摘要
研究通过简单的化学反应法在钛基体上制备羟基磷灰石(HA)涂层.钛板经粗糙化、酸蚀、清洗、干燥以后,在5 mol/L的NaOH溶液中60℃处理24 h,然后在饱和Ca(OH)2溶液中进行预钙化处理,接着在过饱和Ca3(PO4)2溶液中进行沉积处理,最后在0.1 mol/L的NaOH溶液中60℃对沉积层进行48 h的后处理,制得一定厚度的、Ca/P=1.67的羟基磷灰石涂层.用扫描电镜、能谱仪和X射线衍射仪对涂层进行显微组织观察、测定涂层厚度、并进行物相和元素分析.本研究对使用的各种溶液的浓度、处理温度和时间均进行了优化.
The objective of this research is to find a simple chemical method to prepare the hydroxyapatite coat- ing on the substrates of pure titanium. The titanium samples with ragged surface are eroded by acid and washed, and after drying, treated with 5 mol/L NaOH solution at 60℃ for 24 hours. Following the precalcific treatment in saturated Ca（OH） 2 solution and the depositing treatment in supersaturated Ca3 （PO4 ）2 solution, the deposited layer turns finally into the Ca/P = 1.67 hydroxyapatite of definite thickness in 0.1 mol/L NaOH solution at 60℃ for 48 hours. Using the scanning electron microscope, EDAX and X - ray diffractometer, microstructures of the coating are observed, the thickness determined and the phases and elements analyzed. The concentrations of the solutions, the processing temperatures and time are all optimized.
出处
《昆明理工大学学报（理工版）》
2005年第4期18-22,共5页
Journal of Kunming University of Science and Technology(Natural Science Edition)
关键词
羟基磷灰石
涂层
化学法
钛基
hydroxyapatite
coating
chemical method
Ti - based
