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| 新型Ag-CuO-La2O3电接触材料的制备及其性能分析 |
| Preparation and Performances Analysis of a New Ag-CuO-La2O3 Electrical Contact Material |
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| DOI： |
| 中文关键词: 电接触材料 Ag-CuO-La2O3 微观结构 性能 电寿命 |
| 英文关键词: electrical contact material Ag-CuO-La2O3 microstructure performance service life |
| 基金项目: |
| Author Name | Affiliation | | ZHANG Naiqian | Shenyang Liming Aero-engine Group Co.Ltd., Shenyang 110043, China | | WANG Song | State Key Laboratory of Advanced Technologies for Comprehensive Utilization, Kunming Institute of Precious Metals, Kunming 650106, China | | SUN Shaoxia | State Key Laboratory of Advanced Technologies for Comprehensive Utilization, Kunming Institute of Precious Metals, Kunming 650106, China | | WANG Saibei | State Key Laboratory of Advanced Technologies for Comprehensive Utilization, Kunming Institute of Precious Metals, Kunming 650106, China | | XIE Ming | State Key Laboratory of Advanced Technologies for Comprehensive Utilization, Kunming Institute of Precious Metals, Kunming 650106, China | | HU Jieqiong | State Key Laboratory of Advanced Technologies for Comprehensive Utilization, Kunming Institute of Precious Metals, Kunming 650106, China |
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| 中文摘要: |
| 采用化学包覆和粉末冶金法制备了新型Ag-CuO-La2O3电接触材料，研究了新材料的微观结构和性能。结果表明，细小的CuO和La2O3颗粒高度弥散地分布于银基体中，新材料的密度为9.77 g.cm-3，电阻率为2.36 μΩ.cm，显微硬度(Hv0.2)为113。与相同工艺制备的Ag-SnO2传统电接触材料比较，新材料具有更好的室温加工性能、更优异的耐电弧侵蚀能力以及更长的电寿命。Ag-CuO-La2O3 新材料有望成为一种替代传统Ag-SnO2的新型电接触材料。 |
| 英文摘要: |
| A new electrical contact material, Ag-CuO-La2O3, was produced by chemical coating and powder metallurgy method, and its microstructure and performance were investigated. The results show that fine oxides of CuO and La2O3 have a uniform distribution in the silver matrix. Its density, resistivity and micro-hardness(Hv0.2) is 9.77 g.cm-3, 2.36 μΩ.cm and 113 respectively. Compared with convenient Ag-SnO2 electrical contact materials prepared by the same process, the new material has superior room temperature processing performance, better ability of anti-arc erosion and longer service life. The Ag-CuO-La2O3 material may be substitute for Ag-SnO2 as a new electrical contact material. |
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