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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Structural properties of plasma-sprayed zirconia-based electrolytes
Journal of Materials Science, Volume 23, No. 10, Year 1988
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Description
Zirconia-based electrolytes, stabilized either with yttrium oxide or calcium oxide, were prepared in 100 to 200 μm thick layers by plasma spraying and densified by high-temperature vacuum sintering. The structure and the microstructure were investigated by optical microscopy, scanning electron microscopy, X-ray diffraction and Raman spectroscopy. The results are compared with the data we obtained on the powders used for plasma spraying and on single crystals. In the zirconia-yttria system, dense and fully stabilized zirconia films with structural properties similar to the corresponding single crystals were obtained. On the other hand, cracks and deformations were observed on calcia-stabilized films. This phenomenon is explained by the dramatic increase of monoclinic phase content due to the preferential evaporation of calcium oxide which occurs during high-temperature vacuum sintering. © 1988 Chapman and Hall Ltd.
Authors & Co-Authors
Parmigiani, Fulvio
Italy, Segrate
Cise S.p.a.
Richon, Dominique
Switzerland, Geneva
Battelle Geneva Research Center
Statistics
Citations: 22
Authors: 2
Affiliations: 3
Identifiers
Doi:
10.1007/BF00540525
ISSN:
15734803