Pulsed wire discharge for nanosize powder synthesis

被引:175
作者
Jiang, WH [1 ]
Yatsui, K [1 ]
机构
[1] Nagaoka Univ Technol, Lab Beam Technol, Nagaoka, Niigata 94021, Japan
关键词
discharges; nanotechnology; plasma materials-processing applications; powders;
D O I
10.1109/27.736045
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 [等离子体物理]; 080103 [流体力学]; 080704 [流体机械及工程];
摘要
The pulsed wire discharge, as one of the well-developed pulsed power technologies, has been successfully applied to nanosize powder production. In the demonstration experiments, the discharge was carried out with the peak current of similar to 10 kA, the, pulse length of similar to 20 mu s, and the pulse energy of similar to 80 J. Nanosize powders of metals (AI, Fe, Cu, Mo, and ph), metal oxides (Al2O3, TiO2, Fe2O3, NiO, ZrO2, SnO2, and PbO), and metal nitrides (TiN ZrN, Ta2N) have been synthesized by pulsed discharge of metal wires in argon, oxygen, or nitrogen. The typical powder production rate was similar to 5 mg/pulse. The results of surface-area measurement have given the average powder sizes in the range of 20 similar to 70 nm, depending on the material of the ponder.
引用
收藏
页码:1498 / 1501
页数:4
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