The Velocity of Oxidation of the Metals and the Structure of Coloured Oxide Films

Abstract

WHILE general opinion ascribes the appearance of temper colours to interference between the light reflected from the outer and inner surfaces of a coherent film of oxide, no very definite proof has hitherto been brought forward that this view is correct, and many opinions have been stated to the contrary. The observation of Mallock (Proc. Roy. Soc. 94A (1918), 566) that the colours are unaltered in hue and only diminished in intensity by grinding away the film, has appeared to many to be irreconcilable with the hypothesis that interference is the cause.

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BANGHAM, D., STAFFORD, J. The Velocity of Oxidation of the Metals and the Structure of Coloured Oxide Films. Nature 115, 83–84 (1925) doi:10.1038/115083a0

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