Title :
Nanosize powder production by pulsed wire discharge
Author :
Jiang, W. ; Yatsui, K.
Author_Institution :
Lab. of Beam Technol., Nagaoka Univ. of Technol., Niigata, Japan
Abstract :
Pulsed wire discharge has been successfully applied to nanosize powder production. In the demonstration experiments, the discharge was carried out with the peak current of ~10 kA, the pulse length of ~20 μs, and the pulse energy of ~80 J. Nanosize powders of metals, metal oxides, and metal nitrides have been synthesized by pulsed discharge of metal wires in argon, oxygen or nitrogen. The typical powder production rate was ~5 mg/pulse. The results of surface-area measurement have given the average powder sizes in the range of 20~70 nm, depending on the material of the powders
Keywords :
discharges (electric); nanostructured materials; powder technology; powders; 10 kA; 20 mus; 20 to 70 nm; average powder sizes; nanosize powder production; peak current; powder production rate; pulse energy; pulse length; pulsed wire discharge; surface-area measurement; Argon; Chemical processes; Fault location; Optical materials; Optical pulses; Plasma temperature; Powders; Production; Switches; Wire;
Conference_Titel :
High-Power Particle Beams, 1998. BEAMS '98. Proceedings of the 12th International Conference on
Conference_Location :
Haifa
Print_ISBN :
0-7803-4287-9
DOI :
10.1109/BEAMS.1998.817035
