Title :
Behaviors of ultrafine tungsten powder by electrical explosion of wire
Author :
Kim, H.T. ; Kim, J.S. ; Kwon, Y.S.
Author_Institution :
Sch. of Mater. Sci. & Eng., Ulsan Univ., South Korea
fDate :
26 June-2 July 2005
Abstract :
Ultrafine tungsten powders have been produced by electrical explosion of wires (EEW) method. Thin W metal wire was discharged by pulsed power of high voltage in argon atmosphere. From the oxidation and combustion of nanopowders in air, it was found that the W powder contained α- and β-W phases, where the combustion product of W powder was WO3. However, the W powder did not form nitrides during combustion as Al powder did.
Keywords :
combustion synthesis; nanoparticles; passivation; powder technology; wires; WO3; combustion product; electrical explosion of wire; nanopowders; pulsed power; ultrafine powder behaviour; Argon; Atmosphere; Combustion; Explosions; Nanoparticles; Oxidation; Powders; Tungsten; Voltage; Wire;
Conference_Titel :
Science and Technology, 2005. KORUS 2005. Proceedings. The 9th Russian-Korean International Symposium on
Print_ISBN :
0-7803-8943-3
DOI :
10.1109/KORUS.2005.1507756
