A Zn-Ni coating with both high electrical conductivity and infrared emissivity prepared by hydrogen evolution method

被引：13

作者：

Guo, Jiacheng ^{[1
]}

Guo, Xingwu ^{[1
]}

Xu, Wenbin ^{[1
]}

Zhang, Zhicheng ^{[1
]}

Dong, Jie ^{[1
]}

Peng, Liming ^{[1
]}

Ding, Wenjiang ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy Net Forming, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2017年 / 402卷

基金：

中国国家自然科学基金;

关键词：

Zn-Ni coating; Infrared emissivity; Electrical conductivity; Porous structure; ELECTRODE MORPHOLOGIES; ELECTROCATALYSIS; ABSORBENCY;

D O I：

10.1016/j.apsusc.2017.01.053

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A Zn-Ni coating with both high electrical conductivity and infrared emissivity was prepared by hydrogen evolution method in order to satisfy the demand of thermal control in space. The maximum infrared emissivity of 0.91 was obtained, meanwhile the electrical resistivity is lower than 0.01 m Omega/cm. The infrared emissivity of the coating obtained from the experimental result is proportional to the projected area of pores per unit area in the coating. The addition of NH4SCN in the bath can obviously increase the projected area of pores per unit area in the coating and lead to the formation of NiO and ZnO compounds, which further increase the infrared emissivity of the coating. The porous hierarchical structure of Zn-Ni coating can further improve the infrared emissivity, and the infrared emissivity can be tuned by changing the projected area of pores in the coating. Based on the experimental results, a mathematical relationship between infrared emissivity and the projected area of pores per unit area is established. The bond strength and the mass of volatiles of the design of coatings satisfy the technical standard demanded by the satellites in space.(C) 2017 Elsevier B.V. All rights reserved.

引用

页码：92 / 98

页数：7

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