Effects of sintering temperatures on the infrared emissivity of La0.7Sr0.3MnO3

被引：14

作者：

Zhang, Shuyuan ^{[1
]}

Cao, Quanxi ^{[1
]}

Ma, Xiaohua ^{[1
]}

Li, Zhimin ^{[1
]}

机构：

[1] Xidian Univ, Sch Tech Phys, Xian 710071, Shaanxi, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 18期

关键词：

Infrared emissivity; La0.7Sr0.3MnO3; Sintering temperatures; LANTHANUM MANGANITES; THIN-FILMS; RESISTIVITY; DEPENDENCE; GLASS; TIN; MN; CU;

D O I：

10.1016/j.apsusc.2012.03.160

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：

La0.7Sr0.3MnO3 powders were fabricated by the traditional solid state reaction at different temperatures. The crystal structure, infrared transmittance spectra, resistivity and infrared normal emissivity epsilon(N) in the range of 8-14 mu m were examined using different methods. Effects of sintering temperatures on the infrared emissivity were investigated. It is found that the emissivity of La0.7Sr0.3MnO3 powders decreased first and increased then with the sintering temperature's increase from 1273 K to 1523 K, and the lowest infrared emissivity was obtained when calcined at 1473 K. The trend of the variation of the infrared normal emissivity with sintering temperature's increase was opposite to that of crystallite size and similar to that of resistivity. (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：7036 / 7038

页数：3

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