| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
| carboloy |
(kär´b loi) (KEY) [portmanteau word from carbon and alloy], an alloy containing cobalt, tungsten, and carbon. This alloy is extremely hard, harder than steel; it is used to cut steel, porcelain, quartz, and other materials. Its hardness is little affected by heat, and it retains a sharp cutting edge even at red heat. |
| The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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