Question

Mention briefly about types of ceramics.

Answer 1

Different types of ceramics are:
1. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Porcelain is a hard, translucent, and white coloured ceramic. It is made by kneading the mixture of kaolin, glass, granite, and mineral feldspar with water. The mixture is then shaped and fired in a kiln at 1200 °C - 1450 °C to obtain glazing beautiful articles.

2. Bone china is a type of ceramic. It is made by adding some ash of animal bones in the mixture of china clay, feldspar, and fine silica. This ceramic is harder than porcelain.

3. Advanced ceramics are manufactured by the process known as sintering. During this process oxides like alumina, zirconia, silica, and compounds like silicon carbide, boron carbide is used as raw materials. This requires a temperature of 1600°C to 1800°C and an oxygen free atmosphere.