溶胶-凝胶法合成HA/TiO_2生物薄膜  

Sol-Gel Derived HA/TiO2 Biocoatings on Titanium Substrate

作　　者：徐威[1] 胡望宇[1] 李美姮[1] Wen Cui e 

机构地区：[1]湖南大学应用物理系,湖南长沙410082 [2]Faculty of Science and Technology,Deakin University,Pigdons Rd,Geelong Victoria3217,Australia

出　　处：《钛工业进展》2006年第2期17-20,共4页Titanium Industry Progress

摘　　要：用溶胶-凝胶法在纯钛表面合成了HA(羟基磷灰石)/TiO2生物薄膜,并使用X射线衍射仪和扫描电镜对薄膜的相结构与表面形貌进行测试分析。HA在580℃开始结晶,其结晶率在780℃有所提高。结合良好的HA/TiO2生物薄膜出现微孔结构,HA/TiO2生物薄膜的厚度约为5μm^7μm。A simple sol-gel method was successfully developed for HA/TiO2 double layer deposition on titanium substrate. Phase formation, surface morphology, and interfacial microstructure were investigated by XRD and SEM. The HA phase began to crystallize after heat treatment at 580 ℃, and increased in crystallinity above 780 ℃. The film showed a porous structure and dense morphology with a thickness of 5 μm-7μm after heat treatment.

关 键 词：羟基磷灰石 二氧化钛 溶胶-凝胶法 生物材料 

分 类 号：TB383.2[一般工业技术—材料科学与工程]