碳源对先驱体转化法制备TaC陶瓷粉体微观结构及性能影响

孙敬伟, 王洪磊, 孙楚函, 周新贵, 纪小宇

Effects of Carbon Sources on Structure and Properties of TaC Ceramic Powder Prepared by Polymer Derived Ceramics

SUN Jingwei, WANG Honglei, SUN Chuhan, ZHOU Xingui, JI Xiaoyu

表1 不同碳源比例所得TaC粉体的平均晶粒尺寸

Table 1 Average grain size of TaC powder with different carbon source ratios

Sample L/nm Sample L/nm PTC1-10 62.5 PTC2-20 71.3 PTC1-15 73.9 PTC2-30 67.9 PTC1-20 67.2 PTC2-35 66.0 PTC1-25 47.2 PTC2-40 60.9 PTC1-30 45.5 PTC2-45 54.8 PTC1-35 39.7 PTC1-40 37.5