A Study On Pressure Mediums For High Pressure And High Temperature Experiment

Nowadays, super-hard materials synthesized by static high-pressure include diamond, cubic-BN, polycrystalline diamond and polycrystalline cubic-BN. They all are super-hard materials and have a good heat conductivity, and also they have other excellent capability, so they take a very important place in nowadays science and technology.The synthesization effect of static high-pressure have direct relation with temperature field and pressure field in the cell. So the performance of pressure medium will directly affect the growth surroundings. The paper take experiments with different inner pressure medium and to draw comparisons between each of them. Among the experiments, a particular study on NaCL with some ZrO₂ has been done. This supply the pressure medium used in synthesization of high pressure with some references.The first chapter simply introduced the brief character, application, development and technique of super hard materials. And give the basic theory of pressure medium,...