Clarification of Wire Heating Process in Pulsed Wire Discharge with High-Speed Gas Puff

Y. Tokoi; Tadachika Nakayama; Hisayuki Suematsu; Wei Hua Jiang; K. Yatsui; Koichi Niihara

doi:10.4028/www.scientific.net/MSF.510-511.1010

Paper Titles

Hydraulic Properties of Tetracalcium Aluminoferrite with Adsorption of Silicate Ions
p.994

Growth of ZnO Thin Films by Metalorganic Chemical Vapor Deposition Using Isopropyl Alcohol for Oxygen Precursor
p.998

Growth of Carbon Nanorods on Tungsten Filaments of Light Bulbs
p.1002

A Tetragonal Phase in Cr(N,O) Thin Film Prepared by Pulsed Laser Deposition
p.1006

Clarification of Wire Heating Process in Pulsed Wire Discharge with High-Speed Gas Puff
p.1010

Mechanical Properties and Machinability of Si₃N₄/hBN Composites Prepared by Pressureless Sintering
p.1014

Micro Groove Forming on AlN/hBN Composites Using Powder Blasting Process
p.1018

Microstructural Development of SiC Ceramics by Liquid-Phase Sintering with Spark Plasma Sintering Technique
p.1022

Change of Formation Yield and Characterization of PCC Particle Synthesized with Impurity Ions Contents by Carbonation Process
p.1026

HomeMaterials Science ForumMaterials Science Forum Vols. 510-511Clarification of Wire Heating Process in Pulsed...

Clarification of Wire Heating Process in Pulsed Wire Discharge with High-Speed Gas Puff

Abstract:

Copper nanosized powders were prepared by pulsed wire discharge (PWD) in N2 gas at low pressure (130 Pa) with high-speed gas puff. The pressure around one of the electrodes was changed to investigate the effect of electrical discharge prevention by gas puff. The peak pressure was changed from 22 kPa to 10 kPa in the gas puff apparatus by changing the distance from an acrylic resin tube and a bottom plate. The energy deposition in the copper wire at 22, 15 and 10 kPa was about 40, 37 and 33 J, respectively. The energy deposition in the wire increased with the increase in pressure around the electrode.