An investigation of the microstructure/electrical conductivity relationship in In2O3-substituted LSGM

Kimpton, J, Randle, TH, Drennan, J and Auchterlonie, G (2001) An investigation of the microstructure/electrical conductivity relationship in In2O3-substituted LSGM. Materials Research Bulletin, 36 1-4: 639-649.


Author Kimpton, J
Randle, TH
Drennan, J
Auchterlonie, G
Title An investigation of the microstructure/electrical conductivity relationship in In2O3-substituted LSGM
Journal name Materials Research Bulletin   Check publisher's open access policy
Publication date 2001
Sub-type Article
DOI 10.1016/S0025-5408(01)00530-X
Volume number 36
Issue number 1-4
ISSN 0025-5408
Start page 639
End page 649
Total pages 11
Place of publication Oxford
Publisher Pergamon-Elsevier Science Limited
Collection year 2001
Language eng
Subject C1
780102 Physical sciences
291400 Materials Engineering
Abstract The effect of controlled In3+ substitution on to the B-site in the perovskite oxygen ion conductor La0.9Sr0.1Ga0.8Mg0.2O2.85 (LSGM) has been examined with a view to exploring the influence on oxygen ion conductivity. In combination with the electrical conductivity study, detailed microstructural analysis was used to verify the location of the substituting cation and to determine the nature of secondary phase formation. The indium species clearly substituted for Ga3+ on the B-site of the lattice and the electrical conductivity showed a gradual decrease as the In+3 content increased. The interpretation of this data was complicated by the formation of the secondary phases LaInO3 and LaSrGaO4. (C) 2001 Elsevier Science Ltd. All rights reserved.
Keyword Materials Science, Multidisciplinary
Oxides
Electron Microscopy
Ionic Conductivity
Microstructure
Perovskite-type Oxide
Ion Conductors
Ga
Q-Index Code C1

Document type: Journal Article
Sub-type: Article
Collection: Centre for Microscopy and Microanalysis Publications
 
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Created: Tue, 14 Aug 2007, 14:54:25 EST