Ceramic coating of Ti and its alloys using dry processes for biomedical applications
Ceramic coating of Ti and its alloys using dry processes for biomedical applications
复制标题
用于生物医学应用的采用干法工艺的钛及其合金陶瓷涂层
DOI：
10.1007/978-981-10-1560-1_2
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Ogasawara K. and Narushima T.
中科院分区：
文献类型：
--
作者：
Ueda T.;Kondo N.;Sado S.;Gokcekaya O.;Ueda K.;Ogasawara K. and Narushima T.
本章研究了钛及其合金上的生物陶瓷涂层。综述了金属生物材料的表面改性工艺，描述了无定形磷酸钙（ACP）和富含锐钛矿的TiO 2 涂层的形成和评价。涂层采用射频（RF）磁控溅射和热氧化等干法工艺。含银 ACP 涂膜通过 ACP 的再吸收性不断释放银离子而表现出抗菌活性。通过两步热氧化工艺制备的富含锐钛矿的TiO 2 层显示出有机化合物在紫外光和可见光照射下的光降解。通过热氧化将Au从Ti-Au合金基底引入TiO 2 层有助于可见光响应的表达。
In this chapter, bioceramic coatings on Ti and its alloys are examined. Surface modification processes of metallic biomaterials are reviewed, and the formation and evaluation of amorphous calcium phosphate (ACP) and anatase-rich TiO 2 coatings are described. Dry processes such as radio-frequency (RF) magnetron sputtering and thermal oxidation are employed for coating. Ag-containing ACP coating films exhibited antibacterial activity through the continuous release of Ag ions, caused by the resorbability of ACP. Anatase-rich TiO 2 layers fabricated by a two-step thermal oxidation process showed photodegradation of organic compounds under both UV-and visible-light irradiation. The introduction of Au into TiO 2 layers from Ti-Au alloy substrates by thermal oxidation contributed to the expression of visible-light response.