| 银-石墨烯复合材料的滑动摩擦磨损性能 |
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| 引用本文： | 王松,谢明,陈永泰,刘满门,陈松,王塞北,胡洁琼,李爱坤.银-石墨烯复合材料的滑动摩擦磨损性能[J].贵金属,2019,40(1):63-69. |
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| 作者姓名： | 王松 谢明 陈永泰 刘满门 陈松 王塞北 胡洁琼 李爱坤 |
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| 作者单位： | 昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明,650106;昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明,650106;昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明,650106;昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明,650106;昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明,650106;昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明,650106;昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明,650106;昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明,650106 |
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| 基金项目： | 国家自然科学基金项目(51707087)、云南省应用基础研究项目(2018FB094、2016FB092)。 |
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| 摘 要： | 采用球磨混粉、冷等静压和真空烧结的工艺流程制备了含0.5%~2.0%石墨烯的银-石墨烯复合材料，并对复合材料进行销盘式摩擦磨损试验以研究其大气环境滑动摩擦磨损性能。研究结果表明，因石墨烯易团聚，石墨烯含量限于1.5%时能够有效改善复合材料的性能。与未增强的银相比，由于在接触表面形成自润滑碳质膜，银-石墨烯复合材料表现出较低的摩擦系数、较少的磨损量和较低的接触表面温度。随石墨烯含量的增加，复合材料的摩擦系数和磨损量均下降。复合材料的主要磨损机制为粘着磨损和磨料磨损。
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| 关 键 词： | 复合材料 银-石墨烯 摩擦系数 磨损量 |
| 收稿时间： | 2018/3/16 0:00:00 |
Sliding Friction and Wear Properties of Ag-graphene Composites |
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| WANG Song,XIE Ming,CHEN Yongtai,LIU Manmen,CHEN Song,WANG Saibei,HU Jieqiong and LI Aikun.Sliding Friction and Wear Properties of Ag-graphene Composites[J].Precious Metals,2019,40(1):63-69. |
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| Authors: | WANG Song XIE Ming CHEN Yongtai LIU Manmen CHEN Song WANG Saibei HU Jieqiong and LI Aikun |
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| Affiliation: | State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China and State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China |
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| Abstract: | Ag-graphene composites with 0.5% to 2.0% of graphene were fabricated by ball milling, cold isostatic pressing and vacuum sintering. Their sliding friction and wear properties were tested in a pin-on-disc under sliding contact in air. The results indicated that the graphene content was limited to 1.5%due to its the agglomeration properties, and that the composite had the best performance. The composites exhibited lower coefficient of friction, less wear loss and lower surface friction temperature compared to unreinforced silver due to the formation of a self-lubricating carbonaceous film on the contact surface. The friction coefficient and the wear loss of the composites decrease with increase in graphene content. The main wear mechanisms of the composites are adhesive wear and abrasive wear. |
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| Keywords: | composites Ag-graphene coefficient of friction wear loss |
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