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Chemical Mechanisms Contributing to Wear of Single‐Crystal Sapphire on Steel
Author(s) -
BROWN W. R.,
EISS N. S.,
McADAMS H. T.
Publication year - 1964
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.1151-2916.1964.tb14383.x
Subject(s) - sapphire , materials science , metallurgy , pyrometer , oxide , scanning electron microscope , crystal (programming language) , debris , diffraction , single crystal , electron microscope , composite material , crystallography , optics , chemistry , geology , laser , oceanography , physics , temperature measurement , quantum mechanics , computer science , programming language
Chemical mechanisms which could be active in the wear process are reviewed. Identification of mechanisms present in the wear of single‐crystal sapphire spheres on steel has been attempted by examining worn surfaces and wear debris with the electron microscope. The reaction of iron oxide with aluminum oxide is confirmed by electron and X‐ray diffraction of the debris removed from the steel. The variation of instantaneous interface temperatures as detected by radiation pyrometry was correlated with the location of the wear debris on the wear track.