Molten silicate reactions with plasma sprayed ytterbium silicate coatings
نویسندگان
چکیده
منابع مشابه
Stresses in Ytterbium Silicate Multilayer Environmental Barrier Coatings
The internal stresses of plasma-sprayed multilayer ytterbium disilicate environmental barrier coatings were measured using microfocused high-energy X-rays in a transmission geometry. Stresses were measured for as-sprayed and ex-situ heat-treated ytterbium disilicate topcoats at room temperature and during in-situ heating and cooling experiments. In-situ loading experiments were also performed o...
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Environmental barrier coatings (EBCs) are needed to protect SiC structures exposed to high temperatures in water vapor-rich environments. Recent studies of a tri-layer EBC system consisting of a silicon layer attached to the SiC, a mullite diffusion barrier and a lowsteam volatility ytterbium silicate topcoat have shown some promise for use at temperatures up to 1316 C. However, the performance...
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• In a study of the optical properties of coactivated xuminescent glasses, CO c c r^ 2+ ^TJ3 + (1) J r ^,3+ XT,3+(2) , ^mr u ansfer of -nergy trom UO_ to Nd and troiTi Ce to Nd has been /-S 2 PMÜ observed and it has been shown that for both of these ion pairs this energ;' ^Jj^ lntcr(.■h>ln^^ is partly achieved by radiationless transfer mechanisms. In ^^ 3+ 3 + this paper the transfer of energy ...
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ژورنال
عنوان ژورنال: Surface and Coatings Technology
سال: 2016
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2015.12.053