| 微束等离子喷涂制备羟基磷灰石涂层 |
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| 引用本文： | 赵秋颖,贺定勇,李晓延,栗卓新,蒋建敏.微束等离子喷涂制备羟基磷灰石涂层[J].焊接学报,2008,29(3):137-140. |
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| 作者姓名： | 赵秋颖 贺定勇 李晓延 栗卓新 蒋建敏 |
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| 作者单位： | 北京工业大学材料科学与工程学院,北京,1001322 |
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| 基金项目： | 北京市教委科技发展计划项目
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留学人员科技活动择优资助项目 |
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| 摘 要： | 采用微束等离子喷涂系统制备羟基磷灰石涂层,通过扫描电子显微分析(SEM)和X射线衍射分析(XRD)对涂层形貌、相组成和结晶度进行了研究.结果表明,随着喷涂电流和离子气流量的增加,羟基磷灰石粒子的熔化和撞击后的铺展更充分,在70～130 mm范围内随着喷涂距离的增加粒子熔化程度增加.适当的喷涂工艺条件下微束等离子喷涂制备羟基磷灰石涂层的结晶度可以相当或高于传统大气等离子喷涂制备的涂层,有利于涂层在体液环境中稳定性的提高.
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| 关 键 词： | 微束等离子喷涂 羟基磷灰石涂层 结晶度 涂层结构 |
| 文章编号： | 0253-360X（2008）03-0137-04 |
| 收稿时间： | 2007-11-10 |
| 修稿时间： | 2007年11月10 |
Microplasma arc sprayed hydroxyapatite coatings |
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| ZHAO Qiuying,HE Dingyong,LI Xiaoyan,LI Zhuoxin and JIANG Jianmin.Microplasma arc sprayed hydroxyapatite coatings[J].Transactions of The China Welding Institution,2008,29(3):137-140. |
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| Authors: | ZHAO Qiuying HE Dingyong LI Xiaoyan LI Zhuoxin and JIANG Jianmin |
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| Affiliation: | School of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China,School of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China,School of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China,School of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China and School of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China |
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| Abstract: | Microplasma arc spraying was utilized to deposit hydroxyapatite(HA)powders on Ti6Al4V substrate.Scanning electron microscopye and X-ray diffraction were used to investigate the morphology, phase, and cry stallinity of the HA coatings.Sufficient melting of HA particles and spreading after collision were observed with the increase of arc current and gas flow rate.Within the spraying distance range from 70 mm to 130 mm, the degree of melting of the HA particles increased with the spraying distance.Under appropriate spraying parameters, the crystallinity of microplasma arc sprayed HA coatings was comparable or even higher than the one from conventional atmospheric plasma arc spraying, which is beneficial to the improvement of their stabilities in such liquid environment as body fluids. |
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| Keywords: | microplasma arc spraying hydroxyapatite coating crystallinity coating structure |
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