This paper describes the experimental results on microstructural observations and tensile tests of A1 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 B 4 C, A1 and PCS mixed powders in air was investigated by phase identification and thermogravimetric analysis of the heat treated powders.
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