期刊
SURFACE & COATINGS TECHNOLOGY
卷 203, 期 10-11, 页码 1488-1493出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2008.11.015
关键词
Electrocodeposition; FeZn alloy; Hydroxyapatite; Nanocomposites; Microhardness
资金
- Deutsche Forschungsgemeinschaft [BU 1200/10-1, 1200/14-1]
- European Cooperation [COST D33: STSM-03738]
We report on the preparation of composite films consisting of ultrafine hydroxyapatite (HAp) nanoparticles in a zinc-iron (ZnFe) matrix. The films have been prepared by electrocodeposition from an alkaline electrolyte containing pyrophosphate as complexing agent. The HAp nanoparticles, synthesized by chemical precipitation, feature a needle-like shape with a diameter of similar to 10 nm and a length similar to 100 nm. The effects of a variety of deposition conditions, viz. current density, pH, temperature and composition of the plating bath on the codeposition of HAp nanoparticles with ZnFe-alloys were investigated by evaluating the alloy composition, nanoparticle content, structure and microhardness of the composite coatings. The presence of HAp nanoparticles in the bath was found to increase the iron content in the alloy and decrease the current efficiency of the cathodic deposition. Furthermore, a distinct increase in the Vickers microhardness appeared as a result of the nanoparticle incorporation. (C) 2008 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据