Through Thickness Mechanical Properties of Chemical Vapor Infiltration and Nano-Infiltration and Transient Eutectic-Phase Processed SiC/SiC Composites

被引：3

作者：

Shih, Chunghao ^{[1
]}

Katoh, Yutai ^{[1
]}

Ozawa, Kazumi ^{[1
]}

Lara-Curzio, Edgar ^{[1
]}

Snead, Lance ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2015年 / 12卷 / 03期

关键词：

SHEAR-STRENGTH; MICROSTRUCTURE; INPLANE;

D O I：

10.1111/ijac.12256

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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. The 2D woven composite had a higher trans-thickness tensile strength (38MPa) because the failure mode involved debonding, fiber pull-out and fiber failure.

引用

页码：481 / 490

页数：10

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