Sintering and mechanical characteristics of lanthanum strontium manganite

被引：51

作者：

Meixner, DL

Cutler, RA

机构：

[1] Ceramatec Inc, Salt Lake City, UT 84119 USA

[2] Air Prod & Chem Inc, Salt Lake City, UT 84119 USA

来源：

SOLID STATE IONICS | 2002年 / 146卷 / 3-4期

关键词：

lanthanum manganite; lanthanum strontium manganite; perovskite; oxygen nonstoichiometry; plastic deformation; creep; mechanical properties; SOFC;

D O I：

10.1016/S0167-2738(01)01027-X

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：

The sintering and mechanical characteristics of strontium-doped lanthanum manganites are increasingly important for both processing and device integration. A-site deficiency and reduced strontium fraction were shown to improve sinterability, High-strontium compositions displayed unusual mechanical properties, including unexpectedly low Young's modulus and fracture strength. In addition, plastic deformation of a fully dense LSM plate under modest loading was observed. This surprising and novel result may result from oxygen exchange with the LSM surface at elevated temperatures. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：273 / 284

页数：12

共 33 条

[1] Kinetics of oxidation of fuel cell cathode materials lanthanum strontium Manganates(III)(IV) at actual working conditions:: In situ powder diffraction studies [J].