羟基磷灰石涂层材料的制备及其性能表征  

Fabrication and Properties of HAP-Bioglass-Ti6Al4V Composite

作　　者：申剑锋[1] 常程康[1] 毛大立[1] 吴建生[1] 

机构地区：[1]上海交通大学教育部高温材料及高温测试开放实验室,上海200030

出　　处：《无机材料学报》2001年第5期993-998,共6页Journal of Inorganic Materials

基　　金：上海市启明星计划赞助(98QE14031)

摘　　要：设计并采用类似搪瓷涂覆的工艺制备了羟基磷灰石－Ｔｉ６Ａｌ４Ｖ复合材料．使用ＸＲＤ、ＳＥＭ对复合材料的相组成和显微结构进行分析和表征，在模拟体液中观察了获得材料的生物相容性．结果表明；在涂层中，羟基磷灰石粒子均匀地分散在玻璃基体中，它们保持原有的晶格结构，未发生相分解等现象．烧成温度对中间层玻璃涂层的显微结构有着较为明显的影响．中间层玻璃涂层与钛合金的结合强度或不小于２９．７３ＭＰａ，远高于等离子喷涂，达到使用要求．在模拟体液中浸泡一段时间后，ＸＰＳ分析表明复合材料表面有新生羟基磷灰石粒子析出，表明复合涂层有优良的生物相容性．The HAP dispersing bioglass-Ti6Al4V composite was made by the enameling method. Since the intermediate layer of bioactive glass has no effect on hydroxyapatite particles, the par- ticles in the coating remain their apatite structure. The sintering temperature greatly effects the microstructure of as obtained intermediate layer. The bonding strength between bioglass layer and underlined substrates is not less than 29.73 MPa, much higher than that by plasma spraying. XPS results show that after the coating being soaked in the simulated body fluid for a certain time, new hydroxyapatite particles will separate out on the surface of the composite coating, showing the composite coating having a good bioactivity

关 键 词：羟基磷灰石 生物玻璃 生物相容性 生物活性 涂层材料 涂覆烧成工艺 

分 类 号：R318.08[医药卫生—生物医学工程]