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Microstructure and melting behavior of tin nanoparticles embedded in alumina matrix processed by ball milling

机译:球磨加工嵌入氧化铝基体中的锡纳米粒子的微观结构和熔融行为

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摘要

Tin dioxide and aluminum powders were ball milled for different time periods. Sn particles embedded in Al_2O_3 matrix formed through a displacement reaction after ball milling. However, SnO_2 cores remain within some larger particles, while in smaller particles pure Sn cores exist. The embedded Sn particle size was found to increase with the milling time, which is attributed to the thermal effect provided by the exothermic displacement reaction during prplonged milling. Melting point depressions were observed. The melting temperatures of the Sn particles scale linearly with the inverse particle sizes. The extent of melting point depressions is observed to be slightly larger than those in the literature. This is ascribed to the simultaneous presence of Sn-Al_2O_3 and Sn-SnO_2 interfaces.
机译:将二氧化锡和铝粉球磨不同的时间。球磨后,通过置换反应形成嵌入Al_2O_3基体中的Sn颗粒。但是,SnO_2核保留在一些较大的粒子中,而在较小的粒子中则存在纯Sn核。发现包埋的Sn粒径随研磨时间而增加,这归因于长时间研磨过程中放热置换反应提供的热效应。观察到熔点降低。 Sn颗粒的熔融温度与相反的粒径成线性比例。观察到熔点降低的程度比文献中的稍大。这归因于同时存在Sn-Al_2O_3和Sn-SnO_2接口。

著录项

  • 来源
    《Materials Science and Engineering》 |2014年第10期|59-66|共8页
  • 作者单位

    Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan;

    Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan;

    Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan;

    Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan;

    Institute of Materials Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Nanomaterials; Tin; Ball milling; Thermal property;

    机译:纳米材料锡;球磨;热性质;

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