Jewelry: Costume pieces, inexpensive metal amulets and baubles found in vending machines sometimes test positive for lead.
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To save money, the Bloom Energy Server uses inexpensive metal alloy plates for electric conductance between the two ceramic fast ion conductor plates. In competing lower temperature fuel cells, platinum is required at the cathode.
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Zinc : A grey inexpensive metal, usually alloyed with copper to make brass coins, but is also used in pure form for emergency coinage when the usual coinage metal is not available due to war or other serious crisis. Much of the coinage struck in Nazi-Occupied Europe was tin- plated zinc.
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At the negative electrode zinc is the electroactive species. Zinc has long been used as the negative electrode of primary cells. It is a widely available, relatively inexpensive metal, which is electropositive, with a standard reduction potential E° = −0.76 V vs SHE. However, it is rather stable in contact with neutral and alkaline aqueous solutions.
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A base metal is a common and inexpensive metal, as opposed to a precious metal such as gold or silver.Oxford dictionary definition of "base metal" A long- time goal of alchemists was the transmutation of a base (low grade) metal into a precious metal. In numismatics, coins often derived their value from the precious metal content; however, base metals have also been used in coins in the past and today.
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As catalysis is carried out on the nanoparticle surface, the atoms at the center are wasted. This becomes more important when expensive metals are used as catalysts. To reduce the cost of the catalysts an inexpensive metal is made the core and the catalytically active metal is taken as the shell. This is achieved by first reducing the core metal followed by nucleation of the shell metal around it.
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A clip (called chargers by the British) is a device that is used to store multiple rounds of ammunition together as a unit, ready for insertion into the magazine or cylinder of a firearm. This speeds up the process of loading and reloading the firearm as several rounds can be loaded at once, rather than one round being loaded at a time. Several different types of clips exist, most of which are made of inexpensive metal stampings that are designed to be disposable, though they are often re-used. In 1888 the Germans developed the Model 1888 Commission Rifle with a 5-round en bloc clip-fed internal box magazine.
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Furthermore, the mass prototypes produced by ion deposition techniques would have been nothing like the freestanding platinum- iridium prototypes currently in use; they would have been deposited onto—and become part of—an electrode imbedded into one pan of a special balance integrated into the device. Moreover, the ion-deposited mass wouldn't have had a hard, highly polished surface that can be vigorously cleaned like those of current prototypes. Gold, while dense and a noble metal (resistant to oxidation and the formation of other compounds), is extremely soft so an internal gold prototype would have to be kept well isolated and scrupulously clean to avoid contamination and the potential of wear from having to remove the contamination. Bismuth, which is an inexpensive metal used in low- temperature solders, slowly oxidises when exposed to room-temperature air and forms other chemical compounds and so would not have produced stable reference masses unless it was continually maintained in a vacuum or inert atmosphere.
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Early work in Egyptology also included a similar motive. Modern amateur treasure hunters use relatively inexpensive metal detectors to locate finds at terrestrial sites. Underwater archaeologist and sometime treasure hunter Peter Throckmorton, in a paper he wrote in 1969 as part of a Historical Archaeology Forum on E. Lee Spence's salvage of a Civil War blockade runner, addressing the question of whether treasure hunting and archaeology are in conflict, stated: “The foregoing discussion may seem like an attack on Mr. Spence. I do not mean this to be so. A whole new branch of archaeology, that of Mycenaean studies, was founded by Heinrich Schliemann, who also had the courage to remember his dreams … It is right to dream, and it would be the worst kind of mistake on the part of the state to discourage the big dreams of men like Mr. Spence, and to let a project requiring that sort of enterprise fall into the hands of what Mr. Spence's friend terms ‘some bloody historical society’ which might lay the dead hand of unimaginative and stereotyped thinking on Mr. Spence's courage and ability.”"Salvage Versus Archaeology" by Peter Throckmorton, The Historical Archaeology Forum, 1969, Volume 4, Part 1, Part 2, p.
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