MISC

2004年

Early Stage of Pulsed High Current Discharge with Copper Powder

The transactions of the Institute of Electrical Engineers of Japan.A
  • Takuma Yokoyama
  • ,
  • Takuya Kuraoka
  • ,
  • Kazuya Takano
  • ,
  • Shinji Ibuka
  • ,
  • Koichi Yasuoka
  • ,
  • Shozo Ishii

124
1
開始ページ
80
終了ページ
84
記述言語
英語
掲載種別
DOI
10.1541/ieejfms.124.80

Early phase of powder plasmas powered by a pulsed high current discharge was examined by use of high-speed cameras and a laser shadowgraph and schlieren techniques. Initial electrons created by a pre-ionization discharge collide with both an anode and powder particles, of which surfaces evaporate after then. Evaporation of the particle by electron collision initially occured in the hemisphere surface which is close to cathode side. Since vaporization of the anode far exceeds that of the particles, discharge characteristics is almost similar to that of vacuum sparks in which expanding anode plasmas are observed. In order to suppress the developpment of the anode plasma, reduction of the effective anode area by varying the anode shape was examined. © 2004, The Institute of Electrical Engineers of Japan. All rights reserved.

リンク情報
DOI
https://doi.org/10.1541/ieejfms.124.80
ID情報
  • DOI : 10.1541/ieejfms.124.80
  • ISSN : 1347-5533
  • ISSN : 0385-4205
  • SCOPUS ID : 85009547363

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