Highly enhanced infrared spectral emissivity of porous CeO2 coating

被引：24

作者：

Huang, Jianping ^{[1
]}

Li, Yibin ^{[1
]}

Song, Guangping ^{[1
]}

Zhang, Xinjiang ^{[1
]}

Sun, Yue ^{[1
]}

He, Xiaodong ^{[1
]}

Du, Shanyi ^{[1
]}

机构：

[1] Harbin Inst Technol, Ctr Composite Mat & Struct, Harbin 150080, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 85卷

基金：

中国国家自然科学基金;

关键词：

Adhesion; Cerium oxide; Spectral emissivity; Physical vapor deposition; Porous materials; THERMAL-EXPANSION; VAPOR-DEPOSITION; ABSORPTION; TEXTURE; ALLOYS; FILMS; CERIA; NI;

D O I：

10.1016/j.matlet.2012.06.084

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A porous CeO2 coating was prepared by electron beam physical vapor deposition technique. The microstructure and infrared spectral emissivity in wavelength range 2.5 similar to 25 mu m were investigated. The surface morphology could be tuned by deposition power density. The as-deposited coating shows (311)-preferred orientation. The great enhancement of infrared spectral emissivity in the whole wavelength range was observed in the porous CeO2 coating, compared to a dense CeO2 coating. The porous surface structure provides multiple reflection and absorption, thus improves the spectral emissivity. Moreover, the CeO2 coating also shows excellent adhesion property to nickel-based alloy substrate. These results show a potential application at high temperature. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：57 / 60

页数：4

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