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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 19    Special 1    September 2009

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Measurement of metal vapor cooling speed during nanoparticle formation by pulsed wire discharge
Yuu SHIKODA1, Yoshinori TOKOI2, Koji SUWA1, Satoru ISHIHARA3, Tsuneo SUZUKI1,
Tadachika NAKAYAMA1, Hisayuki SUEMATSU1

1. Extreme Energy-Density Research Institute, Nagaoka University of Technology,
1603-1 Kamitomiokamachi, Nagaoka, 940-2188, Japan;
2. Department of Electrical and Electronic Engineering, Niigata University,
2-8050 Ikarashi Nishiku, Niigata, 950-2181, Japan;
3. Inovertion Satellite Niigata, Japan Science and Technology Agency,
NICO Techno-Praza 2F, 4-1-9 Shinsan, Nagaoka, 940-2127, Japan

Abstract:Pulsed wire discharge(PWD) is one of nano-sized powder production methods. The object of this work is to study influence of the plasma/vapor/particle density using computer simulation and to establish temperature measurement method using a high-speed infrared thermometer in the PWD process. The temperature correction coefficient was obtained from geometric computer simulation results. Obtained correction coefficient was applied to the temperature measuring results. It was found from this result that obtained correction coefficient was appropriate. A temperature measurement method was established by using the high-speed infrared thermometer in PWD.

 

Key words: pulsed wire discharge; nano-sized powder; infrared thermometer

ISSN 1672-7029
CN 43-1423/U

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