Microwave Heating of Pure Copper Powder with Varying Particle Size and Porosity
Microwave Heating of Pure Copper Powder with Varying Particle Size and Porosity
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DOI：
10.1080/08327823.2008.11688599
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发表时间：
2008-01
影响因子：
1.5
通讯作者：
A. Mondal;D. Agrawal;A. Upadhyaya
中科院分区：
文献类型：
--
作者：
A. Mondal;D. Agrawal;A. Upadhyaya
近年来，金属/合金粉末的微波处理在材料合成领域获得了相当大的潜力。微波加热因其各种优点而得到认可，例如：节省时间和能量、快速加热速率、显著降低的加工周期时间和温度、精细的微观结构和改善的机械性能、更好的产品性能等。具有束缚电荷的材料的微波材料相互作用已被充分建立，但对于高导电性材料如金属，没有太多的信息可用于解释微波加热和随后的金属材料烧结的机理。本研究描述了如何导电粉末金属，如铜的热分布随粒度和孔隙率含量的变化，换句话说，初始绿色密度时，材料暴露于2.45 GHz的微波辐射在多模微波炉。
In recent years, microwave processing of metal/alloy powders have gained considerable potential in the field of material synthesis. Microwave heating is recognized for its various advantages such as: time and energy saving, rapid heating rates, considerably reduced processing cycle time and temperature, fine microstructures and improved mechanical properties, better product performance, etc. Microwave material interaction for materials having bound charge are well established, but for highly conductive materials like metals, there is not much information available to interpret the mechanism of microwave heating and subsequent sintering of metallic materials. The present study describes how the thermal profile of electrically conductive powder metal like copper changes with particle size and also with porosity content; in other words, initial green density when the material is exposed to 2.45 GHz microwave radiation in a multimode microwave furnace.