摘要
采用真空热压烧结法制备Al2O3/Ti(C,N)/FeB复相陶瓷材料,研究了不同Ti(C,N)和FeB质量分数、烧结温度对Al2O3/Ti(C,N)/FeB复相陶瓷材料的相对密度、弯曲强度、断裂韧性的影响。研究结果表明,当FeB掺入量为20wt.%,Ti(C,N)掺入量为10wt.%时,复相陶瓷材料的相对密度达到最大,随着烧结温度的不断升高,材料的相对密度均不断增加。当Ti(C,N)和FeB掺入量分别为15wt.%,在1650℃烧结时具有最大的弯曲强度634.96 MPa。当Ti(C,N)掺入量为10wt.%,FeB掺入量为20wt.%,在1650℃烧结时材料具有最大的断裂韧性5.94 MPa·m1/2。
Al2O3/Ti (C,N)/FeB multiphase ceramics were prepared by vacuum hot pressing.The effects of Ti (C,N) and FeB mass fraction and sintering temperature on relative density,bending strength and fracture toughness of Al2O3/Ti (C,N)/FeB multiphase ceramics were investigated.The results show that,the relative density of multiphase ceramics is the maximum at 20wt.% FeB and 10wt.% Ti (C,N),and with the temperature rising,the multiphase ceramics relative density is on the increase.The maximal bending strength is 634.96 Mpa with 15wt.% Ti(C,N) and 15wt.% FeB after sintering at 1650 ℃.The maximal fracture toughness is 5.94 MPa.m1/2 with 10wt.% Ti(C,N) and 20wt.% FeB when they are sintered at 1650 ℃.
出处
《陶瓷学报》
CAS
北大核心
2014年第2期173-176,共4页
Journal of Ceramics
基金
陕西省教育厅专项科研计划项目(编号:2011JK0844)
关键词
热压烧结
复相陶瓷
相对密度
弯曲强度
断裂韧性
hot pressing
multiphase ceramics
relative density
bending strength
fracture toughness