Elkem 硅胶产品比利时

Silicon carbide (SiC) is a synthetic silicon and carbon mineral compound, generally produced in electrical resistance furnaces at high temperatures of 1700 – 2500 °C.

Elkem offers a range of metallurgical silicon powders that are carefully selected, crushed, milled to customer specifications and needs. 

Boron carbide (B₄C) is a dark grey–black material comprising 76.5–78 wt% boron, with an exceptional hardness that is only exceeded by diamond and cubic boron nitride.

Fused silica is made of very high purity crystal silica (quartz sand), melted by fusion in electrical arc ovens at temperatures of 1800-2000 ℃ and then cooled sufficiently fast to avoid crystallization and obtain transparent amorphous silica (silicon dioxide).