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2 不同裂解温度PTC1-25产物D、G峰中心位置及

${{I}_{\mathbf{D}}}/{{I}_{\mathbf{G}}}$

比值

Table 2 Center positions of D and G peaks of PTC1-25 products obtained at different pyrolysis temperatures and ratios of

${{I}_{\mathbf{D}}}/{{I}_{\mathbf{G}}}$

Temperature/℃	ω_D/cm^-1	ω_G/cm^-1	${{I}_{\text{D}}}/{{I}_{\text{G}}}$
1200	1313	1576	2.045
1300	1315	1579	1.641
1400	1313	1580	1.605