无机材料学报2001，Vol.16Issue(3)：515-521,7.
生物活性钛涂层
Bioactivity of Titanium Coating
石建民 1丁传贤 1吴益华2
作者信息
- 1. 中国科学院上海硅酸盐研究所,
- 2. 上海交通大学化学化工学院,
- 折叠
摘要
Abstract
Vacuum plasma sprayed Ti coatings were chemically treated with 5.0mol/L NaOH at 40℃ for 24h and immersed into two kinds of simulated physiological solutions containing Ca2+, HPO2 4- ions. The surface morphologies and compositions of Ti coating before and after alkali treatment were examined by SEM and AES respectively. The formation layers on the Ti coating after immersion in FCS and SBF were characterized by SEM, EDS, XRD and FT-IR. The changes of ion concentration and pH value of FCS after immersion were measured by ICP-AES and pH meter. The results obtained indicate that the fibrous and net-like surface structure forms on the surface of porous Ti coating by treatment of NaOH solution.which consists of Na, Ti and O element with the atom ratio nearly equal to that of Na2TiOa. After immersion in simulated physiological solutions, the treated Ti coating shows apatite-forming ability and the apatite formed in FCS is oriented crystallized, plate-like HA with trace of OCP whereas the apatite precipitated in SBF is needle-like carbonate-containing hydroxyapatite. The bioactivity of the alkali treated Ti coatings can be explained in terms of the formation of hydrated titanate which can induced apatite nucleation and growth in FCS and SBF.关键词
钛涂层/生物活性/羟基磷灰石/氢氧化纳处理分类
通用工业技术引用本文复制引用
石建民,丁传贤,吴益华..生物活性钛涂层[J].无机材料学报,2001,16(3):515-521,7.
