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发明授权
CN106636992B 一种CNTs和CNFs协同增强铜基复合材料及制备方法 有权

一种CNTs和CNFs协同增强铜基复合材料及制备方法
摘要：
本发明公开了一种CNTs和CNFs协同增强铜基复合材料，按重量百分比包括如下组分：经表面改性的CNFs和经表面改性的CNTs的质量分数之和为0.1‑5%，石墨的含量为0.5‑8%，Ti3SiC2含量为6‑15%，La元素的含量为0.01‑0.5%，余量为铜；所述经表面改性的CNTs是采用没食子酸水溶液改性得到的；所述经表面改性的CNFs是采用芦丁水溶液改性得到的。本发明的铜基复合材料中，CNTs和CNFs分散性较好，杂质含量低，且保持了完整的表面形貌，与石墨粉末、Ti3SiC2粉末、La以及铜基体发挥共增强作用，显著提高了铜基复合材料的力学及耐摩擦磨损性能，同时还具有优异的强度和耐冲击性。
摘要（英）：

The invention discloses a CNTs and CNFs synergetic enhanced copper base composite material. The copper base composite material comprises the following components in percentage by weight: the mass fraction sum of surface-modified CNFs and surface-modified CNTs is 0.1-5%; the content of graphite is 0.5-8%; the content of Ti3SiC2 is 6-15%; the content of La element is 0.01-0.5%; and the balance is copper; the surface-modified CNTs is obtained by modifying gallic acid water solution; and the surface-modified CNFs is obtained by modifying rutin water solution. In the copper base composite material, the CNTs and the CNFs are better in dispersibility and low in impurity content, keep complete surface topography, exert common reinforcement effect with graphite powder, Ti3SiC2 powder, La and copper matrix, prominently improve the mechanical performance and the friction wear resistance of the copper base composite material, and meanwhile, are excellent in strength and impact resistance.

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