INTERFACE IN HYDROXYLAPATITE COATED TI6Al4V ALLOYS

机译：羟基磷灰石包覆的Ti6Al4V合金的界面

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The aim of the present study is to develop a better understanding of the interface reaction between hydroxylapatite and Ti6Al4V alloys. Hydroxylapatite coatings on Ti6Al4V, Hydroxylapatite-metallic titanium powder, hydroxylapatite-titania composites were prepared via air sintering and/or hot isostatic pressing (HIP). The reaction between components was monitored with EPMA line scanning technique, XRD, and thermal analysis. EPMA analysis on the interface between the hydroxylapatite and Ti6Al4V alloy showed interdiffusion profiles of all the hydroxylapatite and alloy elements suggesting interfacial bonding. The experiments on the composites showed no significant reaction between hydroxylapatite and metallic titanium in the vacuum environment. However, a reaction occurred between hydroxylapatite and titanium oxide, which formed CaTiO3 with a perovskite structure, Ca_3(PO_4)_2 (tri-calcium phosphate; whitlockite) and water. Presence of air in the sintering environment promoted this reaction.

机译：本研究的目的是更好地理解羟基磷灰石与Ti6Al4V合金之间的界面反应。通过空气烧结和/或热等静压（HIP）制备Ti6Al4V上的羟基磷灰石涂层，羟基磷灰石金属钛粉，羟基磷灰石-二氧化钛复合材料。组分之间的反应用EPMA线扫描技术，XRD和热分析监测。对羟基磷灰石与Ti6Al4V合金之间的界面进行EPMA分析表明，所有羟基磷灰石与合金元素之间的扩散曲线表明存在界面结合。复合材料的实验表明，在真空环境下羟基磷灰石与金属钛之间没有明显的反应。然而，羟基磷灰石与二氧化钛之间发生反应，形成具有钙钛矿结构的CaTiO3，Ca_3（PO_4）_2（磷酸三钙；菱镁矿）和水。烧结环境中空气的存在促进了该反应。

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《7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.1: Advanced Energy Systems; Advanced Heat Transfer in Engineering Systems; ...》|2004年|P.305-309|共5页
会议地点 Manchester(GB)
作者
Celalettin Ergun; Zafer Evis; Robert H.Doremus;
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作者单位

Istanbul Tecnical University, Mechanical Engineering, Taksim Istanbul, TURKEY;

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原文格式 PDF
正文语种 eng
中图分类机械设计、计算与制图;
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INTERFACE IN HYDROXYLAPATITE COATED TI6Al4V ALLOYS

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