Ceramics and Composite Materials

Ultra High Temperature Ceramics

Ultrahigh temperature ceramics is a part of the re factory ceramics which define the stability at temperatures exceeding 2000C. This is also used in the environmental side   which is mainly used to detect the extreme temperatures in the chemical reactivity, erosion attack etc. Using the melting temperature we are going to define only some materials under the ultrahigh temperature and ceramics and the materials that includes most of carbides, borides or nitrides of early transition elements

• Borides that includes the ceramic like properties   and also with high temperatures with high elastic and metallic properties such as high electrical conductivity and thermal conductivity. These properties make the UHTC’s more attractive.
• Carbides: Comparing to borides the carbides have high melting point and less electrical conductivity. Carbides have low oxidation resistance at interval temperatures due to formation of the co gas as one of the oxidation product. Carbides are typically used as the single phase ceramics in order to avoid the increase in temperatures, formation of reactions, solution formation and as well as formation of eutectics.
• The development of the ultra-high temperature and ceramics is continued around and across the globe. while the significant progress has been made in order to understanding the fundamental microstructure processing elements  further work indeed  to develop the UHTC’s applications such as sharp leading  and as well as aerospace wheels for the vehicles that are used in the space.