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NDE Characterization and Mechanical Behavior in Ceramic Matrix Composites

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Abstract:

Several nondestructive evaluation (NDE) techniques, including ultrasonic C-scan, X-ray computed tomography (CT), and infrared (IR) thermography, were employed on ceramic matrix composites (CMCs) to illustrate defect information that might effect mechanical behavior and to analyze structural performance of CMCs. Prior to tensile testing, through C-scan and CT analyses results, the qualitative relationship between the relative ultrasonic transmitted amplitude and porosity based on CT was exhibited. An IR camera was used for in-situ monitoring of progressive damages and to determine temperature changes during tensile testing. Moreover, scanning-electron microscopy characterization was used to perform microstructural failure analyses. This paper describes the use of nondestructive evaluation (NDE) techniques to facilitate the understanding of tension behavior of CMCs.

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Periodical:

Key Engineering Materials (Volumes 321-323)

Pages:

946-951

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.321-323.946

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Online since:

October 2006

Authors:

Jeong Guk Kim, Sung Tae Kwon, Won Kyung Kim

Keywords:

Ceramic Matrix Composite (CMC), Infrared Thermography (IRT), Tension Behavior, Ultrasonic C-Scan, X-Ray CT (Computed Tomography)

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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