Processing and electrical properties of alkaline earth-doped lanthanum gallate

J. W. Stevenson, T. R. Armstrong, D. E. McCready, L. R. Pederson, W. J. Weber

Research output: Contribution to journalArticle

158 Citations (Scopus)

Abstract

Alkaline earth-doped lanthanum gallate powders were prepared by glycine/nitrate combustion synthesis. Compacts of powders synthesized under fuel-rich conditions were sintered to densities greater than 97% of theoretical. Appropriate doping with Sr or Ba on the A-site of the perovskite structure, and Mg on the B-site, resulted in oxygen ion conductivity higher than that of yttria-stabilized zirconia (YSZ), and high ionic transference numbers. Doping with Ca and Mg resulted in lower conductivity than YSZ. Thermal expansion coefficients of the doped gallates were higher than that of YSZ.

Original languageEnglish
Pages (from-to)3613-3620
Number of pages8
JournalJournal of the Electrochemical Society
Volume144
Issue number10
Publication statusPublished - Oct 1997
Externally publishedYes

Fingerprint

gallates
Lanthanum
Yttria stabilized zirconia
yttria-stabilized zirconia
lanthanum
Electric properties
Earth (planet)
electrical properties
Powders
Processing
Doping (additives)
combustion synthesis
Combustion synthesis
low conductivity
glycine
oxygen ions
Nitrates
Perovskite
Glycine
Thermal expansion

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Stevenson, J. W., Armstrong, T. R., McCready, D. E., Pederson, L. R., & Weber, W. J. (1997). Processing and electrical properties of alkaline earth-doped lanthanum gallate. Journal of the Electrochemical Society, 144(10), 3613-3620.

Processing and electrical properties of alkaline earth-doped lanthanum gallate. / Stevenson, J. W.; Armstrong, T. R.; McCready, D. E.; Pederson, L. R.; Weber, W. J.

In: Journal of the Electrochemical Society, Vol. 144, No. 10, 10.1997, p. 3613-3620.

Research output: Contribution to journalArticle

Stevenson, JW, Armstrong, TR, McCready, DE, Pederson, LR & Weber, WJ 1997, 'Processing and electrical properties of alkaline earth-doped lanthanum gallate', Journal of the Electrochemical Society, vol. 144, no. 10, pp. 3613-3620.
Stevenson JW, Armstrong TR, McCready DE, Pederson LR, Weber WJ. Processing and electrical properties of alkaline earth-doped lanthanum gallate. Journal of the Electrochemical Society. 1997 Oct;144(10):3613-3620.
Stevenson, J. W. ; Armstrong, T. R. ; McCready, D. E. ; Pederson, L. R. ; Weber, W. J. / Processing and electrical properties of alkaline earth-doped lanthanum gallate. In: Journal of the Electrochemical Society. 1997 ; Vol. 144, No. 10. pp. 3613-3620.
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