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Influence of Copper Ions on Adherence of Vitreous Coatings to Stainless Steel
Author(s) -
MOORE D. G.,
EUBANKS A. G.
Publication year - 1956
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.1151-2916.1956.tb15603.x
Subject(s) - copper , materials science , metallurgy , oxide , coating , corrosion , ingot , metal , composite material , alloy
An investigation was made of the effect of copper oxide in promoting the adherence of vitreous coatings to AISI type 321 stainless steel. It was found that copper ions in the coating produced a significant increase in adherence on both pickled and sandblasted surfaces but that the effect of the copper decreased with increased firing temperature and increased firing time for the pickled specimens. X‐ray examination of specimens revealed that the copper ions were reduced to metallic copper near the interface during firing; however, examination of sections with the metallographic microscope showed no selective corrosion of the stainless‐steel surface. It was observed that the curve obtained when plotting the copper oxide content of the coating against the adherence index was of the same type as that obtained for cobalt oxide on ingot iron.