What Is Black Silicon Carbide?

Black silicon carbide, also known as silicon carbide (SiC) or siliconized carbon (SiC), is a compound composed of the elements carbon (C) and silicon (Si). It is a man-made material, produced by the reaction of carbon and silicon at high temperatures. Its lattice structure is similar to that of diamond, being composed of carbon and silicon units formed by atoms in an orthotetrahedral shape. It has metallic luster crystals, usually black in color, and is also hard and has semiconducting properties.

Black silicon carbide is prepared in a variety of ways, commonly by heating raw materials such as quartz sand, coke, and wood chips in a blast furnace to about 2000°C, where they undergo a carbonization reaction.

This material has excellent hardness, wear resistance and chemical stability, and is therefore widely used in abrasives, ceramics, refractories and other fields. In addition, black silicon carbide can also be used in abrasives, ceramics, electronics, aerospace, automotive and many other fields.

For example, in the field of abrasives, black silicon carbide is widely used in grinding, lapping, polishing and other processes, and can process a variety of hard materials; in the field of ceramics, black silicon carbide can be compounded with other ceramic materials to prepare high-performance ceramic materials.

It is worth noting that the production process of black silicon carbide requires high temperature and high pressure, so the production cost is high. At the same time, due to its high hardness and brittleness, black silicon carbide needs to be used with care to avoid its impact, or it may lead to its rupture.