| 新型AgZrB2 触头材料的制备及电气性能 |
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| 引用本文： | 邱艳茹,王献辉,梁燕,倪菁艺,刘继拓,李航宇,陈秋羽.新型AgZrB2 触头材料的制备及电气性能[J].稀有金属材料与工程,2022,51(11):4031-4038. |
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| 作者姓名： | 邱艳茹 王献辉 梁燕 倪菁艺 刘继拓 李航宇 陈秋羽 |
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| 作者单位： | 西安理工大学 材料科学与工程学院，陕西 西安 710048,西安理工大学 材料科学与工程学院，陕西 西安 710048,西安理工大学 材料科学与工程学院，陕西 西安 710048,西安理工大学 材料科学与工程学院，陕西 西安 710048,西安理工大学 材料科学与工程学院，陕西 西安 710048,西安理工大学 材料科学与工程学院，陕西 西安 710048,西安理工大学 材料科学与工程学院，陕西 西安 710048 |
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| 基金项目： | National Natural Science Foundation of China (No.51971173) |
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| 摘 要： | 采用超声、球磨和放电等离子烧结相结合的方法制备了不同ZrB2含量（3%，5%，7%，质量分数）的新型AgZrB2触头材料，并通过电接触试验研究了触头材料的电弧侵蚀和材料转移行为。结果表明，ZrB2含量显著影响AgZrB2触头材料的耐电弧侵蚀性能。Ag-3% ZrB2触头材料具有稳定的闭合/分断燃弧能量和持续时间，表现出较好的耐电弧侵蚀性能。但是，过多的ZrB2会导致更高的闭合燃弧能量和更长的闭合燃弧时间，并且分断燃弧能量和时间会产生较大的波动，电弧侵蚀较为严重，这说明过量的ZrB2不利于提高触头材料的耐电弧侵蚀性能。此外，Ag-3% ZrB2和Ag-5% ZrB2触头材料具有相同的材料转移模式——从阳极向阴极转移，而Ag-7% ZrB2触头材料则呈现出相反的转移模式——从阴极向阳极转移。
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| 关 键 词： | 银基电触头 ZrB2 电弧侵蚀 材料转移 |
| 收稿时间： | 2021/11/17 0:00:00 |
| 修稿时间： | 2022/2/11 0:00:00 |
Preparation and Electrical Characteristics of Novel AgZrB2 Contact Materials |
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| Qiu Yanru,Wang Xianhui,Liang Yan,Ni Jingyi,Liu Jituo,Li Hangyu and Chen Qiuyu.Preparation and Electrical Characteristics of Novel AgZrB2 Contact Materials[J].Rare Metal Materials and Engineering,2022,51(11):4031-4038. |
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| Authors: | Qiu Yanru Wang Xianhui Liang Yan Ni Jingyi Liu Jituo Li Hangyu and Chen Qiuyu |
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| Affiliation: | School of Materials Science and Engineering, Xi ''an University of Technology, Xi ''an 710048, China,School of Materials Science and Engineering, Xi ''an University of Technology, Xi ''an 710048, China,School of Materials Science and Engineering, Xi ''an University of Technology, Xi ''an 710048, China,School of Materials Science and Engineering, Xi ''an University of Technology, Xi ''an 710048, China,School of Materials Science and Engineering, Xi ''an University of Technology, Xi ''an 710048, China,School of Materials Science and Engineering, Xi ''an University of Technology, Xi ''an 710048, China,School of Materials Science and Engineering, Xi ''an University of Technology, Xi ''an 710048, China |
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| Abstract: | The novel AgZrB2 electrical contact materials with different ZrB2 contents were prepared by the combination method of ultrasonication, ball milling, and spark plasma sintering, and the arc erosion and material transfer behavior were investigated by the electrical contact tests. The results show that the ZrB2 content significantly affects the arc erosion resistance of AgZrB2 electrical contact materials. The Ag-3wt% ZrB2 contact material presents the stable make/break-arc energy and duration, indicating the excellent arc erosion resistance. However, the increased ZrB2 content results in higher make-arc energy and longer make-arc duration with large fluctuations of break arc energy and duration, leading to the severe arc erosion. This result suggests that the excessive ZrB2 is not beneficial to the enhancement of arc erosion resistance. Moreover, it is found that the Ag-3wt% ZrB2 and Ag-5wt% ZrB2 contact materials have the same material transfer mode from anode to cathode, whereas the Ag-7wt% ZrB2 contact material has the opposite transfer mode from cathode to anode. |
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| Keywords: | Ag-based electrical contact ZrB2 arc erosion material transfer |
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