Silicon Carbide Nanopowder 45nm application on ceramic

SiC (Silicon Carbide Nanopowder 45nm) is currently the most widely used industrial ceramic one of the non-oxidative It has excellent mechanical properties, such as: high strength, high hardness, wear resistance, and good thermal shock resistance, chemical resistance is also very good at the same time, silicon carbide is also a good semiconductor material and the development of nano-materials from the 1980s Gleit2er, Siegeil other's work began., then people on nano-ceramic material made ​​extensive studies in addition to the nano metal oxide ceramics research, nanotechnology has become non-oxide ceramic nanomaterials a very important branch of nano powder morphology, and sintering the green body forming methods, conditions and so affect the final nano-materials the structure and properties of nanomaterials especially late in the sintering (body density reached 90% of the theoretical density after) grain growth will become very serious, resulting in most cases is difficult to obtain the relative density of> 95%, the grain size sintered below 100nm. no significant growth in the crystal grain obtained in the case of high density (> 99%) of nano-ceramic is still relatively difficult. carbide of strong covalent bonds resulting in a high melting point, and then to nano-powders, densification, etc. become more difficult. this paper reviews recent SiC nanopowder synthesis, dispersion and sintering technology research progress.

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