Effect of Electrical Parameters and Surrounding Gas on the Electroexplosive Tungsten Nanopowders Characteristics

Young-Soon Kwon; Jin-Chun Kim; Alexander P. Ilyin; Olga B. Nazarenko; Dmitry V. Tikhonov

doi:10.4150/KPMI.2012.19.1.049

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Effect of Electrical Parameters and Surrounding Gas on the Electroexplosive Tungsten Nanopowders Characteristics: Young-Soon Kwon, Jin-Chun Kim, Alexander P. Ilyin, Olga B. Nazarenko, Dmitry V. Tikhonov; Journal of Korean Powder Metallurgy Institute 2012;19(1):49-54
DOI: https://doi.org/10.4150/KPMI.2012.19.1.049

¹Research Center for Machine Parts and Materials Processing, School of Materials Engineering, University of Ulsan
²Research Center for Machine Parts and Materials Processing, School of Materials Engineering, University of Ulsan
³Tomsk Polytechnic University
⁴Tomsk Polytechnic University
⁵Tomsk Polytechnic University

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Abstract

Tungsten nanopowders were produced by the method of wires electrical explosion in the different gases. The study of phase and dispersed composition of the powders was carried out. The influence of electrical parameters such as the value of energy input in wire and the arc stage of the explosion was discussed. The factors that make for decreasing the particles size are the lower pressure of surrounding gas and the use of addition of chemically reactive gas.

Keywords: Electrical explosion of wires;Tungsten nanopowder;Particles size;

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