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SiC Sees Growing Interest from Ceramic Industry, Reports SNE Research

02 May 2013 • by Natalie Aster

The laboratory scale production of SiC was made about 150 years ago. Realizing the importance of abrasives and cutting materials, Acheson developed a process for making silicon carbide powder as a commercial solvent, which has been used to produce SiC until now. This material has the second highest hardness (Mohs hardness 9-10) to diamond. Although it is mainly used as an abrasive or cutting material, it is also used as a refractory brick. About 10,000 tons of SiC bricks, for instance, are used in steel plants each year, and some industries have more need of this material as an refractory material rather than an abrasive.

New report "SiC single-crystal technology trend and market forecast (2010~2020)" by SNE Research states that the ceramic industry is showing growing interest in the application of SiC as a structural material due to its high density and high strength. In general industries, SiC is considered as one of the most promising materials to substitute metal used in ceramic engines and gas turbines. In the nuclear industry, it can be used as nuclear fuel cladding, a refractory brick, a ceramic filter for incinerators, and a plasma shielding material for fusion reactors.

Report Details:

SiC single-crystal technology trend and market forecast (2010~2020)
Published: January, 2013
Pages: 189
Price: US$ 4,350.00

SiC for commercial use is attained by heating a mixture of silica and coke (carbon). The basic reaction can be expressed as follows. Since the formation of SiC is based on an exothermic reaction, the heat generated by the reaction is used for self heating without external heat supply. Only a few days after the reaction, a rainbow-colored black or green mixture can be attained. This mixture is pulverized and separated according to particle size. In general, it is hard to sinter particles of 10 ?m or more. SiC powder used to manufacture refractory bricks is produced by mixing and heating coarse powder, silicon nitride as a binder, nitride-oxide, and aluminosilicate glass or through reaction sintering of silicon and carbon.

SiC used as a heating element is combined by heating high purity powder at 2400℃. A small amount of SiC powder is attained by pyrolysis of gas prepared by mixing volatile silicon and carbon (CVD).

More information can be found in the report “SiC single-crystal technology trend and market forecast (2010~2020)” by SNE Research.

To order the report or ask for sample pages contact [email protected]


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