Wear In Ceramics

Wear modes of ceramics in unlubricated sliding in air are very briefly distinguished as mild or severe wear with the definition explained earlier.

Wear in ceramics.

The durability of nitrokast sic surpasses that of steel high chrome rubber plastics and also other ceramics. Ceramic wear is a complex function of microstructure grain size and shape grain boundary toughness and the operating conditions. As an amazon associate i earn from qualifying purchases. Nitrokast sic can be manufactured into the required design shape and size with close tolerances.

7 18 for the frictional pairs of al 2 o 3 zro 2 and sic sliding against themselves. Nitrokast sic is an effective solution to harsh environments where conventional ceramics wear out or corrode at faster rates. The wear behaviour of engineering ceramics is relatively complex and is subject to many variables. Either one of these two wear modes appears depending on the contact pressure and sliding velocity as shown in fig.

Wear prediction of ceramics has become an important subject in these arenas. Cracking plastic deformation tribochemical interaction abrasion and surface fatigue have all been identified as wear mechanisms operative in ceramic sliding wear situations. The wear behavior of non oxide ceramics in self mated sliding in high temperature and high pressure water is controlled by the tribochemical reaction between ceramics and water at high temperature.