|
|||||
|
|
| 生物活性稀土梯度涂层在碱液环境中的电极化后处理 | |
| 引用本文： | 汪震,刘其斌,肖明,杨邦成.生物活性稀土梯度涂层在碱液环境中的电极化后处理[J].材料热处理学报,2011,32(10). |
| 作者姓名： | 汪震 刘其斌 肖明 杨邦成 |
| 作者单位： | 1. 贵州大学材料与冶金学院,贵州贵阳,550003 2. 贵州大学材料与冶金学院,贵州贵阳550003／贵州省材料结构与强度重点实验室,贵州贵阳550003 3. 四川大学生物材料工程研究中心,四川成都,610064 |
| 基金项目： | 国家自然科学基金资助项目(50961003); 贵州大学研究生创新基金资助项目(省研理工2010001); 贵州省科技创新人才团队建设项目(科合人才团队(2010)4004) |
| 摘 要： | 为了改善活性生物稀土梯度涂层的质量,在碱液环境中采用电极化处理法（PAS）对宽带激光熔覆生物活性稀土梯度涂层进行后处理。利用XRD和电化学分析仪对涂层的相组成和耐腐蚀性进行了研究,通过模拟体液浸泡试验考察了生物陶瓷涂层的生物活性和涂层表面的电荷分布情况。结果表明,碱液环境中电极化处理法（PAS）能够提高涂层的结晶度,使涂层中的非晶相、杂相向羟基磷灰石转化。PAS对涂层的耐腐蚀性影响不大。与未处理涂层相比,PAS处理后的涂层生物活性更好,且涂层表面产生了更多的负电荷。 |
| 关 键 词： | 宽带激光熔覆 梯度涂层 稀土氧化物Nd2O3 电极化 生物活性 |
Electric polarized post treatment of rare earth active bioceramic gradient coating in alkaline solution |
|
| WANG Zheng,LIU Qi-bin,XIAO Ming,YANG Bang-cheng.Electric polarized post treatment of rare earth active bioceramic gradient coating in alkaline solution[J].Transactions of Materials and Heat Treatment,2011,32(10). | |
| Authors: | WANG Zheng LIU Qi-bin XIAO Ming YANG Bang-cheng |
| Affiliation: | WANG Zheng1,LIU Qi-bin1,2,XIAO Ming1,YANG Bang-cheng3(1.College of Materials and Metallurgy,Guizhou University,Guiyang 550003,China,2.Guizhou Key Laboratory for Microstructure and Strength of Materials,3.Engineering Research Center in Biomaterials,Sichuan University,Chengdu 610064,China) |
| Abstract: | To improve the quality of rare earth active bioceramic gradient coatings,a method of electric polarized treatment(PAS) was used to post-process the gradient coatings fabricated by wide band laser cladding in alkali liquid.The phases and corrosion resistance of the bioceramic coatings were analyzed by XRD and an electrochemical analyzer.The bioceramic coatings were immersed in simulated body fluid(SBF) to examine its bioactivity and its electrical charge.The experimental results indicate that PAS treatment n... |
| Keywords: | wide-band laser cladding gradient coating rare earths oxide Nd2O3 electric polarization bioactivity |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |