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Growth behaviors of ZnO nanostructure on SMAT Cu0.62Zn0.38 during oxidation

Published online by Cambridge University Press:  30 April 2013

Jun Peng Wang
Affiliation:
School of Materials Science & Engineering, Henan University of Science & Technology, Luoyang, Henan, PR. China
Chun Hua Xu*
Affiliation:
School of Materials Science & Engineering, Henan University of Science & Technology, Luoyang, Henan, PR. China
Zhen Biao Zhu
Affiliation:
School of Materials Science & Engineering, Henan University of Science & Technology, Luoyang, Henan, PR. China
Chun Sheng Wen
Affiliation:
Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong, P.R. China
Jian Lu
Affiliation:
Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong, P.R. China
San Qiang Shi
Affiliation:
Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong, P.R. China
*
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Abstract

Cu0.62Zn0.38 foil was subjected to surface mechanical attrition treatment (SMAT) processing first. Growth behavior of ZnO nanostructure on the SMAT Cu0.62Zn0.38 surface during thermal oxidation was investigated in this paper. The original and SMAT Cu0.62Zn0.38 foils were thermally oxidized at 400 ~ 700 °C under various gaseous environments, including nitrogen and mixture of N2-O2 at a pressure of 1 atm. for 3 h. The oxidized specimens were characterized with a scanning electron microscope, an X-ray diffractometer and a transmission electron microscope. It is found that nanosheets are easily formed on the SMAT specimen surface. The favorable formation of nanosheets relates to twin lamellae structure of Cu0.62Zn0.38 formed during SMAT processing.

Type
Research Article
Copyright
© EDP Sciences, 2013

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