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Thin films of tin oxide have been pyrolytically deposited on both bulk and evaporated aluminum surfaces. Using optical reflectance spectroscopy it is shown that the chemical stability of tin-oxide-coated aluminum is greatly improved compared to uncoated or anodized aluminum. Exposure to sulphuric acid and sodium hydroxide solutions left the tin-oxide-coated surfaces unaffected, while uncoated or anodized surfaces were completely dissolved in the solutions.
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Roos et al. (1991) studied this question.
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