| 碱处理法制备钛合金表面羟基磷灰石涂层 |
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| 引用本文： | 杨辉,肖兵娟.碱处理法制备钛合金表面羟基磷灰石涂层[J].硅酸盐通报,2009,28(1). |
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| 作者姓名： | 杨辉 肖兵娟 |
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| 作者单位： | 陕西科技大学生命科学与工程学院,西安,710021 |
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| 基金项目： | 陕西省自然科学基金，陕西科技大学B类科研创新团队经费项目 |
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| 摘 要： | 采用碱处理法制备钛基羟基磷灰石涂层,考察了碱液处理中有关钛合金表面活化参数对其诱导羟基磷灰石沉积速度的影响,采用X射线衍射和扫描电镜对样品的化学组成、结构和性能进行了表征,确定了钛合金表面活化处理的最优参数.结果表明,钛基体经10 mol/L氢氧化钠,饱和硝酸钙预钙化处理,模拟体液中培养后,羟基磷灰石沉积速度快,14 d就可形成致密﹑均匀﹑裂纹少的涂层;碱液处理后饱和硝酸钙溶液预钙化可得到片状的羟基磷灰石生物矿化层;且钛基体在600 ℃的热处理是HAP涂层沉积的重要条件之一.与相关研究相比较,该方法的优点在于可在形状复杂的植入体上形成均匀的涂层,工艺简单,并且涂层与基体结合牢固.
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| 关 键 词： | 碱处理 钛合金 预钙化 羟基磷灰石涂层 |
Preparation of Hydroxyapatite Coating on Titanium Alloy Surface Activated with Alkali Processing |
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| YANG Hui,XIAO Bing-juan.Preparation of Hydroxyapatite Coating on Titanium Alloy Surface Activated with Alkali Processing[J].Bulletin of the Chinese Ceramic Society,2009,28(1). |
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| Authors: | YANG Hui XIAO Bing-juan |
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| Affiliation: | Life College of Science & Engineering;Shaanxi University of Science & Technology;Xi'an 710021;China |
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| Abstract: | The surface of titanium alloy plate was activated by using a alkali-treatment method to obtain the hydroxyapatite coating with good bioactivity and adhesion strength. The effects of the surface-activation parameters of titanium alloy matrix on the deposition of hydroxyapatite crystal were investigated. The chemical composition and the morphology of the obtained coatings were characterized by X-ray diffraction (XRD) and scanning electric microscope (SEM). The surface-activation parameters were optimized acco... |
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| Keywords: | alkali-treatment titanium alloy pre-calcification HAP coatings |
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