Physical, chemical and biological properties of micro-arc deposited calcium phosphate coatings on titanium and zirconium-niobium alloy
Physical, chemical and biological properties of micro-arc deposited calcium phosphate coatings on titanium and zirconium-niobium alloy
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DOI：
10.1002/mawe.201300107
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发表时间：
2013-02-01
影响因子：
1.1
通讯作者：
Khlusov, I. A.
中科院分区：
文献类型：
--
作者：
Legostaeva, E. V.;Kulyashova, K. S.;Khlusov, I. A.
对钛和锆铌基体上微弧沉积磷酸钙涂层的物理、化学和生物学性能进行了对比研究。钛上的磷酸钙涂层具有更高的表面密度、孔隙率和孔径，以及更均匀的表面形貌。在相同条件下，磷酸钙涂层表面形貌起伏较大，但其表面密度、孔隙率和孔径均较小。涂层的X射线衍射表明，钛上的涂层是X射线无定形的，而锆-铌上的涂层由结晶CaZr 4（PO 4）（6）、ZrP 2 O 7和ZrO 2的混合物组成。这些差异是由于不同的电和热物理特性的基板及其表面上的钝化膜。通过体外细胞培养实验表明涂层具有生物相容性。
A comparative investigation of the physical, chemical and biological properties of micro-arc deposited calcium phosphate coatings on titanium and zirconium-niobium substrates was performed. Calcium phosphate coatings on titanium have a higher surface density, porosity and pore size, and a more homogeneous surface topography. Under the same conditions, calcium phosphate coatings on zirconium-niobium have a relief topography, but their surface density, porosity and pore size were all smaller. X-ray diffraction of the coatings showed that the coatings on titanium were X-ray amorphous whereas the coatings on zirconium-niobium consisted of a mixture of crystalline CaZr4(PO4)(6), ZrP2O7, and ZrO2. These differences are due to different electrical and thermophysical characteristics of substrates and passivating films on their surfaces. The coatings were shown to be biocompatible by in-vitro cell culture experiments.