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Journal of Microwave Power
and Electromagnetic Energy (JMPEE) |
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TITLE |
Microwave Heating of Pure Copper Powder with Varying
Particle Size and Porosity
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AUTHORS |
Avijit
Mondal, Dinesh Agrawal and Anish Upadhyaya 2009 43 1 5-10 |
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Abstract 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. Key
Words: Cu metal powder,
microwave sintering, particle size, porosity |
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