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Electrochemical Corrosion of Iron Magnesium Aluminate Spinel and Lanthanum Chromite in Molten Potassium Sulfate
Author(s) -
Kaiser Gregory A.,
Halloran John W.
Publication year - 1981
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1981.tb09532.x
Subject(s) - spinel , chromite , magnesium , molten salt , electrochemistry , inorganic chemistry , corrosion , potassium dichromate , potassium , lanthanum , materials science , aluminate , metallurgy , chemistry , electrode , cement
Iron magnesium aluminate spinel and lanthanum chromite specimens are unaffected by immersion in molten K 2 SO 4 in the absence of an electrical current, but are aggressively attacked in the presence of a direct current. Anodes are deteriorated by surface reactions, while cathodes are disintegrated due to enhanced salt penetration without gross chemical reactions.