Premium
High‐Temperature Mechanical Behavior of Fiber‐Reinforced Glass‐Ceramic‐Matrix Composites
Author(s) -
Mah T.,
Mendiratta M. G.,
Katz A. P.,
Ruh R.,
Mazdiyasni K. s.
Publication year - 1985
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.1151-2916.1985.tb15803.x
Subject(s) - composite material , materials science , ceramic matrix composite , brittleness , flexural strength , ultimate tensile strength , ceramic , oxidizing agent , aluminosilicate , fiber , glass fiber , matrix (chemical analysis) , cracking , biochemistry , chemistry , organic chemistry , catalysis
Lithium aluminosilicate glass‐ceramic‐matrix composites reinforced with Sic fibers were tested at 900° and 1000°C in flexural and tensile configurations. The composites showed severe thermomechanical degradation when tested in oxidizing atmospheres. This degradation was found to depend on oxygen partial pressure. For P o 2 ≳10 3 Pa the composites failed in a brittle fashion; a single crack initiated and propagated through the matrix and fibers. At lower P o2 , multiple matrix cracking was observed, and the fibers bridged the matrix cracks.