Backscatter Electron Imaging and Electron Backscatter Diffraction Characterization of LaCoO3 During In Situ Compression

被引：2

作者：

Karlsen, Morten ^{[1
]}

Einarsrud, Mari-Ann ^{[1
]}

Lein, Hilde L. ^{[1
]}

Grande, Tor ^{[1
]}

Hjelen, J. ^{[1
]}

Vullum, Per Erik ^{[2
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, N-7491 Trondheim, Norway

[2] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2009年 / 92卷 / 03期

关键词：

OXIDE FUEL-CELLS; MECHANICAL-PROPERTIES; PHASE-TRANSFORMATIONS; THERMAL-PROPERTIES; PEROVSKITES; CERAMICS; LA0.8CA0.2COO3; LA1-XSRXCOO3-DELTA; FERROELASTICITY; MEMBRANES;

D O I：

10.1111/j.1551-2916.2009.02937.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ferroelastic domain reorientation in polycrystalline rhombohedral LaCoO3 has been demonstrated by backscatter electron (BSE) imaging and electron backscatter diffraction (EBSD) combined with in situ compression testing. Four different domain orientations were confirmed in line with expectation from crystallography. During in situ compression reorientation of domains were observed favoring domains with the c-axis close to perpendicular to the stress field. In situ compression combined with BSE/EBSD is shown to be an excellent tool for studying the influence of mechanical stress on grain/domain structure in polycrystalline ceramics.

引用

页码：732 / 737

页数：6

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