| 圆周速度对碳纳米管-银-石墨复合材料接触电压降的影响 |
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| 引用本文： | 徐屹,凤仪,王松林,张学斌,张敏,沈剑.圆周速度对碳纳米管-银-石墨复合材料接触电压降的影响[J].功能材料,2006,37(2):225-227. |
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| 作者姓名： | 徐屹 凤仪 王松林 张学斌 张敏 沈剑 |
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| 作者单位： | 合肥工业大学,材料科学与工程学院,安徽,合肥,230009 |
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| 基金项目： | 中国科学院资助项目
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安徽省自然科学基金 |
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| 摘 要： | 采用粉末冶金方法制备碳纳米管-银-石墨复合材料,研究圆周速度对复合材料接触电压降的影响.结果表明,当压力一定时,随着圆周速度的增大,复合材料的接触电压降略有增加,而圆周速度增大到一定值后,接触电压降急剧增加并伴有火花磨损出现.压力较小时(1N/cm2)圆周速度为7.5m/s时就出现电火花,压力较大时(2.5N/cm2)圆周速度为15m/s出现电火花.在圆周速度不变的条件下,接触电压降先升后降最后趋于稳定.
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| 关 键 词： | 碳纳米管-银-石墨复合材料 接触电压降 圆周速度 润滑膜 |
| 文章编号： | 1001-9731(2006)02-0225-03 |
| 收稿时间： | 2005-06-14 |
| 修稿时间： | 2005-09-30 |
Effect of circular velocity on the contact voltage drop of CNT-Ag-G composite |
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| XU Yi,FENG Yi,WANG Song-lin,ZHANG Xue-bin,ZHANG Min,SHEN Jian.Effect of circular velocity on the contact voltage drop of CNT-Ag-G composite[J].Journal of Functional Materials,2006,37(2):225-227. |
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| Authors: | XU Yi FENG Yi WANG Song-lin ZHANG Xue-bin ZHANG Min SHEN Jian |
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| Affiliation: | Department of Material Science and Engineering, Hefei University of Technology, Herei 230009,China |
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| Abstract: | In this paper,CNT-Ag-G composite brushes were fabricated by means of powder metallurgy,and the effect of the circular velocity on the contact voltage drop of CNT-Ag-G composite was studied.As the results show,when the pressure is certain,the contact voltage drop increases a little with the increase of the circular velocity,while the circular velocity reaches a definite value,the contact voltage drop increases sharply with the electric spark.When the pressure is low(1N/cm~2),electric spark comes out when the circular velocity reaches 7.5m/s.While the pressure becomes higher(2.5N/cm~2),electric spark comes out until 15m/s.Under the condition of constant circular velocity,the contact voltage drop curve falls down after it ascends first,and finally tends to be stabile. |
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| Keywords: | CNT-Ag-G composite contact voltage drop circular velocity lubrication film |
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