期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 15, 期 -, 页码 2439-2444出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2021.09.083
关键词
Nanoparticles; Conversion coating; Hopeite; Bonding strength; Corrosion resistance
资金
- National Natural Science Foundation of China [52002223]
- Natural Science Foundation of Jiangsu Province [BK20190208]
- Postdoctoral Research Foundation of China [2019M652378]
The addition of nano-scaled Si3N4 particles in the hopeite conversion coating on pure titanium can result in a finer and denser composite coating, which exhibits higher bonding strength and corrosion resistance.
The effect of nano-scaled Si3N4 particles on the microstructure, mechanical and electrochemical behavior of hopeite (Zn-3(PO4)(2)center dot 4H(2)O) conversion coating on pure titanium was investigated. Different concentrations of nanoparticles were dispersed into the phosphating bath to incorporate the process of coating deposition. The XRD results demonstrated that nano-Si3N4 were doped into the coatings without any decomposition or reaction with the hopeite phase. A finer and denser microstructure of the composite coating could be obtained at the addition of 0.5 g/L Si3N4 in comparison with the pure hopeite coating. Moreover, the composite coating presented a higher bonding strength and corrosion resistance related to the refinement of microstructure and filling of the embedded nanoparticles. It is suggested that the incorporation of nano-Si3N4 particles in conversion coating is a promising approach for performance optimization. (C) 2021 The Author(s). Published by Elsevier B.V.
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