C/C‐Sic Composites for Hot Structures and Advanced Friction Systems
C/C‐Sic Composites for Hot Structures and Advanced Friction Systems
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DOI：
10.1002/9780470294826.ch85
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发表时间：
2008-03
影响因子：
2.6
通讯作者：
W. Krenkel
中科院分区：
文献类型：
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作者：
W. Krenkel
最初，空间技术的需求在DLR的熔融渗透陶瓷基复合材料（C/C-SiC）的开发中起着决定性的作用。高质量比特性和耐极端温度性是新型航天器和火箭中喷气发动机和热防护系统所用材料的重要选择标准。在过去的几年里，C/C-SiC材料的性能和制造方法不断改进，因此，特别是制动行业现在可以分享这类新材料的利润。由C/C-SiC制成的制动盘和制动片为高性能车辆以及紧急制动系统提供了巨大的优势。这些制动材料主要基于碳和碳化硅，具有高而稳定的摩擦系数和低磨损率。原始尺寸的制动片和制动盘的原型已经制造出来，并由各自的制动系统制造商或最终用户成功测试。经过七年的发展，C/C-SiC制动材料现已进入高性能汽车、火车和电梯市场。它们的主要优点在于减少质量、不褪色特性、改善摩擦系数以及极低的磨损率
Originally, the demands in space technology played the decisive role in the DLRs development of melt-infiltrated ceramic matrix composite (C/C-SiC) materials. High mass-specific characteristics and extreme temperature resistance are important selection criteria for materials used in jet engines and thermal protection systems in new spacecraft and rockets. Within the last few years, the properties and the manufacturing methods of C/C-SiC materials were consistently improved, so that particularly the brake industry can now share the profits of this new class of material. Brake disks and pads made of C/C-SiC offer great advantages for high performance vehicles as well as emergency brake systems. Mainly based on carbon and silicon carbide these braking materials show high and stable coefficients of friction and low wear rates. Prototypes of originally sized pads as well as disks have been manufactured and were sucessfully tested by the respective brake system manufacturers or end-users. After seven years of development, C/C-SiC braking materials are now entering the market in high performance cars, trains, and lifts. Their main advantages lie in the reduced mass, their non-fading characteristics, their improved coefficient of friction, and their extremely low wear rates