Abstract
To better understand thermal strain in electrochemical ceramics, the temperature and oxidation‐state dependence of lattice volume in La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) were measured. Large values in the apparent thermal expansion coefficient at high temperature (>50 ppm/°C) were caused by changes in oxygen content, not increases in thermal expansivity. This material can be described using an improved thermodynamic formalism that incorporates a new physical property, the chemical expansivity. Our approach opens new avenues for modeling stress and strain in materials, probing defect structure, and analyzing transport and kinetic properties.
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Dates
Type | When |
---|---|
Created | 15 years, 1 month ago (July 24, 2010, 2:24 a.m.) |
Deposited | 1 year, 9 months ago (Nov. 22, 2023, 9:18 p.m.) |
Indexed | 2 weeks, 6 days ago (Aug. 5, 2025, 8:33 a.m.) |
Issued | 23 years, 11 months ago (Sept. 1, 2001) |
Published | 23 years, 11 months ago (Sept. 1, 2001) |
Published Online | 20 years, 8 months ago (Dec. 20, 2004) |
Published Print | 23 years, 11 months ago (Sept. 1, 2001) |
@article{Adler_2001, title={Chemical Expansivity of Electrochemical Ceramics}, volume={84}, ISSN={1551-2916}, url={http://dx.doi.org/10.1111/j.1151-2916.2001.tb00968.x}, DOI={10.1111/j.1151-2916.2001.tb00968.x}, number={9}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={Adler, Stuart B.}, year={2001}, month=sep, pages={2117–2119} }