Characterisation and corrosion properties of novel hydroxyapatite niobium plasma sprayed coating
Characterisation and corrosion properties of novel hydroxyapatite niobium plasma sprayed coating
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DOI：
10.1179/026708408x341214
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发表时间：
2009-05
影响因子：
2.8
通讯作者：
M. Enayati;Mohammadhossein Fathi;A. Zomorodian
中科院分区：
文献类型：
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作者：
M. Enayati;Mohammadhossein Fathi;A. Zomorodian
为了改善316 L不锈钢的耐蚀性和功能相容性，在316 L不锈钢基体上制备了一种新型的羟基磷灰石铌（HA-Nb）复合涂层。在400、600和800 A的电流强度下通过空气等离子喷涂施加HA-Nb涂层。利用X射线衍射和扫描电子显微镜技术研究涂层的特性。通过电化学极化测试评价了其在林格溶液中的腐蚀性能。结果表明，在316L不锈钢基体上沉积HA-Nb复合涂层的最佳电流强度为600 A。复合涂层提高了316 L不锈钢基体的耐腐蚀性，并表现出良好的结构性能，从而提高了316 L不锈钢基体的生物相容性。
A novel hydroxyapatite niobium (HA–Nb) composite coating was deposited on 316L SS substrate to improve the corrosion properties and functional compatibility of 316L SS alloy. HA–Nb coatings were applied by air plasma spray under electrical current intensities of 400, 600 and 800 A. X-ray diffraction and scanning electron microscopy techniques were utilised to investigate the characteristics of coatings. Corrosion properties were evaluated by electrochemical polarisation test in Ringer solution. Results indicated that optimum electrical current intensity for deposition of the HA–Nb composite coating on 316L SS substrate was 600 A. The composite coating improved corrosion resistance and exhibited good structural properties which in turn increased biocompatibility of 316L SS substrate.