Characterization of fiber/matrix interfaces using X-ray microtopography

Jay C. Hanan; C. Can Aydiner; Ersan Üstündag; Geoffrey A. Swift; Steffen K. Kaldor; I. Cevdet Noyan

doi:10.4028/www.scientific.net/msf.404-407.919

Characterization of fiber/matrix interfaces using X-ray microtopography

Jay C. Hanan, C. Can Aydiner, Ersan Üstündag^*, Geoffrey A. Swift, Steffen K. Kaldor, I. Cevdet Noyan

^*Corresponding author for this work

California Institute of Technology Division of Engineering and Applied Science

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

The structure and strength of fiber/matrix interfaces in fiber-reinforced composites are crucial in determining the overall mechanical behavior of these materials. To investigate the integrity and structure of such an interface on the microstructure scale, a model composite consisting of a single crystal Al₂O₃ fiber in an Al matrix was investigated with X-ray microdiffraction. The intensity of the (30.0) and (22.0) reflections of Al₂O₃ was monitored in topography mode using an X-ray beam focused by a tapered capillary to spot sizes ranging from 5 to 25 μm. Significant changes in this intensity revealed buried voids along a nominally intact interface. These changes also provided information about the distribution of residual stresses along the interface. The discussion includes advantages and some complications with this technique for measuring residual stresses in composites.

Original language	English
Pages (from-to)	919-924
Number of pages	6
Journal	Materials Science Forum
Volume	404-407
DOIs	https://doi.org/10.4028/www.scientific.net/msf.404-407.919
Publication status	Published - 2002
Externally published	Yes
Event	Proceedings of the 6th European Conference on Residual Stresses - Coimbra, Portugal Duration: 10 Jul 2002 → 12 Jul 2002

Keywords

Al-AlO composite
Metal matrix composites
Thermal residual stress
Topography
X-ray diffraction

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title = "Characterization of fiber/matrix interfaces using X-ray microtopography",

abstract = "The structure and strength of fiber/matrix interfaces in fiber-reinforced composites are crucial in determining the overall mechanical behavior of these materials. To investigate the integrity and structure of such an interface on the microstructure scale, a model composite consisting of a single crystal Al2O3 fiber in an Al matrix was investigated with X-ray microdiffraction. The intensity of the (30.0) and (22.0) reflections of Al2O3 was monitored in topography mode using an X-ray beam focused by a tapered capillary to spot sizes ranging from 5 to 25 μm. Significant changes in this intensity revealed buried voids along a nominally intact interface. These changes also provided information about the distribution of residual stresses along the interface. The discussion includes advantages and some complications with this technique for measuring residual stresses in composites.",

keywords = "Al-AlO composite, Metal matrix composites, Thermal residual stress, Topography, X-ray diffraction",

author = "Hanan, {Jay C.} and {Can Aydiner}, C. and Ersan {\"U}st{\"u}ndag and Swift, {Geoffrey A.} and Kaldor, {Steffen K.} and Noyan, {I. Cevdet}",

year = "2002",

doi = "10.4028/www.scientific.net/msf.404-407.919",

language = "English",

volume = "404-407",

pages = "919--924",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications Ltd",

note = "Proceedings of the 6th European Conference on Residual Stresses ; Conference date: 10-07-2002 Through 12-07-2002",

}

TY - JOUR

T1 - Characterization of fiber/matrix interfaces using X-ray microtopography

AU - Hanan, Jay C.

AU - Can Aydiner, C.

AU - Üstündag, Ersan

AU - Swift, Geoffrey A.

AU - Kaldor, Steffen K.

AU - Noyan, I. Cevdet

PY - 2002

Y1 - 2002

N2 - The structure and strength of fiber/matrix interfaces in fiber-reinforced composites are crucial in determining the overall mechanical behavior of these materials. To investigate the integrity and structure of such an interface on the microstructure scale, a model composite consisting of a single crystal Al2O3 fiber in an Al matrix was investigated with X-ray microdiffraction. The intensity of the (30.0) and (22.0) reflections of Al2O3 was monitored in topography mode using an X-ray beam focused by a tapered capillary to spot sizes ranging from 5 to 25 μm. Significant changes in this intensity revealed buried voids along a nominally intact interface. These changes also provided information about the distribution of residual stresses along the interface. The discussion includes advantages and some complications with this technique for measuring residual stresses in composites.

AB - The structure and strength of fiber/matrix interfaces in fiber-reinforced composites are crucial in determining the overall mechanical behavior of these materials. To investigate the integrity and structure of such an interface on the microstructure scale, a model composite consisting of a single crystal Al2O3 fiber in an Al matrix was investigated with X-ray microdiffraction. The intensity of the (30.0) and (22.0) reflections of Al2O3 was monitored in topography mode using an X-ray beam focused by a tapered capillary to spot sizes ranging from 5 to 25 μm. Significant changes in this intensity revealed buried voids along a nominally intact interface. These changes also provided information about the distribution of residual stresses along the interface. The discussion includes advantages and some complications with this technique for measuring residual stresses in composites.

KW - Al-AlO composite

KW - Metal matrix composites

KW - Thermal residual stress

KW - Topography

KW - X-ray diffraction

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U2 - 10.4028/www.scientific.net/msf.404-407.919

DO - 10.4028/www.scientific.net/msf.404-407.919

M3 - Conference article

AN - SCOPUS:0036430808

SN - 0255-5476

VL - 404-407

SP - 919

EP - 924

JO - Materials Science Forum

JF - Materials Science Forum

T2 - Proceedings of the 6th European Conference on Residual Stresses

Y2 - 10 July 2002 through 12 July 2002

ER -

Characterization of fiber/matrix interfaces using X-ray microtopography

Abstract

Keywords

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