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Abstract No.: |
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Title: |
Effect of feedstock powder characteristics on microstructure and mechanical properties of lanthanum silicate coatings deposited by atmospheric plasma spraying
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Authors: |
Hanlin Liao* / LERMPS - UTBM, France Wei Gao / LERMPS, University of Technology of Belfort-Montbéliard, France Christian Coddet/ LERMPS, University of Technology of Belfort-Montbéliard, France
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Abstract: |
The apatite-type lanthanum silicate films were successfully synthesized by modified atmosphere plasma spraying using lanthanum oxide and silicon oxide mixed powders and precalcined hypereutectic powders in the size range 1-3 ìm and 5-8 ìm, respectively, as starting feedstock materials. The films differed not only in microstructural scale, but also in the characteristic of the degree of film densification. A detail describing the evolution of microstructure has been discussed. A considerable improvement in densification of the La10(SiO4)6O3 electrolyte films has been observed.
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