Investigation of Microstructural Features and Mechanical Characteristics of the Pressureless Sintered B4C/C(Graphite) Composites and the B4C-SiC-Si Composites Fabricated by the Silicon Infiltration Process
Abstract:The B4 C/C(graphite) composites were fabricated by employing a pressureless sintering process. The pressureless sintered B4 C/C(graphite) composites exhibited extremely low mechanical characteristics. The liquid silicon infiltration technique was employed for enhancing the mechanical property of B4 C/C(graphite) composites. Since the porosity of the B4 C/C(graphite) composites was about 25–38%, the liquid silicon was able to infiltrate into the interior composites, thereby reacting with B4 C and graphite to ge… Show more
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