Issue 10, 2015
From the journal:

New Journal of Chemistry

Rapid early formation and crystal refinement of chemical conversion hopeite coatings induced by substrate sandblasting

Xian Zhang,ab   Gui-yong Xiao,ab   Xing-chuan Zhao,ab   Kun He,ab   Wen-hua Xuab  and  Yu-peng Lu*ab  

* Corresponding authors

a Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, China
E-mail: biosdu@sdu.edu.cn
Fax: +86-0531-88395966
Tel: +86-0531-88395966

b School of Materials Science and Engineering, Shandong University, Jinan, China

Abstract

Hopeite coatings have attracted more attention recently, because of their corrosion resistance and functional properties. In this research, the influence of sandblasting on the microstructure, phase and electrochemical behavior of hopeite coatings are discussed. It is shown that both coatings formed on sandblasted (SB) and non-sandblasted (NSB) substrates are composed of hopeite and minor phosphophyllite. Sandblasting treatment significantly decreases the crystal size and increases the coating mass within a PCC period of 30 min. The electrochemical analysis reveals that the sandblasting treatment of the substrate can significantly improve the corrosion resistance of the samples in 0.9 wt% sodium chloride solution. An adhesive test indicated that the PCC coating was strongly attached on the substrate.

Graphical abstract: Rapid early formation and crystal refinement of chemical conversion hopeite coatings induced by substrate sandblasting

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Article information

DOI
https://doi.org/10.1039/C5NJ01386K
Article type
Paper
Submitted
02 Jun 2015
Accepted
27 Jul 2015
First published
27 Jul 2015

New J. Chem., 2015,39, 7942-7947

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Rapid early formation and crystal refinement of chemical conversion hopeite coatings induced by substrate sandblasting

X. Zhang, G. Xiao, X. Zhao, K. He, W. Xu and Y. Lu, New J. Chem., 2015, 39, 7942 DOI: 10.1039/C5NJ01386K

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