Properties and microstructure of Nextel 720/SiC composites

Zhaofeng Chen; Litong Zhang; Laifei Cheng; Yongdong Xu

doi:10.1016/j.ceramint.2004.06.024

Properties and microstructure of Nextel 720/SiC composites

Zhaofeng Chen, Litong Zhang, Laifei Cheng, Yongdong Xu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

15 Scopus citations

Abstract

Continuous Nextel 720 fibers reinforced SiC composites were fabricated by CVI at 1100 °C for 200 h using SiCH₃Cl₃ as precursor. The mechanical properties were measured by three-point bending. The microstructures of the interface and fracture surface were characterized by SEM. The values of the Nextel 720/SiC for mean strength and Yong's modulus were 316 MPa and 211 GPa, respectively. The composites had a high failure strain of 0.25%. The multi-layer PyC interface and the crevices between the fiber and the matrix resulted in a metal-like fracture behavior.

Original language	English
Pages (from-to)	573-575
Number of pages	3
Journal	Ceramics International
Volume	31
Issue number	4
DOIs	https://doi.org/10.1016/j.ceramint.2004.06.024
State	Published - 2005

Keywords

B. Composites
B. Interface
C. Mechanical properties
Nextel 720

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10.1016/j.ceramint.2004.06.024

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@article{9d757bf0765141188d6386572b690491,

title = "Properties and microstructure of Nextel 720/SiC composites",

abstract = "Continuous Nextel 720 fibers reinforced SiC composites were fabricated by CVI at 1100 °C for 200 h using SiCH3Cl3 as precursor. The mechanical properties were measured by three-point bending. The microstructures of the interface and fracture surface were characterized by SEM. The values of the Nextel 720/SiC for mean strength and Yong's modulus were 316 MPa and 211 GPa, respectively. The composites had a high failure strain of 0.25\%. The multi-layer PyC interface and the crevices between the fiber and the matrix resulted in a metal-like fracture behavior.",

keywords = "B. Composites, B. Interface, C. Mechanical properties, Nextel 720",

author = "Zhaofeng Chen and Litong Zhang and Laifei Cheng and Yongdong Xu",

year = "2005",

doi = "10.1016/j.ceramint.2004.06.024",

language = "英语",

volume = "31",

pages = "573--575",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "4",

}

TY - JOUR

T1 - Properties and microstructure of Nextel 720/SiC composites

AU - Chen, Zhaofeng

AU - Zhang, Litong

AU - Cheng, Laifei

AU - Xu, Yongdong

PY - 2005

Y1 - 2005

N2 - Continuous Nextel 720 fibers reinforced SiC composites were fabricated by CVI at 1100 °C for 200 h using SiCH3Cl3 as precursor. The mechanical properties were measured by three-point bending. The microstructures of the interface and fracture surface were characterized by SEM. The values of the Nextel 720/SiC for mean strength and Yong's modulus were 316 MPa and 211 GPa, respectively. The composites had a high failure strain of 0.25%. The multi-layer PyC interface and the crevices between the fiber and the matrix resulted in a metal-like fracture behavior.

AB - Continuous Nextel 720 fibers reinforced SiC composites were fabricated by CVI at 1100 °C for 200 h using SiCH3Cl3 as precursor. The mechanical properties were measured by three-point bending. The microstructures of the interface and fracture surface were characterized by SEM. The values of the Nextel 720/SiC for mean strength and Yong's modulus were 316 MPa and 211 GPa, respectively. The composites had a high failure strain of 0.25%. The multi-layer PyC interface and the crevices between the fiber and the matrix resulted in a metal-like fracture behavior.

KW - B. Composites

KW - B. Interface

KW - C. Mechanical properties

KW - Nextel 720

UR - https://www.scopus.com/pages/publications/14544276397

U2 - 10.1016/j.ceramint.2004.06.024

DO - 10.1016/j.ceramint.2004.06.024

M3 - 文章

AN - SCOPUS:14544276397

SN - 0272-8842

VL - 31

SP - 573

EP - 575

JO - Ceramics International

JF - Ceramics International

IS - 4

ER -

Properties and microstructure of Nextel 720/SiC composites

Abstract

Keywords

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