Monotonic and fatigue behavior of a NicalonTM/alumina composite at ambient and elevated temperatures

N. Miriyala; P. K. Liaw; C. J. McHargue; L. L. Snead; J. A. Morrison

Monotonic and fatigue behavior of a Nicalon^TM/alumina composite at ambient and elevated temperatures

N. Miriyala
, P. K. Liaw
, C. J. McHargue
, L. L. Snead
, J. A. Morrison

Materials Science and Engineering

University of Tennessee

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

5 Scopus citations

Abstract

The effects of fabric orientation on the mechanical behavior of a Nicalon^TMAlumina composite were investigated. Flexure specimens were subjected to monotonic and cyclic-fatigue loadings, at ambient temperature in air, and at 1000 °C in argon atmosphere, with loading either parallel or normal to the fabric plies. The flexural strengths at the ambient and elevated temperatures were comparable. However, there was a significant degradation in the fatigue performance of the composite at 1000 °C compared to the room-temperature behavior, owing to creep in the material and degradation in the fiber strength. The edge-on specimens failed by breakage of the 0° fibers. In contrast, failure in the transversely oriented specimens occurred by interlaminar cracking, followed by specimen collapse.

Original language	English
Pages (from-to)	747-755
Number of pages	9
Journal	Ceramic Engineering and Science Proceedings
Volume	18
Issue number	3 A
State	Published - 1997
Event	Proceedings of the 1997 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures-B - Cocoa, FL, USA Duration: Jan 12 1997 → Jan 16 1997

Cite this

@article{7cfcaa1662e2460b807d73a9ce3e5bed,

title = "Monotonic and fatigue behavior of a NicalonTM/alumina composite at ambient and elevated temperatures",

abstract = "The effects of fabric orientation on the mechanical behavior of a NicalonTMAlumina composite were investigated. Flexure specimens were subjected to monotonic and cyclic-fatigue loadings, at ambient temperature in air, and at 1000 °C in argon atmosphere, with loading either parallel or normal to the fabric plies. The flexural strengths at the ambient and elevated temperatures were comparable. However, there was a significant degradation in the fatigue performance of the composite at 1000 °C compared to the room-temperature behavior, owing to creep in the material and degradation in the fiber strength. The edge-on specimens failed by breakage of the 0° fibers. In contrast, failure in the transversely oriented specimens occurred by interlaminar cracking, followed by specimen collapse.",

author = "N. Miriyala and Liaw, \{P. K.\} and McHargue, \{C. J.\} and Snead, \{L. L.\} and Morrison, \{J. A.\}",

year = "1997",

language = "English",

volume = "18",

pages = "747--755",

journal = "Ceramic Engineering and Science Proceedings",

issn = "0196-6219",

number = "3 A",

note = "Proceedings of the 1997 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures-B ; Conference date: 12-01-1997 Through 16-01-1997",

}

TY - JOUR

T1 - Monotonic and fatigue behavior of a NicalonTM/alumina composite at ambient and elevated temperatures

AU - Miriyala, N.

AU - Liaw, P. K.

AU - McHargue, C. J.

AU - Snead, L. L.

AU - Morrison, J. A.

PY - 1997

Y1 - 1997

N2 - The effects of fabric orientation on the mechanical behavior of a NicalonTMAlumina composite were investigated. Flexure specimens were subjected to monotonic and cyclic-fatigue loadings, at ambient temperature in air, and at 1000 °C in argon atmosphere, with loading either parallel or normal to the fabric plies. The flexural strengths at the ambient and elevated temperatures were comparable. However, there was a significant degradation in the fatigue performance of the composite at 1000 °C compared to the room-temperature behavior, owing to creep in the material and degradation in the fiber strength. The edge-on specimens failed by breakage of the 0° fibers. In contrast, failure in the transversely oriented specimens occurred by interlaminar cracking, followed by specimen collapse.

AB - The effects of fabric orientation on the mechanical behavior of a NicalonTMAlumina composite were investigated. Flexure specimens were subjected to monotonic and cyclic-fatigue loadings, at ambient temperature in air, and at 1000 °C in argon atmosphere, with loading either parallel or normal to the fabric plies. The flexural strengths at the ambient and elevated temperatures were comparable. However, there was a significant degradation in the fatigue performance of the composite at 1000 °C compared to the room-temperature behavior, owing to creep in the material and degradation in the fiber strength. The edge-on specimens failed by breakage of the 0° fibers. In contrast, failure in the transversely oriented specimens occurred by interlaminar cracking, followed by specimen collapse.

UR - https://www.scopus.com/pages/publications/0030661425

M3 - Conference article

AN - SCOPUS:0030661425

SN - 0196-6219

VL - 18

SP - 747

EP - 755

JO - Ceramic Engineering and Science Proceedings

JF - Ceramic Engineering and Science Proceedings

IS - 3 A

T2 - Proceedings of the 1997 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures-B

Y2 - 12 January 1997 through 16 January 1997

ER -

Monotonic and fatigue behavior of a Nicalon^TM/alumina composite at ambient and elevated temperatures

Abstract

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