Effect of stitch spacing on mechanical properties of carbon/silicon carbide composites

Jingjiang Nie; Yongdong Xu; Litong Zhang; Xiaowei Yin; Laifei Cheng; Junqiang Ma

doi:10.1016/j.compscitech.2008.04.012

Effect of stitch spacing on mechanical properties of carbon/silicon carbide composites

Jingjiang Nie, Yongdong Xu, Litong Zhang, Xiaowei Yin, Laifei Cheng, Junqiang Ma

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

The effects of stitch spacing on the mechanical properties of the carbon fiber reinforced silicon carbide composites fabricated by chemical vapor infiltration (CVI) were investigated. The results showed that the stitch spacing had little effect on the density and open porosity of the composites. The stitches improved the shear and tensile strengths of all stitched C/SiC composites, by suppressing and delaying the delamination. However, flexural strength was not changed for the composites with stitch spacing of 10 mm or 5 mm, but was slightly reduced for densely stitched composites with spacing of 2.5 mm. The optimum stitch spacing was 5 mm, which improved apparently the interlaminar shear strength and tensile strength of the composites with little detrimental effect on the flexural strength.

Original language	English
Pages (from-to)	2425-2432
Number of pages	8
Journal	Composites Science and Technology
Volume	68
Issue number	12
DOIs	https://doi.org/10.1016/j.compscitech.2008.04.012
State	Published - Sep 2008

Keywords

A. Ceramic-matrix composites
B. Mechanical properties
B. Microstructure
E. Chemical vapor infiltration
Stitch

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10.1016/j.compscitech.2008.04.012

Cite this

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title = "Effect of stitch spacing on mechanical properties of carbon/silicon carbide composites",

abstract = "The effects of stitch spacing on the mechanical properties of the carbon fiber reinforced silicon carbide composites fabricated by chemical vapor infiltration (CVI) were investigated. The results showed that the stitch spacing had little effect on the density and open porosity of the composites. The stitches improved the shear and tensile strengths of all stitched C/SiC composites, by suppressing and delaying the delamination. However, flexural strength was not changed for the composites with stitch spacing of 10 mm or 5 mm, but was slightly reduced for densely stitched composites with spacing of 2.5 mm. The optimum stitch spacing was 5 mm, which improved apparently the interlaminar shear strength and tensile strength of the composites with little detrimental effect on the flexural strength.",

keywords = "A. Ceramic-matrix composites, B. Mechanical properties, B. Microstructure, E. Chemical vapor infiltration, Stitch",

author = "Jingjiang Nie and Yongdong Xu and Litong Zhang and Xiaowei Yin and Laifei Cheng and Junqiang Ma",

year = "2008",

month = sep,

doi = "10.1016/j.compscitech.2008.04.012",

language = "英语",

volume = "68",

pages = "2425--2432",

journal = "Composites Science and Technology",

issn = "0266-3538",

publisher = "Elsevier B.V.",

number = "12",

}

TY - JOUR

T1 - Effect of stitch spacing on mechanical properties of carbon/silicon carbide composites

AU - Nie, Jingjiang

AU - Xu, Yongdong

AU - Zhang, Litong

AU - Yin, Xiaowei

AU - Cheng, Laifei

AU - Ma, Junqiang

PY - 2008/9

Y1 - 2008/9

N2 - The effects of stitch spacing on the mechanical properties of the carbon fiber reinforced silicon carbide composites fabricated by chemical vapor infiltration (CVI) were investigated. The results showed that the stitch spacing had little effect on the density and open porosity of the composites. The stitches improved the shear and tensile strengths of all stitched C/SiC composites, by suppressing and delaying the delamination. However, flexural strength was not changed for the composites with stitch spacing of 10 mm or 5 mm, but was slightly reduced for densely stitched composites with spacing of 2.5 mm. The optimum stitch spacing was 5 mm, which improved apparently the interlaminar shear strength and tensile strength of the composites with little detrimental effect on the flexural strength.

AB - The effects of stitch spacing on the mechanical properties of the carbon fiber reinforced silicon carbide composites fabricated by chemical vapor infiltration (CVI) were investigated. The results showed that the stitch spacing had little effect on the density and open porosity of the composites. The stitches improved the shear and tensile strengths of all stitched C/SiC composites, by suppressing and delaying the delamination. However, flexural strength was not changed for the composites with stitch spacing of 10 mm or 5 mm, but was slightly reduced for densely stitched composites with spacing of 2.5 mm. The optimum stitch spacing was 5 mm, which improved apparently the interlaminar shear strength and tensile strength of the composites with little detrimental effect on the flexural strength.

KW - A. Ceramic-matrix composites

KW - B. Mechanical properties

KW - B. Microstructure

KW - E. Chemical vapor infiltration

KW - Stitch

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U2 - 10.1016/j.compscitech.2008.04.012

DO - 10.1016/j.compscitech.2008.04.012

M3 - 文章

AN - SCOPUS:51649091860

SN - 0266-3538

VL - 68

SP - 2425

EP - 2432

JO - Composites Science and Technology

JF - Composites Science and Technology

IS - 12

ER -

Effect of stitch spacing on mechanical properties of carbon/silicon carbide composites

Abstract

Keywords

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