硅酸盐学报2008，Vol.36Issue(5)：593-596,4.
AlN-Re2O3液相烧结碳化硅
LIQUID PHASE SINTERING OF SiC WITH AIN-Re2O3 ADDITIVES
摘要
Abstract
Dense silicon carbide ceramics were prepared by hot press (liP) and pressureless sintering methods and liquid phase sin-tering with AIN and Re2O3 (Re2O3-Y2O3 and La2O3) as sintering additives. The composition of the starting samples is 80% SiC and20% sintering additives (AIN and Re2O3) in mass; the mole ratio of AIN to (La0.5Y0.5) O3 is 2:1.The test results show the mechanicsproperties of the liP liquid phase sintered (LPS) SiC ceramics are much better than that of pressureless sintered LPS SiC ceramics.The HP LPS-SiC ceramic at 1 850℃ for 0.5 h in N2 pressure of 30 MPa has a bending strength >800 MPa, and a fracture toughnessshows elongated crystal grain structure, and its fracture mode is intergranular fracture.关键词
碳化硅/氮化铝/液相烧结/结构陶瓷/稀土氧化物Key words
silicon carbide/ aluminum nitride/ liquid phase sintering/ structure ceramics/ rare earth oxide分类
化学工程引用本文复制引用
吴澜尔,陈宇红,江涌,黄振坤..AlN-Re2O3液相烧结碳化硅[J].硅酸盐学报,2008,36(5):593-596,4.基金项目
国家863计划(2002AA33210)资助项目. （2002AA33210）
