Pulsed wire discharge apparatus for mass production of copper nanopowders
- Extreme Energy-Density Research Institute, Nagaoka University of Technology, Nagaoka 940-2188 (Japan)
A pulsed wire discharge (PWD) apparatus for the mass production of nanopowders has been developed. The apparatus has a continuous wire feeder, which is operated in synchronization with a discharging circuit. The apparatus is designed for operation at a maximum repetition rate of 1.4 Hz at a stored energy of 160 J. In the present study, Cu nanopowder was synthesized using the PWD apparatus and the performance of the apparatus was examined. Cu nanopowder of 2.0 g quantity was prepared in N{sub 2} gas at 100 kPa for 90 s. The particle size distribution of the Cu nanopowder was analyzed by transmission electron microscopy and the mean surface diameter was determined to be 65 nm. The ratio of the production mass of the powder to input energy was 362 g/kW h.
- OSTI ID:
- 20953461
- Journal Information:
- Review of Scientific Instruments, Vol. 78, Issue 5; Other Information: DOI: 10.1063/1.2721419; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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