人工晶体学报2018，Vol.47Issue(4)：744-749,6.
超音速火焰喷涂HA/Ti复合涂层组织与性能研究
Microstructure and Properties of High Velocity Oxy-Fuel Sprayed HA/Ti Composite Coatings
摘要
Abstract
Pure HA coating,30wt%HA/Ti and 70wt%HA/Ti coatings were prepared on 304 stainless steel substrate by high velocity oxy-fuel spray technology.The microstructure, phase composition and chemical structure of the coatings were investigated by scanning electron microscopy(SEM), X ray diffraction(XRD)and Fourier transform infrared spectrometer(FTIR), respectively.The bonding strength,Vickers microhardness and in vitro bioactivity of the coatings were analyzed.The experimental results show that the cross sections of the HA/Ti composite coatings was presents typical lamellated structure,a large number of spherical /flattened melting particles and broken the particles appear on the surface,a large number of Ti particles were oxidized,part HA particles were decomposed.The main phase of composite coating is HA and TiO,in addition to a small amount of TiO 2,CaTiO3,CaO,Ti andɑ-TCP.The addition of Ti particles was beneficial to improve the mechanical performance of composite coating.The bonding strength of 30wt% HA/Ti and 70wt% HA/Ti coatings are 46.3 MPa and 21.5 MPa respectively,the microhardness are 329 HV0.1and 198 HV0.1.The apatites with the spherical and needle-like shape were formed on coatings'surface after immersion in simulated body fluid for 7 days, indicating an excellent bioactivity of the composite coatings.关键词
HA/Ti复合涂层/超音速火焰喷涂/结合强度/生物性能Key words
HA/Ti composite coating/high velocity oxy-fuel spraying/bonding strength/bioactivity分类
矿业与冶金引用本文复制引用
邹岩龙,陈清宇,姚海龙,白小波,王芳,纪岗昌..超音速火焰喷涂HA/Ti复合涂层组织与性能研究[J].人工晶体学报,2018,47(4):744-749,6.基金项目
国家自然科学基金地区项目(51461022) （51461022）
九江市科技局基地和人才计划/杰出青年人才资助计划项目(2016.43[75]) （2016.43[75]）
江西省教育厅科学项目重点项目(GJJ161068) （GJJ161068）
