In metallurgy carbiding or carburizing is the process for producing carbide coatings on a metal piece. Synthetic sic powder has been mass produced since 1893 for use as an abrasive.

How Is Tungsten Carbide Formed Chronicle

In chemistry a carbide usually describes a compound composed of carbon and a metal.

Where does carbide come from. The pure material is colorless however pieces of technical grade calcium carbide are grey or brown and consist of about 80 85 of cac 2 the rest is cao calcium oxide ca 3 p 2 calcium phosphide. Calcium carbide is important chiefly as a source of acetylene and other chemicals whereas the carbides of silicon tungsten and several other elements are valued for their physical. In its most basic form tungsten carbide is a fine gray powder but it can be pressed and formed into shapes through a process called sintering for use in industrial machinery cutting tools abrasives armor piercing shells and jewellery.

Silicon carbide also known as carborundum kɑːrbəˈrʌndəm is a semiconductor containing silicon and carbon. Carbide any of a class of chemical compounds in which carbon is combined with a metallic or semimetallic element. Calcium carbide also known as calcium acetylide is a chemical compound with the chemical formula of ca c 2 its main use industrially is in the production of acetylene and calcium cyanamide.

The process to combine tungsten metal with carbon to form tungsten carbide abbrev wc can be accomplished several different ways. Approximately 85 of the world s tungsten comes from china and is extracted from various ores. Tungsten carbide is a chemical compound containing equal parts of tungsten and carbon atoms.

Tungsten carbide is approximately twice as stiff as steel with a young s modulus of approximately 530 700 gpa and is double the density of steel nearly. It occurs in nature as the extremely rare mineral moissanite. Grains of silicon carbide can be bonded together by sintering to form very hard ceramics that are widely used in applications requiring high endurance such as car brakes car clutches and ceramic plates in bulletproof vests.

Tungsten ore is refined to form tungsten oxide or pure tungsten powder.