Mechanism for the formation of SiC by carbothermal reduction reaction using a microwave heating technique
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概要
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A pure phase of SiC was formed by microwave heating (2.45 GHz) a powder mixture consisting of SiO2:carbon black in a 1:3 molar ratio at 1300°C for 0.5 h in a nitrogen atmosphere. In contrast, when the same powder mixture was heated at 1700°C for 0.5 h in a nitrogen atmosphere using a conventional electric furnace, low crystallinity SiC was formed with carbon black remaining as an impurity. The mechanism for the formation of SiC from a powder mixture of SiO2 and carbon using microwave heating is discussed on the basis of chemical thermodynamics, and compared to that for conventional heating with a carbothermal reduction reaction. As a result, the advantage of carbothermal reduction reaction by microwave heating was confirmed.
著者
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Hyuga Hideki
National Institute Of Advanced Industrial Science & Technology Aist
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Hirao Kiyoshi
Advanced Manufacturing Res. Inst. National Inst. Of Advanced Industrial Sci. And Technol. (aist)
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Hirao Kiyoshi
National Institute Of Advanced Industrial Science & Technology Aist
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HASHIMOTO Shinobu
Nagoya Institute of Technology
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Hirao Kiyoshi
National Inst. Of Advanced Industrial Sci. And Technol. (aist)
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HONDA Sawao
Nagoya Institute of Technology Dept. of Materials Science & Engineering
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ZHOU You
National Institute of Advanced Industrial Science & Technology, AIST
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IWAMOTO Yuji
Nagoya Institute of Technology
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OHASHI Syuho
Nagoya Institute of Technology, Department of Environmental Materials and Engineering
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Honda Sawao
Nagoya Inst. Of Technol. Dep. Of Environmental Materials And Engineering
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Iwamoto Yuji
Nagoya Inst. Of Technol. Dep. Of Environmental Materials And Engineering
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IWAMOTO Yuji
Nagoya Institute of Technology, Department of Environmental Materials and Engineering
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HASHIMOTO Shinobu
Nagoya Institute of Technology, Department of Environmental Materials and Engineering
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ZHOU You
National Institute of Advanced Industrial Science and Technology (AIST)
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