%0 Journal Article
%T Plasma Sprayed HA/TiO2 Composite Coatings<br>等离子喷涂HA/TiO2复合涂层
%A ZHENG Xue-Bin
%A ZHOU Xia-Ming
%A ZHANG Ye-Fang
%A DING Chuan-Xian
%A <br>郑学斌
%A 周霞明
%A 张叶方
%A 丁传贤
%J 无机材料学报
%D 1999
%I Science Press
%X HA/TiO2 composite coatings were fabricated successfully via atmospheric plasma spraying, whose bonding strength, microstructure and surface mophology after immersion in deionized water were investigated. The obtained results reveal that the bonding strengthes of HA/TiO2composite coatings are much higher than that of HA coating and the fracture mechanism of the coating changes from adhesive failure to cohesive failure owing to the addition of TiO2 in the coating. The reason for this is the addition of TiO2 in the coating reduces the mismatch of thermal expansion coefficient between the coating and the substrate. SEM obeservation shows that there are some micro cracks in the composite coatings which disappear after immersion in deionized water for a day, and almost no new cracks generate again. This means that both the adhesive strength and the cohesive strength are improved by the addition of TiO2 in the coating.
%K HA coating
%K TiO_2
%K bonding strength
%K plasma spraying<br>HA涂层
%K 强度
%K 等离子喷涂
%K 喷涂
%K 二氧化钛
%K 涂层
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=F41F9B38173626FA&yid=B914830F5B1D1078&vid=F3583C8E78166B9E&iid=B31275AF3241DB2D&sid=7A7A8B1000B9FF84&eid=CFC2B32D03D9F610&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=6&reference_num=18