Measurement and analytical validation of interfacial bond strength of PAN-fiber-reinforced carbon matrix composites

Jale Tezcan; Soydan Ozcan; Bijay Gurung; Peter Filip

doi:10.1007/s10853-007-2333-z

Measurement and analytical validation of interfacial bond strength of PAN-fiber-reinforced carbon matrix composites

Jale Tezcan, Soydan Ozcan, Bijay Gurung, Peter Filip

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Carbon/carbon composites are well suited to high-friction applications due to their excellent mechanical and thermal properties. Since interfacial shear strength is critical to composite performance, characterization of fiber/matrix interface is a crucial step in tailored design of composites. This article presents a hybrid experimental/analytical study to evaluate the interfacial shear strength (IFSS) of PAN-fiber-reinforced carbon matrix composites. Microstructure was studied by light and high-resolution transmission electron microscopy (HRTEM). A series of push-out tests were conducted to examine the fiber/matrix debonding process. The residual fiber displacement was confirmed by scanning electron microcopy (SEM). The validity of the calculated IFSS value was demonstrated by a simplified analytical approach, where the components contributing to the measured displacement were analyzed considering the mechanics of the indentation. The method described in this article has been successfully used for determining the IFSS of PAN-fiber-reinforced carbon matrix composites.

Original language	English
Pages (from-to)	1612-1618
Number of pages	7
Journal	Journal of Materials Science
Volume	43
Issue number	5
DOIs	https://doi.org/10.1007/s10853-007-2333-z
State	Published - Mar 2008
Externally published	Yes

Funding

Acknowledgements This research was sponsored by National Science Foundation (Grant EEC 3369523372), State of Illinois and consortium of 11 industrial partners of Center for Advanced Friction Studies (http://www.frictioncenter.engr.siu.edu). The high-resolution TEM characterization was carried out at the Center for Microanalysis of Materials, University of Illinois, which is partially supported by the US Department of Energy under grant DEFG02-91-ER45439. The authors also acknowledge the contribution of Micro-imaging and Analysis Center at Southern Illinois University for assisting with the microscopy studies.

Funders	Funder number
US Department of Energy	DEFG02-91-ER45439
National Science Foundation	EEC 3369523372

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abstract = "Carbon/carbon composites are well suited to high-friction applications due to their excellent mechanical and thermal properties. Since interfacial shear strength is critical to composite performance, characterization of fiber/matrix interface is a crucial step in tailored design of composites. This article presents a hybrid experimental/analytical study to evaluate the interfacial shear strength (IFSS) of PAN-fiber-reinforced carbon matrix composites. Microstructure was studied by light and high-resolution transmission electron microscopy (HRTEM). A series of push-out tests were conducted to examine the fiber/matrix debonding process. The residual fiber displacement was confirmed by scanning electron microcopy (SEM). The validity of the calculated IFSS value was demonstrated by a simplified analytical approach, where the components contributing to the measured displacement were analyzed considering the mechanics of the indentation. The method described in this article has been successfully used for determining the IFSS of PAN-fiber-reinforced carbon matrix composites.",

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AB - Carbon/carbon composites are well suited to high-friction applications due to their excellent mechanical and thermal properties. Since interfacial shear strength is critical to composite performance, characterization of fiber/matrix interface is a crucial step in tailored design of composites. This article presents a hybrid experimental/analytical study to evaluate the interfacial shear strength (IFSS) of PAN-fiber-reinforced carbon matrix composites. Microstructure was studied by light and high-resolution transmission electron microscopy (HRTEM). A series of push-out tests were conducted to examine the fiber/matrix debonding process. The residual fiber displacement was confirmed by scanning electron microcopy (SEM). The validity of the calculated IFSS value was demonstrated by a simplified analytical approach, where the components contributing to the measured displacement were analyzed considering the mechanics of the indentation. The method described in this article has been successfully used for determining the IFSS of PAN-fiber-reinforced carbon matrix composites.

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Measurement and analytical validation of interfacial bond strength of PAN-fiber-reinforced carbon matrix composites

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