Reactive Coating of Zircon on Mullite and Mullite—Alumina Substrates |
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| Authors: | Maria A. Sainz Angel Caballero Jos S. Moya |
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| Affiliation: | Instituto de Cerámica y Vidrio, CSIS. 28500 Arganda delrey, Madrid, Spain;Instituto Ciencia de Materiales, CSIC. Madrid, Spain. |
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| Abstract: | A stable zirconia coating of 20–30 pm thickness on a mullite substrate with a different alumina/silica ratio was obtained by reactive coating of zircon. It is shown that the Al2O3/ SiO2 ratio of the mullite substrate drastically affects the morphology of the zirconia coating. The results are explained on the basis of the Al2O3–SiO2–ZrO2 phase equilibria. |
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