Microstructure and tribological properties of advanced carbon/silicon carbide aircraft brake materials

被引：95

作者：

Fan, Shangwu ^{[1
]}

Zhang, Litong ^{[1
]}

Xu, Yongdong ^{[1
]}

Cheng, Laifei ^{[1
]}

Tian, Guanglai ^{[1
,2
]}

Ke, Shaochang ^{[2
]}

Xu, Fang ^{[1
]}

Liu, Haiping ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Natl Key Lab Thermostruct Composite Mat, Xian 710072, Peoples R China

[2] Shaanxi Huaxing Aviat Wheel & Braking Syst Co Ltd, Xian 713106, Shaanxi, Peoples R China

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2008年 / 68卷 / 14期

基金：

中国国家自然科学基金;

关键词：

Ceramic-matrix composites; Friction/wear; Liquid melt infiltration;

D O I：

10.1016/j.compscitech.2008.06.013

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The structural characteristics of carbon/silicon carbide (C/SiC) aircraft brake materials were studied by means of optical microscopy, SEM, XRD and TEM, and their frictional properties were investigated using a full-size aircraft wheel and brake assembly on a full-scale dynamometer. The materials were composed of layers of non-woven fiber cloth, short fiber web, and needle fibers. SiC and Si were mostly distributed in the short fiber web layers. The SiC matrix consisted of nanosize and micronsize SiC grains. Nano-SiC could help to form the friction film. Micro-SiC could enhance the debris ploughing action to increase the friction resistance. The materials possessed excellent braking performance and wear resistance. The values of friction coefficient under normal landing, overload landing, and rejected take-off dry conditions were 0.27 +/- 0.02, 0.26 +/- 0.01, and 0.24, respectively. It indicated the C/SiC materials with lower fade across the energy spectrum. The average wear rate was about 1.1 x 10(-3) mm/(side-time). The static friction coefficient was about 0.46 +/- 0.05. In particular, the fade ratios of friction coefficient in wet conditions under normal landing and overload landing were about -11% and 8%, respectively, which indicated the friction coefficient of the C/SiC brake materials was influenced slightly in wet conditions. The main wear mechanism was grain-abrasion. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：3002 / 3009

页数：8

共 18 条

[11]

Krenkel W, 2002, ADV ENG MATER, V4, P427, DOI 10.1002/1527-2648(20020717)4:7<427::AID-ADEM427>3.0.CO

[12]

2-C

[13]

Muhlratzer A., 2001, 4 INT C HIGH TEMP CE, P288

[14]

Pak Z.S., 2001, 4 INT CON HIGH TEMP, P820

[15] The morphology of silicon carbide in C/C-SiC composites [J].

Schulte-Fischedick, J ;

Zern, A ;

Mayer, J ;

Rühle, M ;

Friess, M ;

Krenkel, W ;

Kochendörfer, R .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 332 (1-2) :146-152

[16]

Vaidyaraman S., 2001, HIGH TEMP CERAM MATR, P802, DOI [10.1002/3527605622.ch122, DOI 10.1002/3527605622.CH122]

[17] Influence of water vapor and oxygen on the tribology of carbon materials with sp(2) valence configuration [J].

Yen, BK .

WEAR, 1996, 192 (1-2) :208-215

[18]

Zollfrank C, 2005, J AM CERAM SOC, V88, P51, DOI [10.1111/j.1551-2916.2004.00028.x, 10.1111/j.1555-2916.2004.00028.x]

← 1 2 →