| 石墨烯含量对多层石墨烯/银复合材料组织和性能的影响 |
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| 引用本文： | 王 松,王塞北,谢 明,刘满门,李爱坤,胡洁琼. 石墨烯含量对多层石墨烯/银复合材料组织和性能的影响[J]. 贵金属, 2016, 37(2): 51-56. DOI: 10.3969/j.issn.1004-0676.2016.02.010 |
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| 作者姓名： | 王 松 王塞北 谢 明 刘满门 李爱坤 胡洁琼 |
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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 |
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| 摘 要： | 采用粉末冶金法制备了多层石墨烯/银电接触复合材料，并系统研究了多层石墨烯含量对多层石墨烯/银复合材料微观组织、导电率、硬度及电弧侵蚀的影响。结果表明，复合材料密度随多层石墨烯含量的增加而减小。多层石墨烯含量为0.5%的石墨烯/银复合材料具有最佳的导电率，为84.5% IACS。当多层石墨烯含量高于2.0%以后，复合材料硬度降低幅度明显增大。多层石墨烯含量为1.5%的多层石墨烯/银电接触复合材料表现出最优异的抗电弧侵蚀性能。
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| 关 键 词： | 电接触材料 石墨烯/银 微观结构 硬度 电侵蚀 |
Effect of Graphene Content on Microstructure and Properties of Multilayer Graphene/Silver Composite |
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| WANG Song,WANG Saibei,XIE Ming,LIU Manmen,LI Aikun and HU Jieqiong. Effect of Graphene Content on Microstructure and Properties of Multilayer Graphene/Silver Composite[J]. Precious Metals, 2016, 37(2): 51-56. DOI: 10.3969/j.issn.1004-0676.2016.02.010 |
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| Authors: | WANG Song WANG Saibei XIE Ming LIU Manmen LI Aikun HU Jieqiong |
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| Affiliation: | State Key Laboratory of Advanced Technologies for Comprehensive Utilization,Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization,Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization,Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization,Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization,Kunming Institute of Precious Metals, Kunming 650106, China and State Key Laboratory of Advanced Technologies for Comprehensive Utilization,Kunming Institute of Precious Metals, Kunming 650106, China |
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| Abstract: | Multilayer graphene/silver electrical contact composites were prepared by powder metallurgy. Effects of multilayer graphene content on the microstructure, electrical conductivity, hardness and arc erosion of the multilayer graphene/silver composites were studied in details. Results show that the densities of the green and sintered composites decrease with increasing the multilayer graphene content. The highest electrical conductivity value of 84.5% IACS can be accomplished when the content of the multilayer grapheme is 0.5% in reinforced composite. When the amount of the multilayer graphene is higher than 2.0%, the declining rate in hardness significantly increases. The multilayer graphene/silver electrical contact composites with 1.5% the multilayer grapheme displays the best anti-arc erosion performance. |
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| Keywords: | electrical contact material graphene/silver microstructure hardness arc erosion |
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