Through thickness mechanical properties of chemical vapor infiltration and nano-infiltration and transient eutectic-phase processed SiC/SiC composites

Shih, Chunghao Phillip; Katoh, Yutai; Ozawa, Kazumi; Lara-Curzio, Edgar; Snead, Lance Lewis

doi:10.1111/ijac.12256

Title: Through thickness mechanical properties of chemical vapor infiltration and nano-infiltration and transient eutectic-phase processed SiC/SiC composites

Journal Article · Tue Apr 08 00:00:00 EDT 2014 · International Journal of Applied Ceramic Technology

DOI:https://doi.org/10.1111/ijac.12256· OSTI ID:1195796

Shih, Chunghao Phillip ^[1]; Katoh, Yutai ^[1]; Ozawa, Kazumi ^[1]; Lara-Curzio, Edgar ^[1]; Snead, Lance Lewis ^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The through thickness (interlaminar) shear strength and trans-thickness tensile strength of three different nuclear-grade SiC/SiC composites were evaluated at room temperature by the double-notched shear and diametral compression tests, respectively. With increasing densification of the interlaminar matrix region, a transition in failure locations from interlayer to intrafiber bundle was observed, along with significant increases in the value of the interlaminar shear strength. Under trans-thickness tensile loading, cracks were found to propagate easily in the unidirectional composite. Furthermore, the 2D woven composite had a higher trans-thickness tensile strength (38 MPa) because the failure mode involved debonding, fiber pull-out and fiber failure.

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Research Organization:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1195796

Journal Information:: International Journal of Applied Ceramic Technology, Vol. 12, Issue 3; ISSN 1546-542X

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 3 works

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References (13)

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