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Influence of Fiber Roughness on the Sliding Behavior of Sapphire Fibers in TiAl and Glass Matrices
Author(s) -
Mackin Thomas J.,
Yang Jingyu,
Warren Paul D.
Publication year - 1992
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.1151-2916.1992.tb04434.x
Subject(s) - sapphire , materials science , surface roughness , fiber , surface finish , composite material , displacement (psychology) , wavelength , glass fiber , surface (topology) , optics , optoelectronics , laser , geometry , psychology , physics , psychotherapist , mathematics
Push‐out experiments on sapphire fibers in both glass and γ‐TiAl matrices show a sinusoidal modulation in the load–displacement trace that is identical in wavelength to the surface roughness of the sapphire fibers. A model, presented in a previous paper, is used to describe the push‐out behavior, and is shown to agree with experiment. The results quantitatively validate the key role of fiber surface roughness during fiber sliding.