Effect of heat treatment on interface failure behavior in SiCf/PyC/SiC composites reinforced with Cansas-3 fibers

Yujie Ma; Xinyu Meng; Yongjing Cui; Sijie Kou; Shaobo Yang; Chun Guo; Juanli Deng; Shangwu Fan

doi:10.1016/j.ceramint.2024.05.108

Effect of heat treatment on interface failure behavior in SiC_f/PyC/SiC composites reinforced with Cansas-3 fibers

Yujie Ma, Xinyu Meng, Yongjing Cui, Sijie Kou, Shaobo Yang, Chun Guo, Juanli Deng, Shangwu Fan

School of Materials Sience and Engineering

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

12 Scopus citations

Abstract

The influence of heat treatment on the correlation between interfacial mechanical properties and microstructure in CVI-SiC_f/PyC/SiC composites was systematically investigated. The results reveal a progressive reduction in the average interfacial bond strength, interfacial shear stress, and interfacial debonding energy within the composites as the heat treatment temperature increases, especially beyond 1350 °C. This decline can be attributed to the attenuation of the SiC_f/PyC interfacial bond strength arising from the contraction in fiber volume induced by the precipitation of Cansas-3 fibers. After push-in testing, SiC_f/PyC/SiC composites heat-treated at or below 1350 °C displayed fibers in a compressed state. Conversely, composites exposed to extended heat treatment at 1400 °C or higher maintained fibers in an ejected state after push-in testing. Moreover, the composites heat-treated at 1450 °C and 1500 °C demonstrated fibers that were spontaneously ejected subsequent to cross-section polishing.

Original language	English
Pages (from-to)	28102-28112
Number of pages	11
Journal	Ceramics International
Volume	50
Issue number	16
DOIs	https://doi.org/10.1016/j.ceramint.2024.05.108
State	Published - 15 Aug 2024

Keywords

CVI-SiC/PyC/SiC composites
Fiber push-in test
Heat treatment
Interfacial mechanical properties

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10.1016/j.ceramint.2024.05.108

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title = "Effect of heat treatment on interface failure behavior in SiCf/PyC/SiC composites reinforced with Cansas-3 fibers",

abstract = "The influence of heat treatment on the correlation between interfacial mechanical properties and microstructure in CVI-SiCf/PyC/SiC composites was systematically investigated. The results reveal a progressive reduction in the average interfacial bond strength, interfacial shear stress, and interfacial debonding energy within the composites as the heat treatment temperature increases, especially beyond 1350 °C. This decline can be attributed to the attenuation of the SiCf/PyC interfacial bond strength arising from the contraction in fiber volume induced by the precipitation of Cansas-3 fibers. After push-in testing, SiCf/PyC/SiC composites heat-treated at or below 1350 °C displayed fibers in a compressed state. Conversely, composites exposed to extended heat treatment at 1400 °C or higher maintained fibers in an ejected state after push-in testing. Moreover, the composites heat-treated at 1450 °C and 1500 °C demonstrated fibers that were spontaneously ejected subsequent to cross-section polishing.",

keywords = "CVI-SiC/PyC/SiC composites, Fiber push-in test, Heat treatment, Interfacial mechanical properties",

author = "Yujie Ma and Xinyu Meng and Yongjing Cui and Sijie Kou and Shaobo Yang and Chun Guo and Juanli Deng and Shangwu Fan",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Ltd and Techna Group S.r.l.",

year = "2024",

month = aug,

day = "15",

doi = "10.1016/j.ceramint.2024.05.108",

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T1 - Effect of heat treatment on interface failure behavior in SiCf/PyC/SiC composites reinforced with Cansas-3 fibers

AU - Ma, Yujie

AU - Meng, Xinyu

AU - Cui, Yongjing

AU - Kou, Sijie

AU - Yang, Shaobo

AU - Guo, Chun

AU - Deng, Juanli

AU - Fan, Shangwu

PY - 2024/8/15

Y1 - 2024/8/15

N2 - The influence of heat treatment on the correlation between interfacial mechanical properties and microstructure in CVI-SiCf/PyC/SiC composites was systematically investigated. The results reveal a progressive reduction in the average interfacial bond strength, interfacial shear stress, and interfacial debonding energy within the composites as the heat treatment temperature increases, especially beyond 1350 °C. This decline can be attributed to the attenuation of the SiCf/PyC interfacial bond strength arising from the contraction in fiber volume induced by the precipitation of Cansas-3 fibers. After push-in testing, SiCf/PyC/SiC composites heat-treated at or below 1350 °C displayed fibers in a compressed state. Conversely, composites exposed to extended heat treatment at 1400 °C or higher maintained fibers in an ejected state after push-in testing. Moreover, the composites heat-treated at 1450 °C and 1500 °C demonstrated fibers that were spontaneously ejected subsequent to cross-section polishing.

AB - The influence of heat treatment on the correlation between interfacial mechanical properties and microstructure in CVI-SiCf/PyC/SiC composites was systematically investigated. The results reveal a progressive reduction in the average interfacial bond strength, interfacial shear stress, and interfacial debonding energy within the composites as the heat treatment temperature increases, especially beyond 1350 °C. This decline can be attributed to the attenuation of the SiCf/PyC interfacial bond strength arising from the contraction in fiber volume induced by the precipitation of Cansas-3 fibers. After push-in testing, SiCf/PyC/SiC composites heat-treated at or below 1350 °C displayed fibers in a compressed state. Conversely, composites exposed to extended heat treatment at 1400 °C or higher maintained fibers in an ejected state after push-in testing. Moreover, the composites heat-treated at 1450 °C and 1500 °C demonstrated fibers that were spontaneously ejected subsequent to cross-section polishing.

KW - CVI-SiC/PyC/SiC composites

KW - Fiber push-in test

KW - Heat treatment

KW - Interfacial mechanical properties

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U2 - 10.1016/j.ceramint.2024.05.108

DO - 10.1016/j.ceramint.2024.05.108

M3 - 文章

AN - SCOPUS:85192821601

SN - 0272-8842

VL - 50

SP - 28102

EP - 28112

JO - Ceramics International

JF - Ceramics International

IS - 16

ER -

Effect of heat treatment on interface failure behavior in SiC_f/PyC/SiC composites reinforced with Cansas-3 fibers

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Keywords

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