Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
-A Rapid Communication Note of the 61th Japan Conference on Materials Environments-
Corrosion Resistance of Y2Ti2O7 Coating on Molten Aluminum Filter
Masato NagasakaMichiyuki YoshidaOsamu SakuradaMakoto TanakaSatoshi KitaokaOsamu Yamakawa
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2015 Volume 64 Issue 6 Pages 240-243

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Abstract

Rigid Media Tube Filters (RMF) bonded to coarse-grained alumina by aluminum borate reaction bond layer (9Al2O3・2B2O3; 9A2B) are used to remove solid impurities from the molten aluminum. Molten aluminum corrodes the 9A2B bond layer. To improve corrosion resistance of the RMF, we examined yttrium titanate (Y2Ti2O7; YT) coating using YT aqueous precur sorsolution. As results of the corrosion resistance evaluation of the filters in the molten aluminum, 9A2B bond layer of the coarse alumina was corroded about 2 weeks, but that 5 coats of YT remained for over 4 weeks.

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© 2015 Japan Society of Corrosion Engineering
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