Microscopic and Spectroscopic Observations of Plasma Generation in the Microwave Heating of Powder Material
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概要
- 論文の詳細を見る
Structure formation during the plasma ignition was experimentally investigated under microwave irradiation of magnetite (Fe3O4) and graphite composite powder. It was found from microscopic images that there are stepwise structure formations: (i) a luminous layer, (ii) hotspots, (iii) flare like emissions, and (iv) a luminous body above the powder. The 1D-spatially resolved emission spectra show that the light of the luminous layer of (i) has CO bands, and the luminous body of (iv) has iron atomic spectra superimposed on the continuum spectrum. The structure formation indicates a process of plasma-material mixing through chemical reduction of the magnetite powder.
著者
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SATO Motoyasu
National Insitute for Fusion Science
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MATSUBARA Akihiro
Department of Physics, School of Science, Tokai University
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Okajima Shigeki
Department Of Applied Physics Chubu University
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Nakayama Kazuya
Department Of Electrical And Computer Engineering Kanazawa University
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Sato Motoyasu
National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
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MATSUBARA Akihiro
Department of Engineering Science, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan
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