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Influence of Interfacial Sliding Stress on Fatigue Behavior of Oxidized Nicalon/Calcium Aluminosilicate Composites
Author(s) -
Thomas Warren A.,
Sanchez J. M.
Publication year - 1996
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.1151-2916.1996.tb09031.x
Subject(s) - materials science , calcium aluminosilicate , composite material , aluminosilicate , microstructure , stress (linguistics) , ultimate tensile strength , dissipation , composite number , chemistry , thermodynamics , biochemistry , linguistics , philosophy , physics , catalysis
The influence of the interfacial sliding stress on the steady‐state tensile fatigue behavior of a Nicalon/calcium aluminosilicate composite has been characterized experimentally. Characterization occurred in an experiment where the microstructure and properties of the carbon interface were altered by oxidation at increasingly greater temperatures. After each oxidation step, the steady‐state energy dissipation was quantified. Using a model, changes in the interfacial sliding stress were determined after each oxidation step. The results revealed a minimum in the sliding stress after oxidation in the temperature range of 100°‐300°C that corresponded to a maximum in the amount of energy dissipated by frictional sliding.