标题:
医用镁合金表面电沉积制备羟基磷灰石涂层Electrodeposition of Hydroxyapatite Coating on Magnesium Alloy for Biomaterial Application
作者:
彭忠东, 伊跃军, 曹雁冰, 杜柯, 胡国荣
关键字:
镁及其合金, 医用材料, 电沉积, 羟基磷灰石, 涂层Magnesium and Its Alloys; Biomedicine Materials; Electrodeposition; Hydroxyapatite; Coating
期刊名称:
《Hans Journal of Chemical Engineering and Technology》, Vol.2 No.2, 2012-04-19
摘要:
镁及其合金由于具有良好的生物学特性成为潜在的可生物降解的植入材料，但是其低的抗腐蚀能力会导致植入失败。在镁合金基体表面电沉积获得羟基磷灰石(HA)涂层用以改善镁合金的抗腐蚀能力。用扫描电子显微镜(SEM)、X射线衍射(XRD)、傅立叶红外分析(FTIR)等手段对涂层进行了表征。实验结果表明：电沉积的羟基磷灰石涂层呈现片状、针状，随着电压、时间的增加，涂层变厚，涂层的主要成分为HA，具有良好的耐腐蚀性能。
Magnesium and its alloys are potential biodegradable implant materials due to their attractive biological property. But their poor corrosion resistance may result in the sudden failure of the implants. The hydroxyapatite (HA) coating was electrodeposited on magnesium alloy surface to improve its corrosion resistance. Technique properties of coatings were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD) respectively and Fourier transform infrared spectrometry (FTIR). The results show that hydroxyapatite crystals are flakes and needles. The thickness of the coatings increases along with the increase of voltage and time. The main component of the coating is hy-droxyapatite, and shows good corrosion resistance performance.