BG/BG-FHA复合涂层电泳沉积制备及其力学性能研究  

Research on Mechanical Properties of BG/BG-FHA Coating Formed by Electrophoretic Deposition

作　　者：胡海波 刘亚雄[2] 周宏明[2] 李一龙 HU Haibo LIU Yaxiong ZHOU Hongming LI Yilong(Yantai Engineering and Technology College, Yantai 264006, China School of Materials Science and Engineering, Central South University, Changsha 410083, China)

机构地区：[1]烟台工程职业技术学院,山东烟台2640062 [2]中南大学材料科学与工程学院,湖南长沙410083

出　　处：《金属材料与冶金工程》2016年第4期3-9,共7页Metal Materials and Metallurgy Engineering

基　　金：烟台市科技计划项目(2014GX037);清远市科技计划项目2015D009;清远市清城区科技计划项目2015B04;长沙市科技计划项目(k1403375-11)

摘　　要：羟基磷灰石是当下应用最广泛的生物陶瓷材料,通过用F离子对其改性并与玻璃粉(BG)混合,采用电泳沉积(EPD)技术在TC4合金上沉积BG/BG-FHA(生物玻璃-含氟羟基磷灰石)涂层。利用X射线衍射结果分析涂层的物相结构,涂层在热处理温度为740℃;保温时间10 min;冷却速度13℃/min的最优工艺制度下有新相Ti3(PO4)3生成。涂层的微观形貌和结合力分别通过扫描电子显微镜(SEM)、万能力学试验机表征。分析结果表明:涂层结构为BG/BG-FHA,基体与涂层结合力大于19 MPa。Hydroxyapatite is one of the most widely used bioceramic material now. In this thesis, by modifying hydroxyaoatite with F ions and mixing it up with glass powder, we deposited BG / BG-FHA coating on TC4 alloy through electrophoretic deposition technique（EPD）. The phase structure of the coating was analyzed by XRD, and new phase Ti3（PO4）was found with the most optimized process： heat treatment temperature 740 ℃, heat preservation time 10 min and cooling rate 13℃ / min. The microstructure and bonding strength of the coating were characterized by scanning electron microscope（ SEM） and universal mechanical testing machine. The results show that the coating structure is BG / BG-FHA and the bonding strength between substrate and coating is greater than 19 MPa.

关 键 词：BG/BG-FHA 复合涂层 电泳沉积 力学性能 

分 类 号：TQ174[化学工程—陶瓷工业]