ceramic materials have many characteristics, such as high temperature mechanical properties, chemical erosion resistance, electrical insulation, high hardness and wear resistance. However, due to its structure, ceramic materials lack the ability to slip and cause plastic deformation in the stressed state like metals, which is prone to defects, cracks and high stress concentration, thus determining the brittleness of ceramic materials.
Therefore, improving the brittleness of ceramic materials is a long-term concern of ceramicists. In recent years, fiber reinforcement and zirconia phase change toughening have been proved to be two effective ways to improve the brittleness of ceramics and strengthen ceramics in practice.
structural ceramics have become one of the main structural ceramics due to their good properties of phase transformation toughening. In the research of nanocomposites, nano-yttrium stabilized zirconia for structural ceramics was used as a dispersion relative matrix for strengthening and toughening.
1.ordinary zirconia ceramic structural parts toughened, ceramic knife toughened;
2.alumina ceramic structural parts;