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介绍在奥氏体型不锈钢基材上预置涂覆具有一定梯度的生物陶瓷粉末(HAP或CSHPO42H2O+CaCO3)的激光熔覆.经SEM,EDS,XRD分析表明,低输出功率、高扫描速率是获得激光生物陶瓷涂层的主要控制因素.预置涂覆CaCO3与CaH(PO4)2H2O混合粉末涂层,在大于常规方法合成HAP所需比例下,可激光合成含Ca5(PO4)3(OH)等生物活性陶瓷的复合涂层,且存在一定量非晶态的自由表面区.
This article describes the laser cladding of bioceramic powder (HAP or CSHPO42H2O + CaCO3) precoated on austenitic stainless steel substrate with a certain gradient. The results of SEM, EDS and XRD show that the low output power and high scan rate are the main control factors to get the laser bioceramic coating. Pre-coated with CaCO3 and CaH (PO4) 2H2O mixed powder coatings, the synthesis of HAP than the conventional method required ratio, the laser can be synthesized with Ca5 (PO4) 3 (OH) and other bioactive ceramic composite coating, and there A certain amount of amorphous free surface area.