Nanosize Al2O3 Powder Production by Pulsed Wire Discharge.

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  • Suzuki Tsuneo
    Extreme Energy-Density Research Institute, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
  • Keawchai Komson
    Extreme Energy-Density Research Institute, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
  • Jiang Weihua
    Extreme Energy-Density Research Institute, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
  • Yatsui Kiyoshi
    Extreme Energy-Density Research Institute, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan

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  • Nanosize Al<sub>2</sub>O<sub>3</sub> Powder Production by Pulsed Wire Discharge

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Abstract

Nanosize Al2O3 powder was produced by pulsed wire discharge. The discharge was carried out at a peak current of ∼10 kA, the pulse length of ∼20 μs, and pulse energy of ∼80 J. Nanosize γ-Al2O3 powders have been synthesized by pulsed discharge of metal wires in oxygen as an ambient gas. The powder size and its distribution were controlled by the oxygen pressure.

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