摘要
以B4C粉、Ti粉、CrO3粉以及Al粉为原料,采用超重力下自挤压辅助燃烧合成技术,以快速凝固方式制备出不同绝热燃烧温度的TiC-TiB2复合陶瓷。XRD、FESEM与EDS结果表明,TiC-TiB2复合陶瓷基体主要由片状的TiB2晶粒构成,同时在TiB2基体间还分布着少量不规则的TiC,(Ti,Cr,Al)C1-x及Al2O3残余夹杂物。随着绝热燃烧温度的升高,Al2O3的含量先减少后增加,(Ti,Cr,Al)C1-x的含量逐渐增加,TiB2与TiC的含量基本不变。
Based on self-pressing assisting combustion synthesis under supergravity, rapidly solidified TiC-TiB2 composite ceramics at different adiabatic combustion temperature were prepared by using Ti,B4C, C and CrO3 as raw materials. XRD, FESEM and EDS results show that the ceramic matrix is mainly composed of TiC sphere and TiB2 platelets, and a few of Al2O3 and （Ti,Cr,Al）C1-x are also detected in between TiC sphere and TiB2 platelets.
出处
《粉末冶金工业》
CAS
北大核心
2012年第1期37-42,共6页
Powder Metallurgy Industry
基金
国家自然科学基金项目资助(51072229)
