摘要
以Ti3SiC2(10%～50%,体积分数,下同)和3Y-TZP粉为原料,采用等离子体放电烧结(SPS)方法,在外加应力50MPa,烧结温度1300℃条件下,制备了Ti3SiC2/3Y-TZP陶瓷复合材料。研究了Ti3SiC2含量对复合材料的力学性能和可加工性能的影响。实验结果表明,当Ti3SiC2含量大于30%时,复合材料表现出了良好的可加工性能。分析认为,Ti3SiC2材料的微观结构特征和多重能量吸收机制起到了重要作用。
Ti3SiC2/3Y-TZP ceramics composites with different volume fraction of Ti3SiC2 were fabricated at 1300 ℃ by SPS （Spark Plasma Sintering） under a pressure of 50 MPa. The effect of Ti3SiC2 content on mechanical and machinable properties of Ti3SiC2/3Y-TZP composites was also investigated. The results showed that bending strength and fracture toughness of composites were improved greatly with the increase of Ti3SiC2 content. It is proposed that the microstructure characteristics and the toughening mechanisms of Ti3SiC2 are mainly responsible to mechanical behaviors of composites.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2007年第A01期215-217,共3页
Rare Metal Materials and Engineering
