The effect of heat treatment temperature on the interfacial shear strength of C/C composites

Soydan Ozcan; Jale Tezcan; Bijay Gurung; Peter Filip

doi:10.1007/s10853-010-4793-9

The effect of heat treatment temperature on the interfacial shear strength of C/C composites

Soydan Ozcan, Jale Tezcan, Bijay Gurung, Peter Filip

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

12 Scopus citations

Abstract

This paper investigates the effect of heat treatment temperature on the interfacial shear strength (IFSS) of carbon/carbon composites reinforced with polyacrylonitrile-based fibers. A series of single fiber push-out tests were performed on specimens heat treated at 1800, 2100, and 2400 °C, using a nanoindenter with a flat ended conical tip. The microstructure was characterized using polarized light and transmission electron microscopy and the debonded fiber/matrix interface was examined using scanning electron microscopy. Wavelet analysis of the load-displacement data was used as an additional tool to investigate the initiation and progression of debonding. Compared to 1800 °C, heat treatment at 2400 °C was associated with a decrease in IFSS, from 12 to 7 MPa. Transmission electron microscopy study showed that the microstructure of the fiber/matrix interphase remained amorphous even with heat treatment at 2400 °C. The decrease in the IFSS can be partly attributed to the reorganization of the graphene sheets in the matrix in the vicinity of fiber/matrix interphase. The thermal expansion mismatch between fiber and pyrocarbon matrix is another possible reason for the observed decrease in the IFSS.

Original language	English
Pages (from-to)	38-46
Number of pages	9
Journal	Journal of Materials Science
Volume	46
Issue number	1
DOIs	https://doi.org/10.1007/s10853-010-4793-9
State	Published - Jan 2011
Externally published	Yes

Funding

Acknowledgement This research was sponsored by the National Science Foundation (Grant EEC 3369523372), State of Illinois and a consortium of 11 industrial partners of the Center for Advanced Friction Studies (http://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 U.S. Department of Energy under grant DEFG02-91-ER45439.

Funders	Funder number
Center for Advanced Friction Studies
State of Illinois
National Science Foundation	EEC 3369523372
U.S. Department of Energy	DEFG02-91-ER45439

Access to Document

10.1007/s10853-010-4793-9

Cite this

@article{b0a8563d7c9c4f548003735a84a3d093,

title = "The effect of heat treatment temperature on the interfacial shear strength of C/C composites",

abstract = "This paper investigates the effect of heat treatment temperature on the interfacial shear strength (IFSS) of carbon/carbon composites reinforced with polyacrylonitrile-based fibers. A series of single fiber push-out tests were performed on specimens heat treated at 1800, 2100, and 2400 °C, using a nanoindenter with a flat ended conical tip. The microstructure was characterized using polarized light and transmission electron microscopy and the debonded fiber/matrix interface was examined using scanning electron microscopy. Wavelet analysis of the load-displacement data was used as an additional tool to investigate the initiation and progression of debonding. Compared to 1800 °C, heat treatment at 2400 °C was associated with a decrease in IFSS, from 12 to 7 MPa. Transmission electron microscopy study showed that the microstructure of the fiber/matrix interphase remained amorphous even with heat treatment at 2400 °C. The decrease in the IFSS can be partly attributed to the reorganization of the graphene sheets in the matrix in the vicinity of fiber/matrix interphase. The thermal expansion mismatch between fiber and pyrocarbon matrix is another possible reason for the observed decrease in the IFSS.",

author = "Soydan Ozcan and Jale Tezcan and Bijay Gurung and Peter Filip",

year = "2011",

month = jan,

doi = "10.1007/s10853-010-4793-9",

language = "English",

volume = "46",

pages = "38--46",

journal = "Journal of Materials Science",

issn = "0022-2461",

publisher = "Springer",

number = "1",

}

TY - JOUR

T1 - The effect of heat treatment temperature on the interfacial shear strength of C/C composites

AU - Ozcan, Soydan

AU - Tezcan, Jale

AU - Gurung, Bijay

AU - Filip, Peter

PY - 2011/1

Y1 - 2011/1

N2 - This paper investigates the effect of heat treatment temperature on the interfacial shear strength (IFSS) of carbon/carbon composites reinforced with polyacrylonitrile-based fibers. A series of single fiber push-out tests were performed on specimens heat treated at 1800, 2100, and 2400 °C, using a nanoindenter with a flat ended conical tip. The microstructure was characterized using polarized light and transmission electron microscopy and the debonded fiber/matrix interface was examined using scanning electron microscopy. Wavelet analysis of the load-displacement data was used as an additional tool to investigate the initiation and progression of debonding. Compared to 1800 °C, heat treatment at 2400 °C was associated with a decrease in IFSS, from 12 to 7 MPa. Transmission electron microscopy study showed that the microstructure of the fiber/matrix interphase remained amorphous even with heat treatment at 2400 °C. The decrease in the IFSS can be partly attributed to the reorganization of the graphene sheets in the matrix in the vicinity of fiber/matrix interphase. The thermal expansion mismatch between fiber and pyrocarbon matrix is another possible reason for the observed decrease in the IFSS.

AB - This paper investigates the effect of heat treatment temperature on the interfacial shear strength (IFSS) of carbon/carbon composites reinforced with polyacrylonitrile-based fibers. A series of single fiber push-out tests were performed on specimens heat treated at 1800, 2100, and 2400 °C, using a nanoindenter with a flat ended conical tip. The microstructure was characterized using polarized light and transmission electron microscopy and the debonded fiber/matrix interface was examined using scanning electron microscopy. Wavelet analysis of the load-displacement data was used as an additional tool to investigate the initiation and progression of debonding. Compared to 1800 °C, heat treatment at 2400 °C was associated with a decrease in IFSS, from 12 to 7 MPa. Transmission electron microscopy study showed that the microstructure of the fiber/matrix interphase remained amorphous even with heat treatment at 2400 °C. The decrease in the IFSS can be partly attributed to the reorganization of the graphene sheets in the matrix in the vicinity of fiber/matrix interphase. The thermal expansion mismatch between fiber and pyrocarbon matrix is another possible reason for the observed decrease in the IFSS.

UR - http://www.scopus.com/inward/record.url?scp=78650746243&partnerID=8YFLogxK

U2 - 10.1007/s10853-010-4793-9

DO - 10.1007/s10853-010-4793-9

M3 - Article

AN - SCOPUS:78650746243

SN - 0022-2461

VL - 46

SP - 38

EP - 46

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 1

ER -

The effect of heat treatment temperature on the interfacial shear strength of C/C composites

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this