, they do not hold up as well as electroplated finishes. Paint finishes are for both steel and aluminum furniture, although it easily scratches and rusts. Brass plating, which is an electroplated finish, is applied in a bath and is durable. Solid brass is both pricey and rare.
James Dixon & Sons egg cup and toast rack designed by Christopher Dresser J Dixon & Sons (James Dixon & Sons), founded 1806 in Sheffield, was one of the major British manufacturers of the Industrial Revolution. They were manufacturers of pewterware, electroplated Britannia metal, silverware and electroplated nickel silver. Their products included hundreds of items for use in the kitchen (e.g. bowls, cutting-tools) and the dining room (e.g.
The results startled modern archaeologists, because at first the pieces resemble electroplated articles. Keum-boo is a special Korean technique of silver-gilding, using depletion gilding.
Much modern gold (and other metal) lace is now manufactured in India. Modern Indian "pure gold lace" is technically made from silver that has been electroplated with gold.
The newer diamond based systems like Vacubrasion utilize a fine diamond dust that is essentially electroplated onto a stainless steel round tip that comes in contact with the skin.
In 1836 the company was sold to John Vickers's nephew Ebenezer Stacey (the son of Hannah Vickers and John Stacey). After the development of electroplating with silver in 1846, Britannia metal was widely used as the base metal for silver-plated household goods and cutlery. The abbreviation EPBM on such items denotes "electroplated Britannia metal". Britannia metal was generally used as a cheaper alternative to electroplated nickel silver (EPNS) which is more durable.
Most of the tin-plated steel made today is then further electroplated with a very thin layer of chromium to prevent dulling of the surface from oxidation of the tin.
Blades using diamonds embedded in a metal coating, typically of nickel electroplated onto a steel blade base, can be made to be very thin—blades can be tens of micrometres thick, for use in precise cuttings.
Others have focused on the development of oxygen-barrier coatings to prevent whisker formation. Airborne zinc whiskers have been responsible for increased system failure rates in computer server rooms. Zinc whiskers grow from galvanized (electroplated) metal surfaces at a rate of up to a millimeter per year with a diameter of a few micrometres. Whiskers can form on the underside of zinc electroplated floor tiles on raised floors due to stresses applied when walking over them; these whiskers can then become airborne within the floor plenum when the tiles are disturbed, usually during maintenance.
The top of the cloisonné wire is polished so it is flush with the enamel and has a bright lustre. Some cloisonné wire is electroplated with a thin film of gold, which will not tarnish as silver does.
These were made by etching depressions into an N-type germanium base from both sides with jets of indium sulfate until it was a few ten-thousandths of an inch thick. Indium electroplated into the depressions formed the collector and emitter.
A typical lag screw can range in diameter from 4 to 20 mm or #10 to 1.25 in (4.83 to 31.75 mm), and lengths from 16 to 200 mm or or longer, with the coarse threads of a wood-screw or sheet-metal-screw threadform (but larger). The materials are usually carbon steel substrate with a coating of zinc galvanization (for corrosion resistance). The zinc coating may be bright (electroplated), yellow (electroplated), or dull gray hot-dip galvanized. Lag screws are used to lag together lumber framing, to lag machinery feet to wood floors, and for other heavy carpentry applications.
Protecting the base of a lead-core bullet from burning powder gas may prevent molten lead from being released as a fine spray in turbulent gas leaving the muzzle of a firearm. Electrolytic deposition can create very thin jackets, while jackets applied by swaging must be thick enough to avoid being torn during the swaging process. Uniformly electroplated jackets may produce more accurate bullets than jacket and core materials deformed during swaging. Thinner electroplated jackets may not be as strong as conventional swaged jackets of similar metal, and may not prevent leading at higher bullet velocities.
Thermal spraying techniques are another popular finishing option, and often have better high temperature properties than electroplated coatings due to the thicker coating. The four main thermal spray processes include electric wire arc spray, flame (oxy acetylene combustion) spray, plasma spray and high velocity oxy fuel (HVOF) spray.
After welding, the decking is coated with either baked-on enamel or baked-on powder coating. This requires a cleaning process, heat drying, cooling, paint dip, and then final curing. The decking can instead be electroplated with zinc. Most manufacturers use the same equipment to produce other products.
The weight of the coin was originally specified as 108 grains, equivalent to 6.998 grams. The coin's diameter is 26.5mm. When introduced, loonie coins were made of aureate, a bronze-electroplated nickel combination. Beginning in 2007, some loonie blanks also began to be produced with a cyanide-free brass plating process.
As the hydride decomposes, the plated surface cracks. The cracking can be controlled and there may be up to 40 cracks per millimeter. Substances on the plating surface, mostly chromium sesquioxide, are sucked into the cracks as they form. The cracks heal over and newer electroplated layers will crack differently.
However, the coating color can also be changed with dyes, so color is not a complete indicator of the process used. ISO 4520 specifies chromate conversion coatings on electroplated zinc and cadmium coatings. ASTM B633 Type II and III specify zinc plating plus chromate conversion on iron and steel parts.
There are two-sided plates with each side coated with a different grit. The highest quality diamond sharpeners use monocrystalline diamonds, single structures which will not break, giving them an excellent lifespan. These diamonds are bonded onto a precision ground surface, set in nickel, and electroplated. This process locks the diamonds in place.wonkeedonkeetrend.co.
Sodium tellurite improves the corrosion resistance of electroplated nickel layers. Solutions of sodium tellurite are used for black or blue-black coatings on iron, steel, aluminum, and copper. In microbiology, sodium tellurite can be added to the growth medium to isolate bacteria with an inherent physiological resistance to its toxicity.Borsetti, Francesca; Toninello, Antonio; Zannoni, Davide (2003).
The strings themselves would be translated into intricate rings or earrings, in beautiful electroplated filigree jewelry. He created many miniature figures, creating dozens of little creatures. As his skills improved, he changed from using clay to metal. The size of the sculptures also grew in size, growing the miniatures into 3 ft to 9 ft sculptures.
In 2015, researchers announced a solid-state 3-D battery anode using the electroplated copper antimonide (copper foam). The anode is then layered with a solid polymer electrolyte that provides a physical barrier across which ions (but not electrons) can travel. The cathode is an inky slurry. The volumetric energy density was up to twice as much energy conventional batteries.
When selecting metal furniture, consider coat and finish, ensuring the surface is either powder coated or electroplated. Also, consider your climate. For example, if you live in a rainy area, you will want furniture with heavy waterproofing and light enough to carry indoors. For hot climates, consider that aluminum retains heat, so you can not use it until it cools down.
Tin presents a smooth crystalline structure and is therefore relatively non-stick in cooking applications. As a relatively soft metal abrasive cleansers or cleaning techniques can accelerate wear of tin linings. Wood, silicone or plastic implements are to preferred over harder stainless steel types. For a period following the Second World War, pure nickel was electroplated as a lining to copper cookware.
At the negative electrode (anode), zinc is electroplated and stripped on the carbon polymer electrodes during charge and discharge, respectively. :Zn2+(aq) \+ 2e− Zn(s) ::(−0.76 V vs. SHE) At the positive electrode (cathode) (titanium based materials or carbon felt electrode), Ce(III) oxidation and Ce(IV) reduction take place during charge and discharge, respectively. :Ce4+(aq) − e− Ce3+(aq) ::(ca.
The weight capacity of a 42x46 shelf ranges from 2,000 to 3,500 pounds, while the decking itself weighs from 24 to 30 pounds. The finish on the steel may either be painted or sprayed on, or be electroplated with zinc. Electroplating is more common with Chinese manufacturers while painting or spraying is more common with American manufacturers.Wire Decking from China, Inv.
For badges these flats may be further shaped to a curved surface by another die. This type of EDM is usually performed submerged in an oil-based dielectric. The finished object may be further refined by hard (glass) or soft (paint) enameling, or electroplated with pure gold or nickel. Softer materials such as silver may be hand engraved as a refinement.
Back at Josephine's parents house, Alan, Josephine and her parents inspect the wedding presents. The parents look down upon the electroplated silver tray, as an inferior gift. However, Josephine tells Alan she wants to break off the engagement and marry David Hewer... but he does not know yet. Josephine makes it clear that she must marry the person who needs her most i.e.
A more economical alternative was made available to the handloader in the 1980s, the copper- plated bullet.Ranier Ballistics has been making plated bullets since 1983. Copper-plated bullets are lead bullets that are electroplated with a copper jacket. While thinner than a swaged bullet jacket, the plated jacket is far thicker than normal electroplate, and provides significant structural integrity to the bullet.
The Elkingtons purchased and patented Wright's process (British Patent 8447 : Improvements in Coating, Covering, or Plating certain Metals), subsequently acquiring the rights of other processes and improvements. In 1843 Elkingtons acquired the rights to Werner von Siemens's first invention, an improvement to the gold and silver plating process.Schwartz & McGuinness Einstein for Beginners Icon Books 1992 The Elkingtons opened a new electroplating works in Newhall Street, in the Jewellery Quarter, Birmingham in 1841, and the following year Josiah Mason, a pen manufacturer, joined the firm and encouraged the Elkingtons to diversify their output, adding more affordable electroplated jewellery and cutlery to the large pieces the company had been producing. Electroplated wares became very successful in the Victorian market and by 1880 the company employed 1,000 people at the Newhall Street site and had a further six factories.
When a substantial number of copies of an electrical transcription were required, as for the distribution of a syndicated program, they were produced by the same process used to make ordinary records. A master recording was cut, then electroplated to produce a stamper from which pressings in vinyl (or, in the case of transcription discs pressed before about 1935, shellac) were molded in a record press.
M.M. Kavanaugh, the chairman of Bauhinia Shire, presented Mrs Wheeler with an electroplated tea and coffee service for her untiring work for the soldiers of their district. Jack Fryer formed part of the honour guard at the unveiling.Unveiling the War Memorial fountain in Springsure State School, 6 December 1919On 19 October 1920, Annie Wheeler was awarded an O.B.E. for "comforts and entertainments for the troops".
The record's cover is aluminum and electroplated upon it is an ultra-pure sample of the isotope uranium-238. Uranium-238 has a half-life of 4.468 billion years. It is possible (e.g. via mass spectrometry) that a civilization that encounters the record will be able to use the ratio of remaining uranium to the other elements to determine the age of the record.
The coin was originally minted in bronze (composition 97% copper, 2.5% zinc, 0.5% tin) between 1971 and September 1992. However, increasing world metal prices necessitated a change of composition. Since 1992, the coins are minted in steel and electroplated in copper, making them magnetic. Rising world prices for copper had caused the metal value of the pre-1992 copper 1p coin to exceed 1p.
Accessed 8/28/09 gold electroplated pennies and, in one instance, a decoratively painted violin.Art of Note website . Accessed 8/28/09 In 2006 the artists began to produce functional tables of cast and blown glass supported by a wrought iron armature. The tops of the tables, flat discs cast with the impressions of vines and leaves, were inspired by the artists' trip to Costa Rica.
Steel was always used for more utilitarian knives, and pewter was used for some cheaper items, especially spoons. From the nineteenth century, electroplated nickel silver (EPNS) was used as a cheaper substitute for sterling silver. In 1913, the British metallurgist Harry Brearley discovered stainless steel by chance, bringing affordable cutlery to the masses. This metal has come to be the predominant one used in cutlery.
As of 2009 Guardian was operating on five continents with more than 18,000 employees. The approximately $5 billion conglomerate is an industry leader in float glass, fabricated glass products, fiberglass insulation, and building materials for commercial, residential and automotive markets.Beene, Ryan. SRG Global was established in 2009 after Guardian acquired Siegel-Robert Automotive, a manufacturer of electroplated plastic parts for the North American automotive industry.
Molybdenum ditelluride can be formed by electrodeposition from a solution of molybdic acid (H2MoO4) and tellurium dioxide (TeO2). The product can be electroplated on stainless steel or indium tin oxide. Tellurization of thin Mo film at 650 °C by chemical vapor deposition (CVD) leads to the hexagonal, semiconducting α-form (2H-MoTe2) while using MoO3 film produces the monoclinic, semimetallic β-form (1T'-MoTe2) at the same temperature of 650 °C.
Duty cycle is the effective portion of time in certain electroplating period with the current or potential applied. The effective current/potential is calculated by multiplying the duty cycle and peak value of current or potential. Pulse electroplating could help to improve the quality of electroplated film and release the internal stress built up during fast deposition. Combination of the short duty cycle and high frequency could decrease the surface cracks.
Rhodium finds use in jewelry and for decorations. It is electroplated on white gold and platinum to give it a reflective white surface at time of sale, after which the thin layer wears away with use. This is known as rhodium flashing in the jewelry business. It may also be used in coating sterling silver to protect against tarnish (silver sulfide, Ag2S, produced from atmospheric hydrogen sulfide, H2S).
Philco used a patented process of applying two tiny electrochemical jet streams of liquid indium sulfate (electrolyte solution) on opposite sides of a thin strip of N-type germanium base material. This process would etch away and form circular well depressions on each side of the N-type germanium base material, until the germanium base material was ultra thin and having a thickness of approximately a few ten-thousandths of an inch. After the etching process was finished, the polarity applied to the electrolyte was reversed, resulting in metallic indium being electroplated into these etched circular well depressions, forming the transistor's emitter and collector electrodes.Wall Street Journal, Dec 04 1953, page 4, Article "Philco Claims Its Transistor Outperforms Others Now In Use"Electronics magazine, January 1954, Article "Electroplated Transistors Announced" The Philco surface-barrier transistor was the world's first high-frequency junction transistor, which was capable of obtaining frequencies up to 60 MHz.
Insulating washers are used in the screw assemblies to ensure that each main layer is electrically isolated. This helps eliminate radio frequency radiation, which would degrade SQUID performance. Electrical continuity of the aluminium is also maintained by aluminium overlay strips to ensure AC eddy current shielding, which is important at frequencies greater than 1 Hz. The junctions of the inner layer are often electroplated with silver or gold to improve conductivity of the aluminium layers.
The solution is carefully buffered to maintain its pH, and organic contaminants must be kept below one part in five million for good results. The bath is heated to approximately 50 °C. The glass master is rotated in the electroforming tank while a pump circulates the electroforming solution over the surface of the master. As the electroforming progresses, nickel is not electroplated onto the surface of the glass master, since that would preclude separation.
Accessed 28 June 2013. The hanger-bar assembly was then electroplated with copper to a thickness of 1.3 millimeters (“mm”) (later increased to 2.5 mm and then 3.0 mm to improve the corrosion resistance of the hanger bar) to approximately 15 mm down onto the blade, which provided sufficient electrical conductivity and gave the assembly some corrosion resistance. Electrodeposited copper adheres quite firmly to the stainless steel so that it does not detach during refining.
The highly corrosive gas uranium hexafluoride would have to be used, as no substitute could be found, and the motors and pumps would have to be vacuum tight and enclosed in inert gas. The biggest problem was the design of the barrier, which would have to be strong, porous and resistant to corrosion by uranium hexafluoride. The best choice for this seemed to be nickel. Edward Adler and Edward Norris created a mesh barrier from electroplated nickel.
However, the plants and other subjects that could be successfully printed in this way were few. Ferns were one of the few plants with a form that could be replicated, the shape of the fronds being largely two-dimensional. In this work the ferns, a plant highly suited to the process, were impressed upon soft lead plates. These were electroplated to become the printing plate, the details of the fronds and stem were hand-coloured at this stage.
A well hole passing through the centre of the first and second floors helped conduct air and light through the building. The upper floors were accessed by wooden stairs as well as the electric lift. The building was completed in time for the 1913 Christmas trade, with the shop windows carrying brilliant displays of electroplated Birmingham silverware. The new building marked the development of Michael Boland's business into one of the first modern department stores in North Queensland.
The accompanying music, "The Tradition of the Games", was composed by Basil Poledouris. Muhammad Ali lit the Olympic cauldron and later received a replacement gold medal for his boxing victory in the 1960 Summer Olympics. For the torch ceremony, more than 10,000 Olympic torches were manufactured by the American Meter Company and electroplated by Erie Plating Company. Each torch weighed about and was made primarily of aluminum, with a Georgia pecan wood handle and gold ornamentation.
For the Lord of the Rings film trilogy, realistic looking PVC chainmail was made, not just for the lead actors, but also for the hundreds of extras that appeared throughout the films. PVC pipe was cut into rings, assembled by hand into a semblance of armor, and then electroplated. A total of 82.9 million links were manufactured from 7 miles of PVC pipe. The workshop now has a division, Weta Tenzan Chain Maille, making chainmail for film work.
The work function needs to match the surrounding materials. For p-MOSFETs, the ruthenium work function is the best materials property match with surrounding materials such as HfO2, HfSiOx, HfNOx, and HfSiNOx, to achieve the desired electrical properties. The third large-scale application for ruthenium films is as a combination adhesion promoter and electroplating seed layer between TaN and Cu in the copper dual damascene process. Copper can be directly electroplated onto ruthenium, in contrast to tantalum nitride.
Each high-density polyethylene (HDPE) cell stack has up to 60 bipolar, plastic electrodes between a pair of anode and cathode end blocks. The zinc–bromine battery can be regarded as an electroplating machine. During charging, zinc is electroplated onto conductive electrodes, while at the same time bromine is formed. On discharge, the reverse process occurs: the metallic zinc plated on the negative electrodes dissolves in the electrolyte and is available to be plated again at the next charge cycle.
Silver overlay is an electroplated coating of silver on a non-conductive surface such as porcelain or glass. Most techniques used to create silver overlay involve the use of special flux which contains silver and turpentine oil. This is then painted on the glass ornament as a design. After the painting is complete, the entire ornament is fired under relatively low heat, it is then cleaned after being quenched and cooled, then it is placed in a solution of silver.
Owing to its low impedance, low junction potential and weak polarization, silver electrodes are standard transducers of the ionic into electric current that occurs through a reversible redox reaction at the electrode surface. The vibrating probe was introduced in biological studies in the 1970s. The voltage-sensitive probe is electroplated with platinum to form a capacitive black tip ball with large surface area. When vibrating in an artificial or natural DC voltage gradient, the capacitive ball oscillates in a sinusoidal AC output.
Rolled and annealed foils are the most common choice, however thinner films which are electroplated are becoming increasingly popular. In certain non standard cases, the circuit manufacturer may be called upon to create a specialty laminate by using a specified alternative metal foil, such as a special copper alloy or other metal foil in the construction. This is accomplished by laminating the foil to a base film with or without an adhesive depending on the nature and properties of the base film.
Additionally, the problem of inner groove distortion, which plagued lateral cuts, could be avoided with the vertical cut system. Wax masters were made by flowing heated wax over a hot metal disc thus avoiding the microscopic irregularities of cast blocks of wax and the necessity of planing and polishing. Vinyl pressings were made with stampers from master cuts that were electroplated in vacuo by means of gold sputtering. Audio response was claimed out to 8,000 Hz, later 13,000 Hz, using light weight pickups employing jeweled styli.
These holes are called blind vias when they connect an internal copper layer to an outer layer, or buried vias when they connect two or more internal copper layers and no outer layers. Laser drilling machines can drill thousands of holes per second and can use either UV or CO2 lasers. The hole walls for boards with two or more layers can be made conductive and then electroplated with copper to form plated-through holes. These holes electrically connect the conducting layers of the PCB.
In this rechargeable battery, both negative zinc and positive cerium electrolytes are circulated though an electrochemical flow reactor during the operation and stored in two separated reservoirs. Negative and positive electrolyte compartments in the electrochemical reactor are separated by a cation-exchange membrane, usually Nafion (DuPont). The Ce(III)/Ce(IV) and Zn(II)/Zn redox reactions take place at the positive and negative electrodes, respectively. Since zinc is electroplated during charge at the negative electrode this system is classified as a hybrid flow battery.
Saltwater fly reels are normally large-arbor designs, having a much larger diameter spool than most freshwater fly reels. These large arbor reels provide an improved retrieve ratio and considerably more line and backing capacity, optimizing the design for the long runs of powerful ocean game fish. To prevent corrosion, saltwater fly reels often use aerospace aluminum frames and spools, electroplated and/or stainless steel components, with sealed and waterproof bearing and drive mechanisms. ;Fly reel operation Fly reels are normally manual, single-action designs.
In 2016, the Academy returned to bronze as the core metal of the statuettes, handing manufacturing duties to Walden, New York-based Polich Tallix Fine Art Foundry. While based on a digital scan of an original 1929 Oscar, the statuettes retain their modern-era dimensions and black pedestal. Cast in liquid bronze from 3D-printed ceramic molds and polished, they are then electroplated in 24-karat gold by Brooklyn, New York–based Epner Technology. The time required to produce 50 such statuettes is roughly three months.
BB has an electroplated copper jacket to prevent the core from rusting. Total metal jacket (or full metal case) bullets are made by electroplating a thin jacket of ductile metal (usually copper) over a core of different metal requiring protection from abrasion or corrosion. Similar full metal jacket bullets mechanically swage a thin sheet of metal over the core. The swaging process leaves an opening exposing the core on the base of the bullet, while electroplating deposits a jacket over the entire bullet surface.
Electrolysis is usually done in bulk using hundreds of sheets of metal connected to an electric power source. In the production of copper, these pure sheets of copper are used as starter material for the cathodes, and are then lowered into a solution such as copper sulphate with the large anodes that are cast from impure (97% pure) copper. The copper from the anodes are electroplated on to the cathodes, while any impurities settle to the bottom of the tank. This forms cathodes of 99.999% pure copper.
View of Culler Hall's Foucault Pendulum From Ground Floor Culler Hall showcases a Foucault pendulum similar to those in the United Nations’ building and the Smithsonian Institution. The solid iron ball (with an electroplated gold surface) is known as the bob of the pendulum. Hanging at the end of the rigid, 43 foot aircraft control cable, the ball is ten inches in diameter and weighs a shocking 160 pounds. The sunburst pattern depicted on the floor helps one notice the minute counter-clockwise rotation of the pendulum as the earth rotates daily.
Copper plating material surfaces presents a number of advantages to substrates. The primary reason for copper plating is to improve the conductivity of a substrate, copper is highly conductive - only Silver is a more effective metal at conducting electricity. As a soft metal, copper is also malleable and so has the inherent flexibility to maintain adhesion even if a substrate is subject to being bent and manipulated post plating. When electroplated, copper provides a smooth and even coverage which therefore provides an excellent base for additional coating or plating processes.
The two processing methods used to produce a double-sided PWB with plated-through holes Subtractive methods remove copper from an entirely copper-coated board to leave only the desired copper pattern. In additive methods the pattern is electroplated onto a bare substrate using a complex process. The advantage of the additive method is that less material is needed and less waste is produced. In the full additive process the bare laminate is covered with a photosensitive film which is imaged (exposed to light through a mask and then developed which removes the unexposed film).
Chemical etching is usually done with ammonium persulfate or ferric chloride. For PTH (plated-through holes), additional steps of electroless deposition are done after the holes are drilled, then copper is electroplated to build up the thickness, the boards are screened, and plated with tin/lead. The tin/lead becomes the resist leaving the bare copper to be etched away. The simplest method, used for small-scale production and often by hobbyists, is immersion etching, in which the board is submerged in etching solution such as ferric chloride.
Electroless nickel plating, also known as enickel and NiP, offers many advantages: uniform layer thickness over most complicated surfaces, direct plating of ferrous metals (steel), superior wear and corrosion resistance compared to electroplated nickel or chrome. Much of the chrome plating done in aerospace industry can be replaced with electroless nickel plating, again environmental costs, costs of hexavalent chromium waste disposal and notorious tendency of uneven current distribution favor electroless nickel plating.Kanigen . schnarr.eu Electroless nickel plating is self-catalyzing process, the resultant nickel layer is NiP compound, with 7–11% phosphorus content.
The corrosion protection is primarily due to the anodic potential dissolution of zinc versus iron. Zinc acts as a sacrificial anode for protecting iron (steel). While steel is close to -400 mV, depending on alloy composition, electroplated zinc is much more anodic with -980 mV. Steel is preserved from corrosion by cathodic protection. Alloying zinc with cobalt or nickel at levels less than 1% has minimal effect on the potential; but both alloys improve the capacity of the zinc layer to develop a chromate film by conversion coating.
Adding cloisons according to the pattern previously transferred to the workpiece Adding frit with dropper after sintering cloisons. Upon completion the piece will be fired, then ground (repeating as necessary) then polished and electroplated First the object to be decorated is made or obtained; this will normally be made by different craftspeople. The metal usually used for making the body is copper, since it is cheap, light and easily hammered and stretched, but gold, silver or other metals may be used. Cloisonné wire is made from fine silver or fine gold and is usually about .
For instance, Indium tin oxide (ITO) electrodes have less surface area than those made with other materials, like titanium nitride. More surface area results in reducing impedance of electrode, then neurons signals are obtained easier. ITO electrodes tend to be flat with a relatively small surface area, and are often electroplated with platinum to increase surface area and improve signal-to-area ratio.Interview with Dr. Potter, Associate Professor, Georgia Institute of Technology, 10/16/2013 Digital amplifiers and filters are produced small enough nowadays to be combined with electrodes, serving as preamplifiers.
In electroplating, the item to be coated is placed into a container containing a solution of one or more tin salts. The item is connected to an electrical circuit, forming the cathode (negative) of the circuit while an electrode typically of the same metal to be plated forms the anode (positive). When an electric current is passed through the circuit, metal ions in the solution are attracted to the item. To produce a smooth, shiny surface, the electroplated sheet is then briefly heated above the melting point of tin.
This was electroplated to produce a metal stamper from which a number of identical discs were pressed in shellac or vinyl in a record press. Although the earliest transcription discs were pressed in shellac, in the mid-1930s quieter vinyl compounds were substituted. These discs were used to distribute syndicated programming to individual radio stations. Their use for this purpose persisted long after the advent of magnetic tape recording because it was cheaper to cut and plate a master disc and press 100 identical high- quality discs than to make 100 equally high-quality tape dubs.
Vacubrasion's patented air regulator delivery system was designed and underwent extensive testing by U.S. dermatologists and physicians. Its straightforward design revolutionized microdermabrasion to permit use of almost any type of suction source (primarily retail brand vacuums with a 1.25 inch standard round hose such as Eureka, Stanley vacuums) with a non- disposable, attached electroplated fine diamond abrasive tip. While traditional, older crystal based microdermabrasion and home microdermabrasion systems are not infrequently fraught with clogging issues and potential loss of suction, the crystal-free Vacubrasion systems utilize a universal, larger and more powerful suction source that avoids many of these issues.
The Edward Goodrich Acheson Award is the first and most prestigious award of The Electrochemical Society. The award was established by a gift of $25,000 from past president (and namesake of the award) Edward Goodrich Acheson. Originally, recipients were presented with a prize of $1,000, a gold medal, and a bronze replica, with the intention that the gold medal would "find its way to the safe deposit box," while the replica was reserved for "everyday use". The Acheson family later agreed to have the medal be electroplated gold in order to keep the award fund in balance.
At ultralight densities a further reduced cubic scaling law E∝ρ3 is common, such as with aerogels and aerogel composites. The dependence of scaling on geometry is seen in periodic lattice-based materials that have nearly ideal E∝ρ scaling, with high node connectedness relative to stochastic foams. These structures have previously been implemented only in relatively dense engineered materials. For the ultralight regime the E∝ρ2 scaling seen in denser stochastic cellular materials applies to electroplated tubular nickel micro-lattices, as well as carbon-based open-cell stochastic foams, including carbon microtube aerographite and graphene cork.
Whereas Berliner's zinc masters were easily electroplated to facilitate the master stampers, Johnson's wax discs were not. Johnson contacted C. K. Haddon, an associate from his J. Lodge and Son days who had access to electroplating machinery. Johnson provided Haddon with a fragment of a Gramophone disc, ostensibly to obscure the direction of his research. After two years and an investment of $50,000, Johnson was prepared to enter the Gramophone record market in 1900; he incorporated as the Consolidated Talking Machine Company of Philadelphia, and began selling records as well as a variety of Gramophone models under this name.
Additional hexavalent chromium compounds are chromium trioxide and various salts of chromate and dichromate, among others. Hexavalent chromium is used in textile dyes, wood preservation, anti-corrosion products, chromate conversion coatings, and a variety of niche uses. Industrial uses of hexavalent chromium compounds include chromate pigments in dyes, paints, inks, and plastics; chromates added as anticorrosive agents to paints, primers, and other surface coatings; and chromic acid electroplated onto metal parts to provide a decorative or protective coating. Hexavalent chromium can be formed when performing "hot work" such as welding on stainless steel or melting chromium metal.
Bronzing is a process by which a bronze-like surface is applied to other materials (metallic or non-metallic). Some bronzing processes are merely simulated finishes (patinas) applied to existing metal surfaces, or coatings of powdered metal that give the appearance of a solid metal surface. In other cases, an actual layer of heavy copper is electroplated onto an object to produce a bronze-like surface. This electroplating is the method traditionally used for "bronzing" of baby shoes, but to electroplate a non-conductive item like a baby shoe, a conductive material must first be applied, then the copper plating is done.
Thermal spraying techniques are another popular finishing option, and often have better high temperature properties than electroplated coatings.Thermal spraying, also known as a spray welding process, is an industrial coating process that consists of a heat source (flame or other) and a coating material that can be in a powder or wire form which is melted then sprayed on the surface of the material being treated at a high velocity. The spray treating process is known by many different names such as HVOF (High Velocity Oxygen Fuel), plasma spray, flame spray, arc spray, and metalizing. Metallography allows the metallurgist to study the microstructure of metals.
When observed with a microscope the electroplated chromium will appear to be in the form of crystals with 120° and 60° angles, but these are the ghosts of the original hydride crystals; the actual crystals that finally form in the coating are much smaller and consist of body centered cubic chromium. Superhexagonal chromium hydride has also been produced by exposing chromium films to hydrogen under high pressure and temperature. In 1926 T. Weichselfelder and B. Thiede claimed to have prepared solid chromium trihydride by reacting hydrogen with chromium chloride and phenylmagnesium bromide in ether, forming a black precipitate. Solid hexagonal CrH can burn in air with a bluish flame.
The Oxford Bookstore was a landmark in Calcutta during the days of the Raj, along with Whiteaway Laidlaw's famous departmental store. Like most bookshops of the time, the store also stocked fancy leather goods, toys, perfume, albums, photo frames, indoor games, playing cards and silver and electroplated goods. It features in the memoirs of many eminent British and Indian figures of the twentieth century, and has always played a part in the city's life. In the 1970s, during the Naxalite rising, it was used as a message drop-off point by activists, who would slip notes into particular books for other members of their group to find.
This, in theory, could extend the usability of a pantograph master by using the unworn/lesser worn part of the recording for duplication. Pathé employed this system with mastering their vertically-cut records until 1923; a , master cylinder, rotating at a high speed, would be recorded on. This was done as the resulting cylinder was considerably loud and of very high fidelity. Then, the cylinder would be placed on the mandrel of a duplicating pantograph that would be played with a stylus on the end of a lever, which would transfer the sound to a wax disc master, which would be electroplated and be used to stamp copies out.
Boris Jacobi developed electroplating, electrotyping and galvanoplastic sculpture in RussiaIt is highly believed that the first electroplating was done in Parthian Empire era. Wilhelm König was an assistant at the National Museum of Iraq in the 1930s had observed a number of very fine silver objects from ancient Iraq, plated with very thin layers of gold, and speculated that they were electroplated. He corroborated his idea by explaining Parthian battery which was discovered in1938 near the metropolis of Ctesiphon, the capital of the Parthian (150 BC – 223 AD) and Sasanian (224–650 AD) empires of Persia. however the conclusive evidence of parthian battery usage is place of debate among the researchers.
If the metal concerned is particularly high- risk, the residue from cold sanding processes may also cause fume fever, even if the dose is lower. It may also be caused by electroplated surfaces or metal-rich anti-corrosion paint, such as cadmium passivated steel or zinc chromate primer on aluminium aircraft parts. Exposure has also been reported in use of lead-free ammunition, by the harder steel core stripping metal from the jacket of the bullet and barrel of the rifle. The most plausible metabolic source of the symptoms is a dose-dependent release of certain cytokines, an event which occurs by inhaling metal oxide fumes that injure the lung cells.
The sound-vibrated center of the diaphragm was linked to a cutting stylus that was guided across the surface of a very thick wax disc, engraving a sound-modulated groove into its surface. The wax was too soft to be played back even once without seriously damaging it, although test recordings were sometimes made and sacrificed by playing them back immediately. The wax master disc was sent to a processing plant where it was electroplated to create a negative metal "stamper" used to mould or "press" durable replicas of the recording from heated "biscuits" of a shellac-based compound. Although sound quality was gradually improved by a series of small refinements, the process was inherently insensitive.
The pits of the first nuclear weapons were solid, with an urchin neutron initiator in their center. The Gadget and Fat Man used pits made of 6.2 kg of solid hot pressed plutonium-gallium alloy (at 400 °C and 200 MPa in steel dies — 750 °F and 29,000 psi) half-spheres of 9.2 cm (3.6 inch) diameter, with a 2.5 cm (1 inch) internal cavity for the initiator. The Gadget's pit was electroplated with 0.13 mm of silver; the layer, however, developed blistering and the blisters had to be ground and plated with gold leaf before the test. The Fat Man pit, and those of subsequent models, were all plated with nickel.
Galvanoplastic sculpture on St. Isaac's Cathedral in Saint Petersburg Boris Jacobi in Russia not only rediscovered galvanoplastics, but developed electrotyping and galvanoplastic sculpture. Galvanoplastics quickly came into fashion in Russia, with such people as inventor Peter Bagration, scientist Heinrich Lenz and science fiction author Vladimir Odoyevsky all contributing to further development of the technology. Among the most notorious cases of electroplating usage in mid-19th century Russia were gigantic galvanoplastic sculptures of St. Isaac's Cathedral in Saint Petersburg and gold-electroplated dome of the Cathedral of Christ the Saviour in Moscow, the tallest Orthodox church in the world. Nickel plating Soon after, John Wright of Birmingham, England discovered that potassium cyanide was a suitable electrolyte for gold and silver electroplating.
The 1925 catalogue is thought to have been the last issued under the Fonotipia name, though many titles remained and were listed under one cover with the Odeon catalogue. Electrical recording was begun in Italy in 1926, and the first such issues were released with the 1928 catalogue. Many of the matrices were carried over into pressings issued under Odeon labels. It also seems possible that some of the actual recording equipment was transferred to the Odeon studios, for a distinctive feature of the tracking of the groove-cutting equipment in Fonotipia records shows a single revolution halfway through the side where the groove is widely spaced, and this idiosyncrasy (a security feature so that pirate stampers electroplated from a Fonotipia original could be instantly recognised) occasionally persists under Odeon's aegis.
Quilt Packaging “nodules” extend out from the edge of microchips. Quilt Packaging Nodules have solder on top to enable chip to chip interconnection Quilt Packaging (QP) is an integrated circuit packaging and chip-to-chip interconnect packaging technology that utilizes “nodule” structures that extend out horizontally from the edges of microchips to make electrically and mechanically robust chip-to-chip interconnections. QP nodules are created as an integral part of the microchip using standard back end of the line semiconductor device fabrication techniques. Solder is then electroplated on top of the nodules to enable the chip to chip interconnection with sub-micron alignment accuracy. Small high yielding “chiplets” made from any semiconductor material (Silicon, Gallium Arsenide, Silicon Carbide, Gallium Nitride, etc.), can be “quilted” together to create larger multi-function meta-chip.
With the disintegration of the USSR after 1989, it was agreed that rocket work should be sold to Royal Ordnance, and the transfer was signed on 28 June 1991. Fewer than 200 employees remained on the Banwell site, and the main production was via the Coatings activity, providing a range of both Thermally Sprayed and Electroplated (Tribomet©) coatings for both aerospace and industrial applications. Particular success was gained in later years via the development of a novel plated turbine abrasive tip coatings which helped with the reduction of clearance between the turbine blade and casing in a typical gas turbine engine. After a period 1993-6 when the Bristol Aero Collection occupied Shop No 1, the works were finally closed and Meggitt Aerospace moved elsewhere in Weston super Mare finally selling the Coatings business to Praxair Surface Technologies.
Presto 8N Acetate disc engraver (1950) used by the Canadian Broadcasting Corporation to record radio programs Before the introduction of magnetic tape for mastering, disc recording was done "live" (see direct to disc recording), although sometimes intermediate disc-to-disc editing procedures were involved. Before acetate discs were adopted for the purpose, the master recording was cut into a disc of wax-like material that was too soft to be played non-destructively and had to be electroplated to produce a metal stamper, which was in turn used to make playable pressings. Acetate blanks allowed high-quality playable records to be produced "instantaneously". Acetates were used in radio broadcasting to archive live broadcasts, pre- record local programming, delay network feeds for broadcast at a later time, and provide programming "from home" on the Armed Forces Radio Network.
Color variants are exclusive to certain carriers and retailers; in Australia, the black variant is exclusive to Telstra, while the red variant (released in July 2013) has been exclusive to Phones 4u in the UK and Sprint in the United States. The blue variant (released in September 2013) is exclusive to Carphone Warehouse in the UK and Best Buy in the U.S. A champagne-colored HTC One was released on select European carriers in late-November 2013. A special variant electroplated in 18 carat gold was unveiled by HTC in October 2013 as part of a collaboration with Goldgenie and the Music of Black Origin Awards. Five models were produced in a limited production run; out of the five, one model was given to the winner of the "Best Newcomer" category at the ceremony in Glasgow on 19 October, and others were given away in a promotional contest.
In the longer term, scarcity of tin later led to completely substituting aluminum foil for tin foil and polymer lined steel cans and aseptic packaging substituting for tin electroplated steel cans. Resources change over time with technology and economics; more efficient recovery leads to a drop in the ore grade needed. The average grade of the copper ore processed has dropped from 4.0% copper in 1900 to 1.63% in 1920, 1.20% in 1940, 0.73% in 1960, 0.47% in 1980, and 0.44% in 2000."Domestic Reserves vis-a-vis Resources","Congressional Handbook on U.S. Materials Import Dependency" House Committee on Banking, Finance & Urban Affairs, September 1981, pp. 19-21 Cobalt had been in an iffy supply status ever since the Belgian Congo (world's only significant source of cobalt) was given a hasty independence in 1960 and the cobalt-producing province seceded as Katanga, followed by several wars and insurgencies, local government removals, railroads destroyed, and nationalizations.

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