生物骨科材料与临床研究2013，Vol.10Issue(3)：15-18,23,后插4,6.DOI:10.3969/j.issn.1672-5972.2013.03.004
液相等离子喷涂羟基磷灰石涂层性能与工艺的研究
Research of the performance of hydroxyapatite coating and preparation technology by liquid precursor plasma spraying
摘要
Abstract
Objective Through researching the relationship between process and performance of coating,obtaining the optimal technological parameters about preparing hydroxyapatite coating by liquid precursor plasma spraying.Methods The critical technological parameters such as spraying power,transfer speed,spraying distance and atomizing pressure were optimized by orthogonal test and orthogonal analysis was done about the coating thickness and the degree ofcrystallinity.Then the coatings were characterized by XRD,FTIR and SEM.Result XRD analysis showed that the main phase of all coatings was HA,and there were a little TCP phases and CaO; FTIR analysis showed that there were a little CO32-groups in all coatings and some OH groups dropped offin some coatings; SEM observation showed that the No.3 coating deposited as unconsolidated particles,so the bonding strength was very low,the other coatings presented preferable splatting; orthogonal analysis showed that the influence of every factor for the performance of coatings:spraying distance ＞ atomizing pressure ＞ transfer speed ＞ spraying power,and obtained the optimal technological parameters.Conclusions The optimal technological parameters of preparing hydroxyapatite coating by liquid precursor plasma spraying was spraying power (45kw) + transfer speed (8) + spraying distance (10cm) + atomizing pressure (0.14mPa).关键词
液相等离子喷涂/羟基磷灰石涂层/正交实验/工艺优化Key words
Liquid precursor plasma spraying/ Hydroxyapatite coating/ Orthogonal test/ Process optimization分类
医药卫生引用本文复制引用
苏尧,黄涛,刘晓光,吴方..液相等离子喷涂羟基磷灰石涂层性能与工艺的研究[J].生物骨科材料与临床研究,2013,10(3):15-18,23,后插4,6.基金项目
国家自然科学基金(No.31170922) （No.31170922）
