Journal
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
Volume 103, Issue 3, Pages 207-212Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0921-5107(03)00179-X
Keywords
perovskite; electrical conductivity; YSZ reactivity; solid reaction
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The electrical conductivity and the yttria-stabilized zirconia (YSZ) reactivity of Y1-xSrxMnO3 (0 less than or equal to x less than or equal to 0.2) have been investigated. The electrical conductivities of Y1-xSrxMnO3 were between 0.003 and 12.5 S cm(-1). It has been proposed that the conductivities were affected by both Sr doping and oxygen interstitial. For the YSZ reactivity, mixtures of Y1-xSrxMnO3 and YSZ (with 8 mol.% yttria) have been annealed at 1200degreesC for 5 h in air. The formation of SrZrO3 and Zr3Y4O12 has been determined in the Y1-xSrxMnO3(x > 0)/YSZ systems. However, no reaction product was observed in the YMnO3/YSZ system. Different reaction mechanisms were thus derived for the Y1-xSrxMnO3(x > 0)/YSZ and the YMnO3/YSZ systems, respectively. (C) 2003 Elsevier B.V. All rights reserved.
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