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http://dx.doi.org/10.7234/kscm.2011.24.4.011

Inherent and Interfacial Evaluation of Fibers/Epoxy Composites by Micromechanical Tests at Cryogenic Temperature  

Kwon, Dong-Jun (경상대학교 나노.신소재공학부)
Wang, Zuo-Jia (경상대학교 나노.신소재공학부)
Gu, Ga-Young (경상대학교 나노.신소재공학부)
Um, Moon-Gwang (경상대학교 나노.신소재공학부)
Park, Joung-Man (경상대학교 나노.신소재공학부)
Publication Information
Composites Research / v.24, no.4, 2011 , pp. 11-16 More about this Journal
Abstract
Retention of interfacial shear strength (IFSS) of polymer composites at cryogenic temperature application is very important. In this work, single carbon tiber reinforced epoxy compositc was used to evaluate IFSS and apparent modulus under room and cryogenic temperatures. The property change of carbon and selected epoxy for particularly cryogenic temperature application were tested in tension and compression. Tensile strength and elongation of carbon fiber decreased at cryogenic temperature, whereas tensile modulus was almost same. On the other hand, epoxy matrix showed the increased tensile strength but decreased elongation. It can be due to maximum thermal contraction existing free volume in cryogenic temperature. IFSS increased up to $-10^{\circ}C$ and then decreased steadily. However, IFSS at cryogenic temperature was still similar to that at room temperature. This result is very useful to cryogenic application since selected epoxy toughness and interfacial adhesion can keep at such low temperature.
Keywords
Cryogenic; Interfacial shear strength; Interfacial property; Electro-micromechanical test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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