摘要
采用不同球磨介质对Ti+30%HA配比的粉料进行高能球磨,随后于1000℃氩气气氛中热压,研究了球磨工艺对Ti/HA生物复合材料性能的影响。结果表明:随着球磨时间的延长,复合材料的致密度略有下降,硬度上升。热压后,Ti基体形成连通的网络,HA弥散分布其中。干磨工艺条件下,球磨时间越长,显微组织越细;湿磨工艺条件下,较短的球磨时间,即可达到较好的细化弥散效果。因此,采用高能球磨,可使Ti/HA生物复合材料在较低的温度下致密化,同时,湿磨介质的存在,有利于在短时间内得到力学性能和生物活性都较好的Ti/HA生物复合材料。
Ti + 30% HA composite for biomedical application was obtained by high-energy ball milling and hot-pressing in Ar at 1000°C. The effect of milling process on the properties of composite was studied. The results show that: with increasing of milling time, the density of composite decreases and the hardness increases. After hot-pressing, Ti/HA can get high density at low temperature, and form an interconnected network in which HA disperses. When using dry-milling, the longer the milling time, the finer the network of composite will be. While using wet-milling, the composite with good properties and bioactivity is obtained after shorter milling time.
出处
《粉末冶金技术》
EI
CAS
CSCD
北大核心
2005年第2期116-119,共4页
Powder Metallurgy Technology
基金
湖南省自然科学基金资助项目(01JJY2053)
