Title :
Characteristics of nanopowders produced by electrical explosion of copper wires in argon with air additives
Author :
Kwon, Y.S. ; Ilyin, A.P. ; Nazarenko, O.B. ; Tikhonov, D.V.
Author_Institution :
Res. Center for Machine Parts & Mater. Process., Univ. of Ulsan, Ulsan
Abstract :
In this paper the dispersed, phase and chemical compositions of nanopowders produced by electrical explosion of wires in various gaseous medium were investigated. It is found that electrical explosion of copper wires in argon with little additives of air (1...2 vol.%) results in producing the nanopowders having high specific surface area (10.5...11 m2/g) and containing ~80 % of metal copper. The size of copper nanopowders decreases with increasing the content of reactive gas in argon (up to 30 vol. %) and their phase composition changes: the output of CuO is observed.
Keywords :
chemical analysis; copper; copper compounds; exploding wires; nanoparticles; nanotechnology; Cu; CuO; air additives; argon; chemical compositions; copper nanopowders; copper wires; electrical explosion; phase composition; Aluminum; Argon; Copper; Explosions; Magnetic materials; Nanoparticles; Oxidation; Passivation; Temperature; Wires;
Conference_Titel :
Strategic Technologies, 2008. IFOST 2008. Third International Forum on
Conference_Location :
Novosibirsk-Tomsk
Print_ISBN :
978-1-4244-2319-4
Electronic_ISBN :
978-1-4244-2320-0
DOI :
10.1109/IFOST.2008.4602853
