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  • Electrical contact behavior of Ag-SnO2-In2O3 contact materials prepared . . .
    Using the results of open–close electrical contact performance testing, the electro-erosion mechanism of Ag-SnO 2-In 2 O 3 electrical contact materials prepared through internal oxidation of Ag-Sn-In alloy powders is clarified
  • Ag-SnO_2-Y_2O_3 Electrical Contact Materials Prepared by . . .
    It has better electric-conduct and heat-conduct property, excellent heat-resistance, good arc erosion-resistance and good weld-resistance properties So it is the optimum material replacing Ag-CdO Ag-SnO_2-Y_2O_3 contact material is prepared by alloy powder internal oxidation and modification of composite powders
  • 合金粉末预氧化法制备Ag-SnO_2-Y_2O_3电接触材料的研究
    本文通过合金粉末预氧化法、复合粉体改性处理技术来制备Ag-SnO2-Y2O3电接触材料,添加稀土后合金粉末容易氧化,氧化粉体经改性处理后可有效改善氧化物颗粒与银基体间的润湿性、改善材料的后续加工性能,并且所制备的Ag-SnO2-Y2O3材料密度高、组织均匀、不存在宏观偏析,SnO2和Y2O3颗粒在材料中弥散均匀分布。 收起 Ag-SnO_2 is a kind of new contact material without Cd developed in many countries in recent years
  • 合金粉末预氧化法制备Ag-SnO2-Y2O3电接触材料的研究
    本文通过合金粉末预氧化法、复合粉体改性处理技术来制备Ag-SnO2-Y2O3电接触材料, 添加稀土后合金粉末容易氧化, 氧化粉体经改性处理后可有效改善氧化物颗粒与银基体间的润湿性、改善材料的后续加工性能, 并且所制备的Ag-SnO2-Y2O3材料密度高、组织
  • Ag SnO 2 电接触材料的原位形成和掺杂,Journal of Alloys . . .
    摘要 采用自组装沉淀法和粉末冶金法制备了不同Zr和Fe掺杂浓度的Ag SnO2电触点材料。 通过扫描电子显微镜 (SEM) 结合 EDS 和 EBSD 系统研究了 Ag-SnO2 复合粉末和制备的 Ag SnO2 接触材料的微观结构。
  • Ag SnO2 electrical contact material and preparation method thereof
    The preparation method of the invention comprises the following steps: mixing the Ag powder and the SnO2 powder; and sintering and processing the mixture into the electrical contact
  • Effect of Y2O3 on electric performance of Ag–SnO2–Y2O3 composite . . .
    This study successfully prepared Ag–SnO2–Y2O3 composite electrical contact materials using hot-press sintering The effects of different Y2O3 contents (ranging from 0 to 4 wt %) on the microstructure, densification, hardness, electrical conductivity, arc erosion resistance, and mass loss of Ag-SnO2 composites were investigated
  • Properties of Ag‐SnO2 Contact Materials for Low‐Voltage Electrical . . .
    In this paper, the relationship between additive particle size and properties of Ag-SnO2 contact materials was studied La2O3 and Fe2O3 were selected as additives for contact materials, and the pro
  • 合金粉末预氧化法制备Ag-SnO_2-Y_2O_3电接触材料的研究 . . .
    本文通过合金粉末预氧化法、复合粉体改性处理技术来制备Ag2SnO22Y2O3电接触材料,添 Ag2SnO22Y2O3材料密度高、组织均匀、不存在宏观偏析,SnO2和Y2O3颗粒在材料中弥散均匀分布。 其制备工艺通常采用合金内氧化法 →烧结→压力加工)两大类。 前一种方法制备的材 后一种方法勿需考虑内氧化,但由于Ag 电接触材料。 利用感应熔铸技术制备AgSn 形、烧结、挤压和压力加工工艺制备丝材样品。 化。 氧化粉体经改性处理后经过成形、烧结和压力 加工工序制成丝材。 采用D Max2RC型X射线衍射 对氧化前后的合金粉进行X射线衍射分析。 用光 材料的硬度。 μm的合金粉末形貌见图1 (a)和 (b)所示。 由粉末 单一,大多数为等轴晶。 谱如图2所示。
  • Preparation and Electrical life performance of the Multi-component . . .
    Herein, in order to explore the impact of the type and content of the modified components on the preparation process, microstructure, microhardness, temperature rise and electrical life of the modified Ag SnO2In2O3 contact materials, the modified AgSnIn alloys are synthesized by medium-frequency smelting and casting process, and then the





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