碳化硼颗粒级配对硅反应结合碳化硼复合材料结构与性能的影响

夏乾, 孙是昊, 赵义亮, 张翠萍, 茹红强, 王伟, 岳新艳

Effect of Boron Carbide Particle Size Distribution on the Microstructure and Properties of Reaction Bonded Boron Carbide Ceramic Composites by Silicon Infiltration

XIA Qian, SUN Shihao, ZHAO Yiliang, ZHANG Cuiping, RU Hongqiang, WANG Wei, YUE Xinyan

表2 不同颗粒级配配方RBBC复合材料的相组成(体积分数)

Table 2 Phase composition of RBBC composites with different particle size distributions (%, in volume)

Group Theoretical Actual B4C Si B4C+B12(C,Si,B)3 SiC Si R1 54.8 45.2 57.3 14.2 28.5 R2 62.7 37.3 63.9 13.3 22.8 R10 68.7 31.3 67.8 5.2 27.0 R11 69.9 30.1 69.4 5.1 25.5 R12 54.4 45.6 53.8 3.5 42.7