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ceramic |
Also found in: Wikipedia, Hutchinson | 0.01 sec. |
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ceramic 1. a hard brittle material made by firing clay and similar substances 2. an object made from such a material 3. of, relating to, or made from a ceramic 4. of or relating to ceramics ceramic [sə′ram·ik] (materials) Inorganic, nonmetallic materials processed or used at high temperature, generally including oxides, nitrides, borides, carbides, silicides, and sulfides. Intermetallic compounds such as aluminides and beryllides are also considered ceramics, as are phosphides, antimonides, and arsenides. Consisting of such a product. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The list includes knives and scissors that never need sharpening, automobile engines of silicon nitride that weigh 40 percent less and have better heat resistance than current motors, noncorrosive bioceramic implants to replace joints in the aged, superconductors made from esoteric ceramic compounds, and ceramic hammers that can chip concrete. Since the 1987 announcement of ceramic compounds that superconduct at liquid-nitrogen temperatures, visions of cheaper, cleaner energy production, magnetically levitated trains and exotic technologies have filled scientists' imaginations. Although the search for new superconductors has focused largely on ceramic compounds containing copper and oxygen, one of the earliest ceramic superconductors, discovered in 1975, consisted of barium, lead, |
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