carbide


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Related to carbide: Carbide lamp, calcium carbide, tungsten carbide

carbide,

any one of a group of compounds that contain carbon and one other element that is either a metal, boron, or silicon. Generally, a carbide is prepared by heating a metal, metal oxide, or metal hydride with carbon or a carbon compound. Calcium carbide, CaC2, can be made by heating calcium oxide and coke in an electric furnace; it reacts with water to yield acetylene and is an important source of the gas. Barium carbide reacts similarly. Aluminum carbide reacts with water to yield methane. Some carbides are unaffected by water, e.g., chromium carbide and silicon carbidesilicon carbide,
chemical compound, SiC, that forms extremely hard, dark, iridescent crystals that are insoluble in water and other common solvents. Widely used as an abrasive, it is marketed under such familiar trade names as Carborundum and Crystolon.
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. Silicon carbide, almost as hard as diamond, is used as an abrasive. Tungsten carbide, also very hard, is used for cutting edges of machine tools. Iron carbides are present in steel, cast iron, and some other iron alloys.

carbide

[′kär‚bīd]
(inorganic chemistry)
A binary compound of carbon with an element more electropositive than carbon; carbon-hydrogen compounds are excluded.
(materials)
A cemented or compacted mixture of powdered carbides of heavy metals forming a hard material used in metal-cutting tools. Also known as cemented carbide.

carbide

1. a binary compound of carbon with a more electropositive element
References in periodicals archive ?
Dow and Union Carbide now make lesser-known products like polypropylene and ethylene glycol, so-called intermediate and basic chemicals that crop up in everything from computers to food wrapping.
Carbide, the multibillion dollar multinational based in Danbury, Connecticut, has always maintained that operation and responsibility for the Bhopal plant resided solely with its Indian affiliate, Union Carbide India Limited (UCIL), which was 50.
On the whole, boron carbide prices have been rising since 2007.
As an example, Global Gear and Machining (GGM) (Downers Grove, IL), which makes 300,000 automotive drive train flanges a year, cut their drill inventory from 600 solid carbide drills to just 20 indexable Qwik-Twist drill bodies and a supply of replaceable points.
Carbide licensed the technology but did not offer a machine.
Table 29: European Historic Review for Silicon Carbide Abrasives by Geographic Region - France, Germany, Italy, UK, Spain, Russia & Rest of Europe Markets Independently Analyzed with Annual Sales Figures in US$ Million for Years 1991 through 2000 (includes corresponding Graph/Chart) III-18
Mayo Straight Needle holder 23-24 cm (Tungsten carbide tip),
Total Carbide, a leading developer of tungsten carbide wear parts, is launching a new process that produces tungsten carbide components with complex internal forms for use in harsh environments such as valves operating in high-pressure, highly abrasive or corrosive environments.
In 2014, there were more than 200 silicon carbide smelting enterprises in China with the annual capacity of over 2.
Mitsubishi Materials is a major world manufacturer of Tungsten Carbide cutting tools, excelling in the manufacturing process control of the raw material (powder) to final product.
China is the leading producer and consumer of silicon carbide, and its output of silicon carbide in 2009 reached 535 kilotons or so, occupying 56.
On August 11, 1985, the Union Carbide facility in Institute, West Virginia, had a major chemical release.