悬浮液等离子喷涂制备氟代羟基磷灰石生物涂层  

Preparation of Fluorohydroxyapatite Bio-Coating by Suspension Plasma Spraying

作　　者：时丽 白玉[1] 周生健 迟柏祥 马文[1] Shi Li;Bai Yu;Zhou Shengjian;Chi Baixiang;Ma Wen(Inner Mongolia Key Laboratory of Thin Film and Coatings,Inner Mongolia University of Technology,Hohhot 010051,China)

机构地区：[1]内蒙古工业大学内蒙古自治区薄膜与涂层重点实验室,内蒙古呼和浩特010051

出　　处：《稀有金属材料与工程》2020年第2期540-544,共5页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51462026;51672136);内蒙古自然科学基金(2018MS05010)。

摘　　要：主要以氟代羟基磷灰石(FHA)悬浮液为原料,采用悬浮液等离子喷涂技术,在钛基体表面制备了FHA涂层。通过XRD,SEM,FT-IR以及XPS等测试手段,对不同喷涂功率制备的FHA涂层进行表征,并测试其性能。结果表明,粉体及制备的涂层主要晶相为HA,但是粉体进入等离子火焰形成涂层的过程中发生分解,生成α-磷酸钙(α-TCP),β-磷酸钙(β-TCP),以及磷酸四钙(TTCP)等分解产物。XPS结果证明F离子成功取代了OH基团进入HA晶格中,导致FHA涂层的抗溶解性明显提高。电化学实验结果表明,随着喷涂功率的增加,涂层的抗腐蚀性能提高。Home-synthesized FHA powders were used to obtain a water-based suspension.And the FHA coating was fabricated on a Ti substrate by suspension plasma spraying technique.The effect of spraying power on the microstructure and properties of coatings was studied.The crystalline phases and chemical composition of the coatings were characterized through XRD,SEM,FT-IR and XPS.The result shows that all coatings contain a HA major phase and the decomposition phases(α-TCP,β-TCP and TTCP).FT-IR and XPS results confirm the presence of fluorine in the as-sprayed coatings.The solubility result shows that the substitution of fluorine into the HA structure has a positive effect on the dissolution resistance of the HA.The corrosion behavior was studied in a SBF solution using potentiodynamic polarization test,and the results indicate that the coatings enhance the corrosion resistance of the Ti substrate.

关 键 词：悬浮液等离子喷涂 氟代羟基磷灰石 生物涂层 相分析 抗腐蚀性能 

分 类 号：TQ174.75[化学工程—陶瓷工业] TQ174.758.16[化学工程—硅酸盐工业]