| C/SiC摩擦材料的制备及摩擦磨损性能 |
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| 引用本文： | 范尚武,徐永东,张立同,成来飞,楼建军. C/SiC摩擦材料的制备及摩擦磨损性能[J]. 无机材料学报, 2006, 21(4): 927-934. DOI: 10.3724/SP.J.1077.2006.00927 |
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| 作者姓名： | 范尚武 徐永东 张立同 成来飞 楼建军 |
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| 作者单位： | 西北工业大学超高温结构复合材料国防科技重点实验室, 西安 710072 |
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| 基金项目： | 陕西省自然科学基金;教育部跨世纪优秀人才培养计划 |
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| 摘 要： | 通过化学气相渗透法(CVI)结合反应熔体浸渗法(RMI)制备了低成本、高性能的C/SiC飞机摩擦材料, 并模拟飞机正常着陆条件进行了摩擦磨损实验. 实验结果表明: C/SiC是比C/C更优的飞机摩擦材料, 具有动、静摩擦系数高(分别为0.34、0.41), 湿态几乎无衰减(约2.9%), 磨损小(约1.9μm/次), 摩擦性能稳定等特点. 并采用金相显微镜、扫描电镜等对C/SiC摩擦材料的摩擦面以及磨屑形貌进行了观察, 并对其磨损机理进行了探索. 结果表明, 磨损机理以磨粒磨损为主, 同时由于垂直于摩擦面的纤维束增强了其层间抗剪切能力, 从而提高了其抗磨损性能.
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| 关 键 词： | C/SiC 摩擦材料 摩擦磨损性能 |
| 文章编号： | 1000-324X（2006）04-0927-08 |
| 收稿时间： | 2005-08-01 |
| 修稿时间： | 2005-08-012005-09-19 |
Preparation and Tribological Properties of C/SiC Friction Materials |
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| FAN Shang-Wu,XU Yong-Dong,ZHANG Li-Tong,CHENG Lai-Fei,LOU Jian-Jun. Preparation and Tribological Properties of C/SiC Friction Materials[J]. Journal of Inorganic Materials, 2006, 21(4): 927-934. DOI: 10.3724/SP.J.1077.2006.00927 |
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| Authors: | FAN Shang-Wu XU Yong-Dong ZHANG Li-Tong CHENG Lai-Fei LOU Jian-Jun |
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| Affiliation: | National Key Laboratory of Thermostructure Composite Materials, Northwestern
Polytechnical University, Xi'an, 710072, China |
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| Abstract: | The cost effective and high performance carbon/silicon carbide aircraft friction materials were prepared by the combination of chemical vapor infiltration (CVI) and reactive melt infiltration (RMI). The tribological properties of the as-manufactured C/SiC composites were measured under the simulated conditions of normal landing of the aircraft. The test results indicate the more excellent tribological properties of C/SiC composites than that of C/C composites. The average coefficients of kinetic friction and static friction are about 0.34 and 0.41, respectively, the wet fading ratio is about 2.9%, the linear wear rate is less then 1.9μm·cycle-1, and the coefficient of friction is stable. The surface microstructure and wear debris on wear-induced surfaces of C/SiC disks were investigated by optical microscope and SEM. The results indicate that the main wear mechanism of the C/SiC composites is the grain-abrasion. The wear resistance is improved due to the enhanced in-plane shear strength derived from the fiber bundle vertical to the friction surface. |
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| Keywords: | C/SiC |
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