摘要
利用溶胶凝胶法,将由前驱盐制备的羟基磷灰石(HA)和TiO2溶胶直接混合,经干燥、热处理制备了含TiO2的复合羟基磷灰石材料,采用X射线衍射分析了复合TiO2对HA晶化过程的影响,通过对XRD衍射数据的计算,研究了复合TiO2对HA晶粒尺寸和结晶度的影响。结果表明,复合TiO2延缓了HA的结晶,使其晶粒长大,促进HA的分解;复合HA的晶粒直径小于100nm,且结晶度在1000℃左右可达到90%。
Using sol-gel method, Hydroxyapatite/TiO2 composite material was prepared by mixing the Hydroxyapatite （HA） and TiO2 sol made from precursor together, and then drying and heat treating the mixed sol. The effect of TiO2 on the crystallization of HA was investigated by XRD. By analyzing the XRD data, the effects of TiO2 on grain size and crystallinity of HA were studied. The results show that the composite TiO2 delayed the crystallization, promoted the grain growth and accelerated the decomposition of HA. The grain size of composite HA is less than 100 nm, and the crystallinity reached up to 90% at the temperature for about 1000 ℃.
出处
《金属热处理》
CAS
CSCD
北大核心
2008年第7期12-15,共4页
Heat Treatment of Metals
基金
西安市863成果转化专项(ZH06002)
作者简介
韩建业（1980-），男，河北邢台人，博士研究生，主要从事医用钛合金表面改性研究，已发表文章9篇。联系电话：029—86264213 E—mail：nwpuhanjy@sina．com
