The thermal stress in zirconia ceramics depends on the mechanical and thermal properties of materials, and is affected by the geometry of structural parts and environmental media.
The performance of industrial ceramics is better than that of ordinary ceramics, and the thermal shock resistance plays a decisive role.
According to this theory, zirconia ceramics have high thermal shock resistance if they have high strength, low thermal conductivity, low thermal expansion coefficient, Young's modulus of elasticity, Poisson's ratio, thermal radiation coefficient and viscosity at the same time.
However, because of its high hardness, low density, high brittleness and other characteristics, the processing of zirconia ceramics will be difficult. For example, large-sized thin-walled zirconia ceramics, because they are too thin, the workpiece may not be able to withstand the grinding force brought by the grinding equipment and crystal breakage occurs. In order to achieve an ideal effect, it is necessary to have a deep understanding and comparison of the means, process design, processing equipment and tools, and processing parameters of ceramic precision processing, so as to find an ideal grinding method with high efficiency, high quality and low cost.