以统计学析因设计分组,X射线衍射(XRD)仪进行物相分析,研究了激光快速成形工艺参数对生物陶瓷复合涂层物相组成的影响,并优选出适合生物陶瓷物相生成的工艺参数。结果表明,高功率下涂层中非生物陶瓷相CaO和CaTiO3占优势,低功率下生物陶瓷相磷酸三钙(TCP)大量存在,非生物陶瓷相CaO和CaTiO3消失,激光功率对涂层物相的种类和含量均有影响;高扫描速度(1500 mm/min)下涂层物相由TCP,CaO和CaTiO3组成,其中TCP的含量最大,随扫描速度降低,陶瓷相TCP的含量降低,非陶瓷相CaO和CaTiO3含量增加,扫描速度仅影响涂层物相的含量,而对物相的种类无影响。800 W+500 mm/min的工艺参数下制备的涂层中生物活性成分较多,因此比较适合制备生物陶瓷物复合涂层。

The method of statistics factorial experiment was applied on the experiment. X-ray diffraction (XRD) was used to characterize the phases in coatings. Proper technologic parameters were found by evaluating the effect of technologic parameters of laser rapid forming on phases of bioceramic coatings .The results showed that CaO and CaTiO3 were obtained with high laser power,while Ca3 (PO4)2(TCP) was obtained with low laser power. Laser power can not only affect the quantity of the phases in the coatings,but also their kinds. TCP was also obtained at high scanning velocity,while CaO and CaTiO3 were obtained at low scanning velocity. The scanning velocity can only affect the quantity of the phases in the coatings. When the laser power was 800 W and the scanning velocity was 500 mm/min,bioceramic coatings with more TCP can be obtained.