Sintering of lanthanum chromite using strontium vanadate

Small proportions (5 and 10 wt.%) of strontium vanadate (Sr 3(VO 4) 2) were added to strontium-doped lanthanum chromite (La 0.85Sr 0.15CrO 3) to produce high density fuel cell interconnect materials in air at 1550°C without adversely affecting the desirable properties of the material. Compositions i...

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Bibliographic Details
Published in:Solid state ionics 2000-02, Vol.128 (1), p.53-63
Main Authors: Simner, S.P, Hardy, J.S, Stevenson, J.W, Armstrong, T.R
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
Lanthanum chromite
Liquid phase sintering
Properties
Strontium vanadate
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Summary:Small proportions (5 and 10 wt.%) of strontium vanadate (Sr 3(VO 4) 2) were added to strontium-doped lanthanum chromite (La 0.85Sr 0.15CrO 3) to produce high density fuel cell interconnect materials in air at 1550°C without adversely affecting the desirable properties of the material. Compositions investigated were shown to have good electrical conductivity at SOFC operating temperatures in air and reducing environments, phase stability from room temperature to 1000°C, negligible thermal expansion mismatch with yttria-stabilized zirconia electrolytes and relatively low dilation at pO 2 10 −16 atm.
ISSN:0167-2738
1872-7689
DOI:10.1016/S0167-2738(99)00310-0