Micro-arc oxidation treatment to improve the hard-tissue compatibility of Ti–29Nb–13Ta–4.6Zr alloy
Micro-arc oxidation treatment to improve the hard-tissue compatibility of Ti–29Nb–13Ta–4.6Zr alloy
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DOI：
10.1016/j.apsusc.2012.01.024
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发表时间：
2012-12
影响因子：
6.7
通讯作者：
Y. Tsutsumi;M. Niinomi;M. Nakai;H. Tsutsumi;H. Doi;N. Nomura;T. Hanawa
中科院分区：
文献类型：
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作者：
Y. Tsutsumi;M. Niinomi;M. Nakai;H. Tsutsumi;H. Doi;N. Nomura;T. Hanawa
为了提高β型Ti-29 Nb-13 Ta-4. 6 Zr合金（TNTZ）的生物活性和硬组织相容性，对TNTZ合金进行微弧氧化处理。在甘油磷酸钙和醋酸镁的混合物中通过MAO处理在TNTZ上形成的表面氧化物层的特征在于使用各种表面分析。氧化层主要由两种类型的TiO 2（金红石型和金红石型），它还包含Ca，P和Mg，这是在处理过程中从电解质中纳入。评估在Hanks溶液中浸泡后样品表面上磷酸钙的形成，以确定有和没有MAO处理的TNTZ的生物活性。其结果是，厚的磷酸钙层上形成的TNTZ试样进行MAO处理，而只有少量的沉淀物上观察到的TNTZ没有处理。因此，单胺氧化酶处理是一种很有前途的方法，以提高生物活性和硬组织相容性的TNTZ。
Micro-arc oxidation (MAO) was performed on a β-type Ti–29Nb–13Ta–4.6Zr alloy (TNTZ) in this study to improve its bioactivity in a body fluid and its hard-tissue compatibility. The surface oxide layer formed on TNTZ by MAO treatment in a mixture of calcium glycerophosphate and magnesium acetate was characterized using various surface analyses. The oxide layer was mainly composed of two types of TiO2(rutile and anatase), and it also contained Ca, P, and Mg, which were incorporated from the electrolyte during the treatment. The calcium phosphate formation on the surface of the specimens after immersion in Hanks’ solution was evaluated to determine the bioactivity of TNTZ with and without MAO treatment. As a result, thick calcium phosphate layers formed on the TNTZ specimen that underwent MAO treatment, whereas only a small amount of precipitate was observed on TNTZ without treatment. Thus, the MAO treatment is a promising method to improve the bioactivity and hard-tissue compatibility of TNTZ.