Sintering of lanthanum chromite using strontium vanadate

Add time:08/13/2019    Source:sciencedirect.com

Small proportions (5 and 10 wt.%) of strontium vanadate (Sr3(VO4)2) were added to strontium-doped lanthanum chromite (La0.85Sr0.15CrO3) 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 pO2 10−16 atm.

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