| 不同含量Ag掺杂对YBa_2Cu_3O_x和Bi_2Sr_2CaCu_2O_x固体自润滑材料摩擦学性能的影响 |
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| 引用本文： | 王旻璐,李长生,董丽荣,彭义,唐华.不同含量Ag掺杂对YBa_2Cu_3O_x和Bi_2Sr_2CaCu_2O_x固体自润滑材料摩擦学性能的影响[J].材料导报,2009,23(20). |
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| 作者姓名： | 王旻璐 李长生 董丽荣 彭义 唐华 |
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| 作者单位： | 1. 江苏大学材料学院摩擦学省重点实验室,镇江,212013
2. 江苏大学材料学院摩擦学省重点实验室,镇江,212013;吉林师范大学物理学院,四平,136000 |
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| 摘 要： | 通过固相反应法制备了YBa2Cu3Ox/Ag和Bi2Sr2CaCu2Or/Ag固体自润滑材料.采用XRD和SEM检测了材料的成分以及相结构.XRD结果表明,所制备的YBa2Cu3Ox/Ag和Bi2Sr2CaCu2Ox/Ag固体自润滑复合材料都是由超导相和Ag相组成.采用销一盘式摩擦试验机研究了试样在常温下的摩擦学性能.结果表明,室温下纯YBa2Cu3Ox的摩擦系数为0.68～0.95,当掺杂15%(质量分数)Ag时,摩擦系数减小到最低,为0.11左右;纯Bi2Sr2CaCu2Ox的摩擦系数为0.21～0.22,当掺杂10%(质量分数)Ag时,摩擦系数降低到最低,为0.18左右.在超导体中添加Ag可有效改善材料的摩擦学性能.Ag可在材料摩擦接触表面形成一层Ag膜,从而有效改善接触表面,达到减小摩擦力的效果.
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| 关 键 词： | 摩擦性能 固体自润滑材料 |
Comparison in Tribological Properties of YBa_2Cu_3O_x/Ag and Bi_2Sr_2CaCu_2O_x/Ag Self-lubricating Composites |
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| WANG Minlu,LI Changsheng,DONG LiRong,PENG Yi,TANG Hua.Comparison in Tribological Properties of YBa_2Cu_3O_x/Ag and Bi_2Sr_2CaCu_2O_x/Ag Self-lubricating Composites[J].Materials Review,2009,23(20). |
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| Authors: | WANG Minlu LI Changsheng DONG LiRong PENG Yi TANG Hua |
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| Affiliation: | WANG Minlu1,LI Changsheng1,DONG LiRong1,2,PENG Yi1,TANG Hua1(1 Province Key Laboratory of Materials Tribology,School of Material Science & Engineering,Jiangsu University,Zhenjiang 212013,2 School of Physicals,Jilin Normal University,Siping 136000) |
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| Abstract: | The YBa2Cu3Ox/Ag and Bi2Sr2CaCu2Ox/Ag self-lubricating composites are prepared using powder metallurgic method.The structure and morphology of the as-synthesized samples are characterized by XRD and SEM.XRD analysis indicate that YBa2Cu3Ox/Ag and Bi2Sr2CaCu2Ox/Ag self-lubricating composites are composed of superconductor phase and Ag phase.The tribological properties of the composites are studied by pin-on-disk tribometer at room temperature.The results show that the lowest friction coefficient of YBa2Cu3Ox... |
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| Keywords: | YBa2Cu3Ox/Ag Bi2Sr2CaCu2Ox/Ag |
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