论文部分内容阅读
通过在钛合金表面上预涂敷一定比例的ＣａＨＰＯ４·２Ｈ２Ｏ－ＣａＣＯ３混合粉末及相应的过渡层并进行激光熔覆处理，获得了以ＴＣ４为基的含羟基磷灰石（ＨＡ）的生物陶瓷涂层复合材料。同时研究了稀土元素的加入对于生物陶瓷涂层组织的影响。结果表明，Ｙ２Ｏ３不仅对涂层组织有细化作用，而且对激光合成ＨＡ有催化作用并能使ＨＡ相结构保持稳定。
A TC4-based hydroxyapatite (HA) -based bio-ceramic coating was obtained by precoating a certain proportion of CaHPO4.2H2O-CaCO3 mixed powder and the corresponding transition layer on the surface of the titanium alloy and laser cladding treatment Layer composite material. At the same time, the effects of rare earth elements on the microstructure of bioceramic coatings were also studied. The results show that Y2O3 can not only refine the coating structure but also catalyze the laser synthesis of HA and stabilize the HA phase structure.