采用等离子喷涂技术,将硅灰石陶瓷沉积于钛合金基体表面,制备了硅灰石涂层,对涂层的工艺、结构和性能作了研究.在此基础上,又制备了硅灰石TiO2 复合涂层、硅灰石ZrO2 复合涂层和硅酸二钙涂层,并研究了它们的结构和性能.研究结果证实:等离子喷涂硅灰石涂层、硅酸二钙涂层以及W7T3、W3Z7、W7Z3三种复合涂层都具有良好的生物活性又与钛合金基体有较高的结合强度,是较有应用前途的骨替换候选材料 Wollastonite ceramic was deposited on the surface of titanium alloy substrate by plasma spray technique, wollastonite coating was prepared and the coating technology, structure and properties were studied.On this basis, wollastonite TiO2 Composite coating, wollastonite ZrO2 composite coating and dicalcium silicate coating, and their structure and properties were studied.The results show that: plasma spraying wollastonite coating, dicalcium silicate coating and W7T3, W3Z7 , W7Z3 three kinds of composite coatings have good biological activity and titanium alloy matrix has a higher bonding strength, is more promising bone replacement candidate material