| 不同方法制备的AgSnO2TiB2 电接触材料的微观结构和电弧侵蚀行为 |
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| 引用本文： | 刘彦峰,王献辉,何旋,万梦豫,苏亚宁,叱小彤,陈婷婷,苗雨,王立钊. 不同方法制备的AgSnO2TiB2 电接触材料的微观结构和电弧侵蚀行为[J]. 稀有金属材料与工程, 2022, 51(4): 1164-1171 |
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| 作者姓名： | 刘彦峰 王献辉 何旋 万梦豫 苏亚宁 叱小彤 陈婷婷 苗雨 王立钊 |
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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;商洛学院 化学工程与现代材料学院，陕西 商洛 726000,西安理工大学 材料科学与工程学院，陕西 西安 710048,商洛学院 化学工程与现代材料学院，陕西 商洛 726000,商洛学院 化学工程与现代材料学院，陕西 商洛 726000,商洛学院 化学工程与现代材料学院，陕西 商洛 726000,商洛学院 化学工程与现代材料学院，陕西 商洛 726000,商洛学院 化学工程与现代材料学院，陕西 商洛 726000,商洛学院 化学工程与现代材料学院，陕西 商洛 726000,商洛学院 化学工程与现代材料学院，陕西 商洛 726000 |
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| 基金项目： | 国家自然科学基金(No. 51971173)，国家大学生创新创业训练项目(No. S202011396002, S202011396005)，省级大学生创新创业训练项目(No. S202111396030)，商洛市创新团队项目(No. SK2019-75)，陕西省教育厅科研项目(20JK0618)。 |
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| 摘 要： | 分别采用球磨法、可溶性淀粉模板法和滤纸模板法制备了AgSnO2TiB2复合粉末，并利用火花等离子体烧结技术（SPS）制备了块体材料。对Ag4%SnO24%TiB2（质量分数）电接触材料的物理性能和电弧侵蚀特性进行了研究。结果表明，模板的空间限域效应有效地改善了增强相在基体中的均匀分散，提高了Ag4%SnO24%TiB2接触材料的导电率和硬度。与球磨法相比，滤纸模板法和淀粉模板法制备的Ag4%SnO24%TiB2复合材料的电导率分别增加了12.18倍和9.60倍， 显微硬度分别增加了17.10%和33.94%。滤纸模板更有利于SnO2和TiB2的均匀分散，减少集中电弧侵蚀和飞溅损失，因此具有更好的抗弧蚀性。
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| 关 键 词： | 模板法 电接触材料 物理性能 电弧侵蚀特性 |
| 收稿时间： | 2021-09-30 |
| 修稿时间： | 2022-02-10 |
Microstructure and Arc Erosion Behavior of AgSnO2TiB2 Contact Material Prepared by Different Methods |
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| Liu Yanfeng,Wang Xianhui,He Xuan,Wan Mengyu,Su Yaning,Chi Xiaotong,Chen Tingting,Miao Yu and Wang Lizhao. Microstructure and Arc Erosion Behavior of AgSnO2TiB2 Contact Material Prepared by Different Methods[J]. Rare Metal Materials and Engineering, 2022, 51(4): 1164-1171 |
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| Authors: | Liu Yanfeng Wang Xianhui He Xuan Wan Mengyu Su Yaning Chi Xiaotong Chen Tingting Miao Yu Wang Lizhao |
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| Affiliation: | School of Materials Science and Engineering, Xi''an University of Technology, Xi''an 710048, China;School of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China,School of Materials Science and Engineering, Xi''an University of Technology, Xi''an 710048, China,School of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China,School of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China,School of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China,School of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China,School of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China,School of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China,School of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China |
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| Abstract: | The AgSnO2TiB2 composite powders were synthesized by the ball milling, soluble starch template and filter paper template methods, and subsequently consolidated by spark plasma sintering (SPS). The physical properties and arc erosion behavior of Ag4wt%- SnO24wt%TiB2 contact materials were investigated. The results reveal that the spatial domain-limiting effects of the template can remarkably improve the dispersion of the reinforcements in the Ag matrix, and then electrical conductivity and hardness of Ag4wt%-SnO24wt%TiB2 contact materials are increased. As compared to the ball milling, the electrical conductivity of Ag4wt%SnO24wt%TiB2 composites fabricated by filter paper template and starch template method is increased by 12.18 and 9.60 times, while the microhardness is increased by 17.10% and 33.94%, respectively. The filter paper template is more beneficial for the uniform dispersion of SnO2 and TiB2, which can alleviate concentrated arc erosion and reduce splash, thereby exhibiting better arc erosion resistance. |
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| Keywords: | template method contact material physical properties arc erosion characteristic |
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