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Communication dans un congrès
A comparison of microstructure and of thermal transport properties of yttria and ceria stabilized zirconia coatings deposited by suspension plasma spraying
Abstract : The single cathode plasma torch SG-100 was used to spray suspension prepared with the use of two kinds of commercial powders ZrO2+8 wt. % Y2O3 (8YSZ) and ZrO2 + 24 wt.% CeO2 + 2.5 wt.% Y2O3 (24CeYSZ). The suspensions were formulated using finely milled solid phase, water and ethanol. The operational spray parameters being the same for each powder were modified by changing: (i) spray distance; and (ii) torch scan linear speed. The coatings microstructures were analyzed with the use of optical and scanning electron microscopes as well as by X-ray diffraction. Their porosities were found with help of the image analysis of metallographically prepared cross-sections. Thermal diffusivity was measured with the use of commercial system LFA 447 NanoFlash® working at the temperatures limited to 300°C. The measurements were made with the use of the coatings sprayed on the steel substrate and a 2-layers numerical model was applied to determine thermal diffusity of the coatings. The obtained data were used to calculate thermal conductivity of stabilized zirconia coatings.
Littérature citée [4 références]
https://hal-unilim.archives-ouvertes.fr/hal-01102737
Contributeur : Lech Pawlowski <>
Soumis le : mardi 13 janvier 2015 - 15:08:14
Dernière modification le : mardi 24 novembre 2020 - 14:18:06
Archivage à long terme le : : vendredi 11 septembre 2015 - 06:39:16
Contributeur : Lech Pawlowski <>
Soumis le : mardi 13 janvier 2015 - 15:08:14
Dernière modification le : mardi 24 novembre 2020 - 14:18:06
Archivage à long terme le : : vendredi 11 septembre 2015 - 06:39:16
Fichier
Paper_ITSC_Pawel.pdf
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