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在钛合金表面上预涂复CaHPO4·2H2O-CaCO3-Y2O3混合粉末，随后进行激光熔覆处理，获得了以TC4为基材的含HA的生物陶瓷涂层复合材料研究稀土元素对涂层性能的影响结果表明，Y2O3能明显改善涂层材料的综合力学性能、耐蚀性能和生物性能
The composite powder of CaHPO4 · 2H2O-CaCO3-Y2O3 was precoated on the surface of titanium alloy and then laser cladded to obtain the TC4-based HA-containing bioceramic composite. The effects of rare earth elements on the coating properties The results show that, Y2O3 can significantly improve the overall mechanical properties of coatings, corrosion resistance and biological properties