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電流對(duì)碳納米管增強(qiáng)銅基復(fù)合材料載流摩擦學(xué)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?jǐn)?shù))的銅基復(fù)合材料.在一種銷盤式載流摩擦磨損試驗(yàn)機(jī)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(fù)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(duì)純銅材料的影響更加顯著;純銅材料的主導(dǎo)磨損機(jī)制是電弧燒蝕磨損,而銅基復(fù)合材料的主導(dǎo)磨損機(jī)制是塑性流動(dòng)變形;碳納米管可以改善銅基復(fù)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(xué)凝固技術(shù)國家重點(diǎn)實(shí)驗(yàn)室,西安 710072;山西大同大學(xué)工學(xué)院,大同 037003西北工業(yè)大學(xué)凝固技術(shù)國家重點(diǎn)實(shí)驗(yàn)室,西安,710072 期 刊: 中國有色金屬學(xué)報(bào)(英文版) ISTICEISCI Journal: Transactions of Nonferrous Metals Society of China 年,卷(期): 2011, 21(10) 分類號(hào): Q946 關(guān)鍵詞: 碳納米管銅基復(fù)合材料 純銅 載流 摩擦學(xué)性能 Keywords: CNTs/Cu composite pure Cu bulk electrical current tribological property 機(jī)標(biāo)分類號(hào): TG1 TG2 機(jī)標(biāo)關(guān)鍵詞: 電流 碳納米管 增強(qiáng) 銅基復(fù)合材料 載流摩擦學(xué)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(jī)制 純銅材料 wear mechanisms 摩擦磨損試驗(yàn)機(jī) 粉末冶金方法 plastic flow erosion wear techniques 基金項(xiàng)目: the National Basic Research Program of China 電流對(duì)碳納米管增強(qiáng)銅基復(fù)合材料載流摩擦學(xué)性能的影響[期刊論文] 中國有色金屬學(xué)報(bào)(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?jǐn)?shù))的銅基復(fù)合材料.在一種銷盤式載流摩擦磨損試驗(yàn)機(jī)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(fù)合材料的摩擦系數(shù)...【電流對(duì)碳納米管增強(qiáng)銅基復(fù)合材料載流摩擦學(xué)性能的影響】相關(guān)文章:
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