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Pulsed power technology and its applications at extreme energy-density research institute (EDI), Nagaoka

  • Kiyoshi Yatsui*
  • , Weihua Jiang
  • , Hisayuki Suematsu
  • , Nobuhiro Harada
  • , Go Imada
  • , Tsuneo Suzuki
  • , Yoshiaki Kinemuchi
  • , Sung Chae Yang
  • *Corresponding author for this work
  • Nagaoka University of Technology

Research output: Contribution to journalJournal articlepeer-review

Abstract

Recent activities conserning pulsed power technology and its applications are reviewed. Using high-density ablation plasma produced due to the short range of an ion beam in targets, we have successfully prepared crystallized B4C thin films by ion-beam evaporation, which are characterized by hardness, wear resistance, and stability at high temperatures. Fullerenes have been prepared as well. Ultrafine nanosize powders were synthesized by pulsed wire discharge. Flue gas treatment of NOx was achieved by intense pulsed relativistic electron beam. Foil acceleration was observed to be ∼8 km/s at the ablation pressure of 13 GPa. Pulsed laser deposition was used to prepare (Cr1-x, Alx)N films. The AlN solubility limit was found to be 77 at.% AlN. The hardness of the films increases with x up to 0.75, and decreases rapidly due to their being amorphous in structure. A highly repetitive, new pulsed power generator is operational, with the specifications of 400 kV, 13 kA, 120 ns, and 1 pps.

Original languageEnglish
Pages (from-to)921-929
Number of pages9
JournalJapanese Journal of Applied Physics
Volume40
Issue number2 B
DOIs
StatePublished - 2001.02

Keywords

  • BC film
  • Flue gas treatment
  • Foil acceleration
  • Highly repetitive pulsed power generator
  • Ion-beam ablation plasma
  • Ion-beam evaporation
  • Nanosize powders

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