Statistically sound application of fiber push-out method for the study of locally non-uniform interfacial properties of SiC-SiC fiber composites

被引：13

作者：

Hussey, A. ^{[1
]}

De Meyere, R. ^{[1
]}

Deck, C. ^{[2
]}

Armstrong, D. E. J. ^{[1
]}

Zayachuk, Y. ^{[1
,3
]}

机构：

[1] Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England

[2] Gen Atom, POB 85608, San Diego, CA 92186 USA

[3] UK Atom Energy Author, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2020年 / 40卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

Ceramic-matrix composites (CMGs); Debonding; Interface/interphase; Mechanical testing; SILICON-CARBIDE; CERAMIC-MATRIX; SIC/SIC COMPOSITES; MECHANISMS; OXIDATION;

D O I：

10.1016/j.jeurceramsoc.2019.11.041

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：

Push-out tests were performed on SiC-SiC fiber composites with single- and multi-layered pyrolytic carbon fiber-matrix interphases. It is shown that experimental scatter is significant and a large number of tests is necessary in order to obtain statistically relevant values of interfacial shear strength. A difference between the regions of an individual fiber tow is observed, linked to local porosity. Interfacial debonding occurs along the boundary between the fiber and the first carbon layer, regardless of the structure of the interphase, and therefore interfacial shear strength is not directly linked to the structure of the interphase.

引用

页码：1052 / 1056

页数：5

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