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電流對碳納米管增強銅基復合材料載流摩擦學性能的影響
摘要:采用粉末冶金方法在相同的工藝條件下制備純銅和碳納米管含量為10%(體積分數(shù))的銅基復合材料.在一種銷盤式載流摩擦磨損試驗機上考察了不同電流條件下2種材料的載流摩擦磨損性能.結(jié)果表明:純銅和銅基復合材料的摩擦系數(shù)和磨損率均隨電流的增大而增大,但是電流對純銅材料的影響更加顯著;純銅材料的主導磨損機制是電弧燒蝕磨損,而銅基復合材料的主導磨損機制是塑性流動變形;碳納米管可以改善銅基復合材料的載流摩擦磨損性能.Abstract:Cu matrix composite reinforced with 10% (volume fraction) carbon nanotubes (CNTs/Cu) and pure Cu bulk were prepared by powder metallurgy techniques under the same consolidation processing condition.The effect of electrical current on tribological property of the materials was investigated by using a pin-on-disk friction and wear tester.The results show that the friction coefficient and wear rate of CNTs/Cu composite as well as those of pure Cu bulk increase with increasing the electrical current without exception,and the effect of electrical current is more obvious on tribological property of pure Cu bulk than on that of CNTs/Cu composite; the dominant wear mechanisms are arc erosion wear and plastic flow deformation,respectively; CNTs can improve tribological property of Cu matrix composites with electrical current. 作者: 許瑋[1] 胡銳[2] 李金山[2] 傅恒志[2] Author: XU Wei[1] HU Rui[2] LI Jin-shan[2] FU Heng-zhi[2] 作者單位: 西北工業(yè)大學凝固技術(shù)國家重點實驗室,西安 710072;山西大同大學工學院,大同 037003西北工業(yè)大學凝固技術(shù)國家重點實驗室,西安,710072 期 刊: 中國有色金屬學報(英文版) ISTICEISCI Journal: Transactions of Nonferrous Metals Society of China 年,卷(期): 2011, 21(10) 分類號: Q946 關(guān)鍵詞: 碳納米管銅基復合材料 純銅 載流 摩擦學性能 Keywords: CNTs/Cu composite pure Cu bulk electrical current tribological property 機標分類號: TG1 TG2 機標關(guān)鍵詞: 電流 碳納米管 增強 銅基復合材料 載流摩擦學性能 carbon nanotubes Cu matrix composite tribological property 摩擦磨損性能 friction coefficient powder metallurgy friction and wear 磨損機制 純銅材料 wear mechanisms 摩擦磨損試驗機 粉末冶金方法 plastic flow erosion wear techniques 基金項目: the National Basic Research Program of China 電流對碳納米管增強銅基復合材料載流摩擦學性能的影響[期刊論文] 中國有色金屬學報(英文版) --2011, 21(10)許瑋 胡銳 李金山 傅恒志采用粉末冶金方法在相同的工藝條件下制備純銅和碳納米管含量為10%(體積分數(shù))的銅基復合材料.在一種銷盤式載流摩擦磨損試驗機上考察了不同電流條件下2種材料的載流摩擦磨損性能.結(jié)果表明:純銅和銅基復合材料的摩擦系數(shù)...【電流對碳納米管增強銅基復合材料載流摩擦學性能的影響】相關(guān)文章:
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