Super-elastic carbon-bonded carbon fibre composites impregnated with carbon aerogel for high-temperature thermal insulation

被引：27

作者：

Ye, Changshou ^{[1
]}

An, Zhimin ^{[1
]}

Zhang, Rubing ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Sch Civil Engn, Beijing, Peoples R China

来源：

ADVANCES IN APPLIED CERAMICS | 2019年 / 118卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Carbon aerogel; thermal properties; super-elastic; electromagnetic interference shielding; SHIELDING EFFECTIVENESS; MECHANICAL-PROPERTIES; CONDUCTIVITY; LIGHTWEIGHT; FABRICATION; RESISTANCE; OXIDATION;

D O I：

10.1080/17436753.2019.1572341

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel super-elastic carbon fibre composite was prepared by impregnating carbon aerogel into carbon-bonded carbon fibre (CBCF) through vacuum impregnation. The compressive strength of CBCF-CA was increased to 1.24 MPa in the z-direction, which was 6-fold more than that of neat CBCF. The CBCF-CA spontaneously recovered its size and shape without significant deformation when the pressure was released. The thermal conductivity of CBCF-CA was 0.246 W (m center dot K)(-1) at 1400 degrees C in the z-direction, which is lower than that of CBCF (0.341 W (m center dot K)(-1)). The average electromagnetic interference shielding effectiveness of CBCF-CA composites in the range of 12.4-18 GHz was higher than 40 dB, suggesting an absorption-dominant shielding feature. The CBCF-CA composite will be a new multifunctional material due to its low density, low thermal conductivity, high specific strength, excellent processability, super-elastic property and high electromagnetic shielding, which can be used for thermal insulation and protection of aerospace.

引用

页码：292 / 299

页数：8

共 34 条

[1] Oxidation and thermal degradation resistance of silicon carbide coated low density carbon-carbon composite [J].

Ahmed, A. S. ;

Rawlings, R. D. ;

Ellacott, S. D. ;

Boccaccini, A. R. .

ADVANCES IN APPLIED CERAMICS, 2013, 112 (01) :23-32

[2] Mechanical Properties of Low-Density SiC-Coated Carbon-Bonded Carbon Fiber Composites [J].

Ahmed, Asher S. ;

Chlup, Zdenek ;

Dlouhy, Ivo ;

Rawlings, Rees D. ;

Boccaccini, Aldo R. .

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2012, 9 (02) :401-412

[3] EMI shielding effectiveness of carbon based nanostructured polymeric materials: A comparative study [J].

Al-Saleh, Mohammed H. ;

Saadeh, Walaa H. ;

Sundararaj, Uttandaraman .

CARBON, 2013, 60 :146-156

[4] Effect of chemical vapor infiltration on erosion and thermal properties of porous carbon/carbon composite thermal insulation [J].

Baxter, RI ;

Rawlings, RD ;

Iwashita, N ;

Sawada, Y .

CARBON, 2000, 38 (03) :441-449

[5] THERMAL-PROPERTIES OF CARBON AEROGELS [J].

BOCK, V ;

NILSSON, O ;

BLUMM, J ;

FRICKE, J .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1995, 185 (03) :233-239

[6] Lightweight carbon-bonded carbon fiber composites with quasi-layered and network structure [J].

Cheng, Haiming ;

Hong, Changqing ;

Zhang, Xinghong ;

Xue, Huafei .

MATERIALS & DESIGN, 2015, 86 :156-159

[7] Electromagnetic interference shielding effectiveness of carbon materials [J].

Chung, DDL .

CARBON, 2001, 39 (02) :279-285

[8] Mechanical properties in compression of CVI-densified porous carbon/carbon composite [J].

Davies, IJ ;

Rawlings, RD .

COMPOSITES SCIENCE AND TECHNOLOGY, 1999, 59 (01) :97-104

[9] Determination of the anisotropic thermal conductivity of a carbon aerogel-fiber composite by a non-contact thermographic technique [J].

Drach, V. ;

Wiener, M. ;

Reichenauer, G. ;

Ebert, H. -P. ;

Fricke, J. .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2007, 28 (05) :1542-1562

[10] Carbon Aerogel Composites Prepared by Ambient Drying and Using Oxidized Polyacrylonitrile Fibers as Reinforcements [J].

Feng, Junzong ;

Zhang, Changrui ;

Feng, Jian ;

Jiang, Yonggang ;

Zhao, Nan .

ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (12) :4796-4803

← 1 2 3 4 →