摘要
采用Ｘ射线衍射、扫描电镜和差热分析等手段，研究了钙磷化合物－镁铝尖晶石（ＣＰ－Ｓｐｉｎｅｌ）复合生物材料的微观结构、力学性能和生物学特性。结果表明，Ｓｐｉｎｅｌ的加入显著地提高ＣＰ材料的力学性能，在高温下它还阻止磷酸钙发生相转变，从而保证了该材料的生物活性及适合于人体骨需求的力学性能．ＣＰ－Ｓｐｉｎｅｌ材料具有很好的生物相容性，无毒无刺激性，溶血指数小于２％。
The microstructures，mechanical and biological properties of CP-Spinel bioceramic com-posite are studied by means of XRD，SEM，EDAX and TG／DTA. The results show that theaddition of Spinel increases mechanical properties of CP ceramic. Spinel phase can inhibitphase－transformation of TCP，which is favourable to the bioactivity and mechanical perfor-mance of the composite as bone substitutes.The composite has excellent biocompatibility，non－toxicity and non-irritation，The haemolysis coefficient of the composite is less than 2％.
基金
国家自然科学基金
关键词
生物材料
CP-Spinel
复合材料
biomaterial；calcium-phosphate compound；MgAl_2O_4 Spinel；biological tests
