SIC CRYSTAL GROWTH AT LOW TEMPERATURES DERIVED FROM POLYCARBOSILANE WITH BORON CARBIDE ADDITIVE

摘要

This paper describes the experimental results on microstructural observations and tensile tests of Al joined boron carbide (B4C) bulks coated by silicon carbide (SiC). For the formation of SiC coating, polycarbosilane (PCS) was applied and pyrolyzed on the bulk surface in Ar gas. Then, the reaction of B4C, Al and PCS mixed powders in air was investigated by phase identification and thermogravimetric analysis of the heat treated powders.