摘要
采用亚音速火焰喷涂方法及涂层处理技术,以Ti6Al4V为基体喷涂不同粒度粉体,制备HA/BG生物活性涂层,并引入Ti/G过渡层缓解应力.涂层经700℃晶化处理.结果表明,粉体粒度决定了HA/BG涂层的组织结构.细小粉体可获得疏松、多孔结构的涂层,此种结构有利于涂层材料与骨组织之间结合.涂层经过700℃晶化处理后,主相为晶态HA,添加小粒度生物活性玻璃可抑制HA晶粒的长大.亚音速火焰方法制备的HA/BG生物涂层均呈现压应力,对于提高涂层结合强度起到积极意义.
HA/BG bioactive coatings were sprayed on Ti6Al4V substrate by subsonic flame spraying,and Ti/G coating was selected as transition player to relieve the stress in the coatings.HA/BG bioactive coatings underwent crystallization treatment at 700 ℃.The structure of the coatings was decided by the particle size.With fine particle,porous coatings can be obtained whose structure is beneficial to the bonding of the coatings and the bone tissue.After the crystallization treatment,the main phase of the HA/BG coatings was crystal HA,and the addition of fine active glass inhabited the growth of HA crystal.The compression stress exhibiting in HA/BG coatings was positive to improve the bonding strength of the coatings.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2011年第10期41-44,48,共5页
Transactions of The China Welding Institution
基金
黑龙江省自然科学基金资助项目(E0304)
佳木斯大学生物医学材料重点实验室项目(L5609)
黑龙江省教育厅资助项目(11553115)
关键词
亚音速火焰喷涂
生物活性玻璃
过渡层
粒度
subsonic flame spraying
bioglass
transition player
particle size
