Porous carbon-bonded carbon fiber composites impregnated with SiO2-Al2O3 aerogel with enhanced thermal insulation and mechanical properties

Huimin Li; Yanfei Chen; Panding Wang; Baosheng Xu; Yongbin Ma; Weibin Wen; Yazheng Yang; Daining Fang

doi:10.1016/j.ceramint.2017.11.064

Porous carbon-bonded carbon fiber composites impregnated with SiO₂-Al₂O₃ aerogel with enhanced thermal insulation and mechanical properties

Huimin Li, Yanfei Chen, Panding Wang, Baosheng Xu^*, Yongbin Ma, Weibin Wen, Yazheng Yang, Daining Fang

^*Corresponding author for this work

Institute of Advanced Structure Technology

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

66 Citations (Scopus)

Abstract

To improve the thermal insulation and mechanical properties of lightweight carbon- bonded carbon fiber composites (CBCF), a porous CBCF decorated with nano SiO₂-Al₂O₃ aerogel was prepared by sol-gel impregnation. Results showed that the nano aerogel were uniformly assembled within the pores in the CBCF framework. The aerogel played a significant role on reducing the thermal conductivity of CBCF, which could be mainly ascribed to reduced radiation and gas thermal conductivity of CBCF. Moreover, the aerogel in the CBCF pores hindered the bending fracture or elastic bending/rotation of the fibers and enhanced the mechanical properties of the composites.

Original language	English
Pages (from-to)	3484-3487
Number of pages	4
Journal	Ceramics International
Volume	44
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2017.11.064
Publication status	Published - 15 Feb 2018

Keywords

Aerogel
Carbon
Microstructure
Thermal properties

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10.1016/j.ceramint.2017.11.064

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title = "Porous carbon-bonded carbon fiber composites impregnated with SiO2-Al2O3 aerogel with enhanced thermal insulation and mechanical properties",

abstract = "To improve the thermal insulation and mechanical properties of lightweight carbon- bonded carbon fiber composites (CBCF), a porous CBCF decorated with nano SiO2-Al2O3 aerogel was prepared by sol-gel impregnation. Results showed that the nano aerogel were uniformly assembled within the pores in the CBCF framework. The aerogel played a significant role on reducing the thermal conductivity of CBCF, which could be mainly ascribed to reduced radiation and gas thermal conductivity of CBCF. Moreover, the aerogel in the CBCF pores hindered the bending fracture or elastic bending/rotation of the fibers and enhanced the mechanical properties of the composites.",

keywords = "Aerogel, Carbon, Microstructure, Thermal properties",

author = "Huimin Li and Yanfei Chen and Panding Wang and Baosheng Xu and Yongbin Ma and Weibin Wen and Yazheng Yang and Daining Fang",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd and Techna Group S.r.l.",

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T1 - Porous carbon-bonded carbon fiber composites impregnated with SiO2-Al2O3 aerogel with enhanced thermal insulation and mechanical properties

AU - Li, Huimin

AU - Chen, Yanfei

AU - Wang, Panding

AU - Xu, Baosheng

AU - Ma, Yongbin

AU - Wen, Weibin

AU - Yang, Yazheng

AU - Fang, Daining

PY - 2018/2/15

Y1 - 2018/2/15

N2 - To improve the thermal insulation and mechanical properties of lightweight carbon- bonded carbon fiber composites (CBCF), a porous CBCF decorated with nano SiO2-Al2O3 aerogel was prepared by sol-gel impregnation. Results showed that the nano aerogel were uniformly assembled within the pores in the CBCF framework. The aerogel played a significant role on reducing the thermal conductivity of CBCF, which could be mainly ascribed to reduced radiation and gas thermal conductivity of CBCF. Moreover, the aerogel in the CBCF pores hindered the bending fracture or elastic bending/rotation of the fibers and enhanced the mechanical properties of the composites.

AB - To improve the thermal insulation and mechanical properties of lightweight carbon- bonded carbon fiber composites (CBCF), a porous CBCF decorated with nano SiO2-Al2O3 aerogel was prepared by sol-gel impregnation. Results showed that the nano aerogel were uniformly assembled within the pores in the CBCF framework. The aerogel played a significant role on reducing the thermal conductivity of CBCF, which could be mainly ascribed to reduced radiation and gas thermal conductivity of CBCF. Moreover, the aerogel in the CBCF pores hindered the bending fracture or elastic bending/rotation of the fibers and enhanced the mechanical properties of the composites.

KW - Aerogel

KW - Carbon

KW - Microstructure

KW - Thermal properties

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DO - 10.1016/j.ceramint.2017.11.064

M3 - Article

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SN - 0272-8842

VL - 44

SP - 3484

EP - 3487

JO - Ceramics International

JF - Ceramics International

IS - 3

ER -

Porous carbon-bonded carbon fiber composites impregnated with SiO₂-Al₂O₃ aerogel with enhanced thermal insulation and mechanical properties

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Keywords

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