To develop high emissivity coatings on fibrous ceramic substrates with improved thermal resistance for reusable space systems, WSi2–MoSi2–Si–SiB6-borosilicate glass coatings were prepared on fibrous ZrO2 by slurry dipping and subsequent high temperature rapid sintering. A coating with 20 wt% WSi2 and 50 wt% MoSi2 presents optimal thermal stability with only 10.06 mg/cm2 mass loss and 4.0% emissivity decrease in the wavelength regime 1.27–1.73 μm after 50 h oxidation at 1773 K. The advantages of double phase metal-silicide coatings combining WSi2 and MoSi2 include improved thermal compatibility with the substrate and an enhanced glass-mediated self-healing ability.
%0 Journal Article
%1 shao2019improved
%A Shao, Gaofeng;
%A Lu, Yucao;
%A Hanaor, Dorian A. H.;
%A Cui, Sheng;
%A Jiao, Jian;
%A Shen, Xiaodong
%D 2019
%J Corrosion Science
%K ceramics emissivity heat protection shield space systems thermal
%P 233-246
%R 10.1016/j.corsci.2018.11.006
%T Improved oxidation resistance of high emissivity coatings on fibrous ceramic for reusable space systems
%U https://www.sciencedirect.com/science/article/pii/S0010938X1830605X
%V 146
%X To develop high emissivity coatings on fibrous ceramic substrates with improved thermal resistance for reusable space systems, WSi2–MoSi2–Si–SiB6-borosilicate glass coatings were prepared on fibrous ZrO2 by slurry dipping and subsequent high temperature rapid sintering. A coating with 20 wt% WSi2 and 50 wt% MoSi2 presents optimal thermal stability with only 10.06 mg/cm2 mass loss and 4.0% emissivity decrease in the wavelength regime 1.27–1.73 μm after 50 h oxidation at 1773 K. The advantages of double phase metal-silicide coatings combining WSi2 and MoSi2 include improved thermal compatibility with the substrate and an enhanced glass-mediated self-healing ability.
@article{shao2019improved,
abstract = {To develop high emissivity coatings on fibrous ceramic substrates with improved thermal resistance for reusable space systems, WSi2–MoSi2–Si–SiB6-borosilicate glass coatings were prepared on fibrous ZrO2 by slurry dipping and subsequent high temperature rapid sintering. A coating with 20 wt% WSi2 and 50 wt% MoSi2 presents optimal thermal stability with only 10.06 mg/cm2 mass loss and 4.0% emissivity decrease in the wavelength regime 1.27–1.73 μm after 50 h oxidation at 1773 K. The advantages of double phase metal-silicide coatings combining WSi2 and MoSi2 include improved thermal compatibility with the substrate and an enhanced glass-mediated self-healing ability.},
added-at = {2019-08-28T21:16:19.000+0200},
author = {Shao, Gaofeng; and Lu, Yucao; and Hanaor, Dorian A. H.; and Cui, Sheng; and Jiao, Jian; and Shen, Xiaodong},
biburl = {https://www.bibsonomy.org/bibtex/29475455dc997ed01346dc5580b88b171/dohan},
doi = {10.1016/j.corsci.2018.11.006},
interhash = {5e3efffd23d648acad9e4b71b3ec2f4b},
intrahash = {9475455dc997ed01346dc5580b88b171},
journal = {Corrosion Science},
keywords = {ceramics emissivity heat protection shield space systems thermal},
pages = {233-246},
timestamp = {2021-05-12T11:46:24.000+0200},
title = {Improved oxidation resistance of high emissivity coatings on fibrous ceramic for reusable space systems},
url = {https://www.sciencedirect.com/science/article/pii/S0010938X1830605X},
volume = 146,
year = 2019
}