摘要
以煅烧缺钙磷灰石制备的双相磷酸钙(BCP)粉体为原料,采用热压烧结的方法制备了一种可用于骨替代、力学性能优良的生物陶瓷材料。研究了烧结温度对BCP陶瓷力学性能、物相组成和微观形貌的影响。当烧结温度为1100℃和1150℃时,BCP陶瓷的物相组成为HA和β-TCP,断裂方式以穿晶断裂为主;当烧结温度为1200℃时,BCP陶瓷的物相组成为HA和α-TCP,断裂方式为穿晶和沿晶混合断裂模式。当烧结温度为1150℃时,BCP陶瓷的弯曲强度和断裂韧性最高,分别为98 MPa和0.99 MPa·m1/2。
Biphasic calcium phosphate（BCP） bioceramics were prepared by hot pressing at different sintering temperatures.Based on in-depth mechanical test and observation of microstructure,the influence of sintering temperature on BCP bioceramics was investigated.Improved the sintering temperature,the phases of the BCP bioceramics were changed from HA and β-TCP to HA and α-TCP,meanwhile,the fracture mode was modified from a trans-granular mode to the mixture of trans-and inergranular mode.The BCP bioceramics sintered at 1150 ℃ exhibited the maximun bending strength and fracture toughness of 98 MPa and 0.99 MPa·m1/2.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2016年第6期1897-1901,共5页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金(81171463)
山东省高校科技计划(J14LA59)
淄博市科技发展计划(2014kj010079)
关键词
双相磷酸钙
烧结温度
力学性能
biphasic calcium phosphate
sintering temperature
mechanical property
