Porcelain enamel belongs to the inorganic nonmetallic material, it is one kind of compound materials, which was coated on the metal surface and burned under high temperature.

As substitution of diopside for talc, the body has lower firing temperature and widening sintering range. The property of diopside porcelain is in keeping with standard of high frequence dielectric.

The developed porcelain material used for isostatic pressing has low sintering temperature and high mechanical, electrical and thermal performances;