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shape memory
(Encyclopedia) shape memory, property possessed by certain alloys that allows them to return, when heated, to their original shape after having been deformed. This effect results because, as the…brasses, ornamental
(Encyclopedia) brasses, ornamental. Brass, a copper-zinc alloy produced since imperial Roman times, is closely associated in art with bronze, a copper-tin alloy (see bronze sculpture). Brass was…azurite
(Encyclopedia) azuriteazuriteăzhˈərīt [key], blue mineral, the basic carbonate of copper, occurring in monoclinic crystals or masses that range from transparent to translucent and opaque. It is…plating
(Encyclopedia) plating, application of a plate, or coat, of metal to a surface for decoration, reflection of light, protection against corrosion, or increased wearing quality. The practice is of…silver
(Encyclopedia) silver, metallic chemical element; symbol Ag [Lat. argentum]; at. no. 47; at. wt. 107.8682; m.p. 961.93℃; b.p. 2,212℃; sp. gr. 10.5 at 20℃; valence +1 or +2. Pure silver is nearly…German silver
(Encyclopedia) German silver, name for various alloys of copper, zinc, and nickel, sometimes also containing lead and tin. They were originally named for their silver-white color, but use of the term…Balkash, lake, Kazakhstan
(Encyclopedia) Balkash, lake, 6,562 sq mi (16,996 sq km), c.350 mi (560 km) long, maximum width c.45 mi (70 km), in E Kazakhstan. The lake, which has an average depth of 20 ft (6 m), stretches from…Buchans
(Encyclopedia) Buchans, town, central Newfoundland, N.L., Canada, on Red Indian Lake. It has a large mine that yields lead, silver, zinc, and copper.voltaic cell
(Encyclopedia) voltaic cell, a simple device with which chemical energy is converted into electrical energy. Two dissimilar metals (e.g., copper and zinc) are immersed in an electrolyte (e.g., a…Buttle Lake
(Encyclopedia) Buttle Lake, 11 sq mi (28 sq km), central Vancouver Island, SW British Columbia, Canada. It is the site of major zinc and copper deposits.Trending
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