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Effect of aging on the compressive yielding of PAN‐based carbon fiber/polycarbonate composites
Author(s) -
Nofal M. M.,
Zihlif A. M.,
Ragosta G.,
Martuscelli E.
Publication year - 1996
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.10662
Subject(s) - materials science , composite material , polycarbonate , yield (engineering) , modulus , composite number , compressive strength , boiling , compression (physics) , physics , thermodynamics
The compressive yield behavior and the effect of aging in boiling water on the mechanical properties of polycarbonate composites reinforced with PAN‐based carbon fibers were studied at different filler contents and over a range of strain rates. The Young's modulus, yield stress, and yield strain are reported as a function of aging time. Other mechanical parameters such as the activation energy and volume of the yielding process were determined through the Eyring theory. The increase of both Young's modulus and yield stress with aging in boiling water is explained by structural changes. The mechanical properties of the composite were correlated with the morphology and its glass transition temperature.