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Frequency Effects on Fatigue Behavior of a Silicon Carbide Fiber‐Reinforced Glass–Ceramic Composite (SiC/MAS)
Author(s) -
Ahn JoonMo,
Mall Shankar,
Ahn JoonMo
Publication year - 2009
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2008.02251.x
Subject(s) - materials science , silicon carbide , composite material , aluminosilicate , ceramic , tension (geology) , fiber , ceramic matrix composite , composite number , stress (linguistics) , matrix (chemical analysis) , carbide , compression (physics) , biochemistry , chemistry , linguistics , philosophy , catalysis
The effects of cyclic frequency on the fatigue behavior of silicon carbide (Nicalon) fiber‐reinforced glass–ceramic matrix (SiC/magnesium aluminosilicate (MAS)) were investigated. Tension–tension fatigue tests were conducted at two frequencies, 10 and 900 Hz, to establish stress versus cycles to failure ( S–N ) relationships. Cycles to failure at a given stress level decreased with an increase of the applied frequency. Analysis of damage mechanisms suggests that there was an enhancement of fiber/matrix interfacial bonding at the higher frequency due to the formation of SiO 2 from the reaction of oxygen species of the matrix with SiC of the fiber.