反应烧结碳化硅陶瓷素坯连接的研究

Joining in green state between reaction-bonded silicon carbide (RBSC) were researched using carbide and silicon carbide paste as joining materials. The effects of carbonous density、solid volume and silicon carbide powders with different particle size distribution loading on the microstructures, performance and the humidity of basis materials on the strength of basis material and paste were investigated. The results show that the solder with carbonous density varying from 0.84g/cm3 to 0.86g/cm3 ,solid volume loading being 57% ,and the viscosity being over 1Pa·s,the strength of the welding joints is 375MPa. Reason of high intensity of welding seam is the same structure of welding joints as structure of RBSC.