Fabrication and ultra-high-temperature properties of lightweight carbon-bonded carbon fiber composites

Yanfei Chen; Yunong Zhao; Debao Liu; Ran Tao; Tianbao Cheng; Shigang Ai; Baosheng Xu; Yazheng Yang; Daining Fang

doi:10.1016/j.ceramint.2019.07.250

Fabrication and ultra-high-temperature properties of lightweight carbon-bonded carbon fiber composites

Yanfei Chen
, Yunong Zhao
, Debao Liu
, Ran Tao
, Tianbao Cheng
, Shigang Ai
, Baosheng Xu^*
, Yazheng Yang
, Daining Fang

^*Corresponding author for this work

Institute of Advanced Structure Technology

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

17 Citations (Scopus)

Abstract

Carbon bonded carbon fiber (CBCF) composites with different fiber volume fractions (FVFs) are prepared. This paper mainly investigates the effect of FVFs and the ultra-high temperature on the mechanical and thermal properties of CBCF composites. Experimental results show that the microstructure of CBCF composites is anisotropic, random distribution in xy direction and layering in z direction. With higher FVFs, the modulus and fracture strength are higher. The fracture strength in xy direction is greatly higher than that in z direction, because more fibers bear the load. Elastoplastic behavior of stress-strain curves is observed in z direction, which is attributed to the compression of porosity and gap. Especially, at ultra-high temperature, the plastic hardening effect is remarkable. In addition, the thermal conductivities of CBCF composites with different FVFs are characterized, which increase exponentially with temperature.

Original language	English
Pages (from-to)	22249-22252
Number of pages	4
Journal	Ceramics International
Volume	45
Issue number	17
DOIs	https://doi.org/10.1016/j.ceramint.2019.07.250
Publication status	Published - 1 Dec 2019

Keywords

CBCF composites
Mechanical and thermal properties
Ultra-high temperature

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10.1016/j.ceramint.2019.07.250

Cite this

@article{6700fdc331f14a29a4310f0c360f12a4,

title = "Fabrication and ultra-high-temperature properties of lightweight carbon-bonded carbon fiber composites",

abstract = "Carbon bonded carbon fiber (CBCF) composites with different fiber volume fractions (FVFs) are prepared. This paper mainly investigates the effect of FVFs and the ultra-high temperature on the mechanical and thermal properties of CBCF composites. Experimental results show that the microstructure of CBCF composites is anisotropic, random distribution in xy direction and layering in z direction. With higher FVFs, the modulus and fracture strength are higher. The fracture strength in xy direction is greatly higher than that in z direction, because more fibers bear the load. Elastoplastic behavior of stress-strain curves is observed in z direction, which is attributed to the compression of porosity and gap. Especially, at ultra-high temperature, the plastic hardening effect is remarkable. In addition, the thermal conductivities of CBCF composites with different FVFs are characterized, which increase exponentially with temperature.",

keywords = "CBCF composites, Mechanical and thermal properties, Ultra-high temperature",

author = "Yanfei Chen and Yunong Zhao and Debao Liu and Ran Tao and Tianbao Cheng and Shigang Ai and Baosheng Xu and Yazheng Yang and Daining Fang",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",

year = "2019",

month = dec,

day = "1",

doi = "10.1016/j.ceramint.2019.07.250",

language = "English",

volume = "45",

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journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Fabrication and ultra-high-temperature properties of lightweight carbon-bonded carbon fiber composites

AU - Chen, Yanfei

AU - Zhao, Yunong

AU - Liu, Debao

AU - Tao, Ran

AU - Cheng, Tianbao

AU - Ai, Shigang

AU - Xu, Baosheng

AU - Yang, Yazheng

AU - Fang, Daining

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Carbon bonded carbon fiber (CBCF) composites with different fiber volume fractions (FVFs) are prepared. This paper mainly investigates the effect of FVFs and the ultra-high temperature on the mechanical and thermal properties of CBCF composites. Experimental results show that the microstructure of CBCF composites is anisotropic, random distribution in xy direction and layering in z direction. With higher FVFs, the modulus and fracture strength are higher. The fracture strength in xy direction is greatly higher than that in z direction, because more fibers bear the load. Elastoplastic behavior of stress-strain curves is observed in z direction, which is attributed to the compression of porosity and gap. Especially, at ultra-high temperature, the plastic hardening effect is remarkable. In addition, the thermal conductivities of CBCF composites with different FVFs are characterized, which increase exponentially with temperature.

AB - Carbon bonded carbon fiber (CBCF) composites with different fiber volume fractions (FVFs) are prepared. This paper mainly investigates the effect of FVFs and the ultra-high temperature on the mechanical and thermal properties of CBCF composites. Experimental results show that the microstructure of CBCF composites is anisotropic, random distribution in xy direction and layering in z direction. With higher FVFs, the modulus and fracture strength are higher. The fracture strength in xy direction is greatly higher than that in z direction, because more fibers bear the load. Elastoplastic behavior of stress-strain curves is observed in z direction, which is attributed to the compression of porosity and gap. Especially, at ultra-high temperature, the plastic hardening effect is remarkable. In addition, the thermal conductivities of CBCF composites with different FVFs are characterized, which increase exponentially with temperature.

KW - CBCF composites

KW - Mechanical and thermal properties

KW - Ultra-high temperature

UR - https://www.scopus.com/pages/publications/85069683921

U2 - 10.1016/j.ceramint.2019.07.250

DO - 10.1016/j.ceramint.2019.07.250

M3 - Article

AN - SCOPUS:85069683921

SN - 0272-8842

VL - 45

SP - 22249

EP - 22252

JO - Ceramics International

JF - Ceramics International

IS - 17

ER -

Fabrication and ultra-high-temperature properties of lightweight carbon-bonded carbon fiber composites

Abstract

Keywords

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