无机材料学报2000，Vol.15Issue(5)：952-956,5.
等离子喷涂羟基磷灰石涂层的材料学特征
Characterization of Plasma Sprayed Hydroxyapatite Coating
摘要
Abstract
In the experiment, hydroxyapatite coatings were obtained by using vacuum plasma spraying system. XRD and SEM were used to estimate the as received coating. The results indicated that, both amorphorization and thermal decomposition of hydroxyapatite took place in the process of plasma spraying. Amorphous phase was formed due to rapid cooling of the melted hydroxyapatite droplet. The thermal instability of hydroxyapatite at temperature 13001400C caused a decomposition of HA powder into CaO and TCP. A rough-surfaced coating was obtained by plasma spraying. Pores and microcracks were observed as the characteristics of as received coating. A sintering process between the splats occurred in the process, which was caused by the degradation of thermal exchange property between coating and titanium substrate.关键词
等离子喷涂/羟基磷灰石/涂层/显微结构Key words
plasma spray/hydroxyapatite/coating/microstructure分类
化学化工引用本文复制引用
常程康,朱然怡,毛大立,吴建生,丁传贤..等离子喷涂羟基磷灰石涂层的材料学特征[J].无机材料学报,2000,15(5):952-956,5.基金项目
上海市启明星计划资助(98QE14031) （98QE14031）
