Radial pulsed arc discharge gun for synthesizing nanopowders

Details Radial pulsed arc discharge gun for synthesizing nanopowders Radial pulsed arc discharge gun for synthesizing nanopowders

B - Operations, Transporting

22

F

B22F 9/14 (2006.01) B05D 3/08 (2006.01) B23K 9/00 (2006.01) B23K 9/02 (2006.01) B23K 10/00 (2006.01) C01B 31/18 (2006.01) C01B 31/36 (2006.01) C01B 33/20 (2006.01) C22C 1/00 (2006.01) C22C 29/00 (2006.01) C22C 29/12 (2006.01) C23C 4/10 (2006.01) H05H 1/24 (2006.01)

Patent

CA 2487333

A system and method for synthesizing nanopowder which provides for precursor material ablation from two opposing electrodes that are substantially axially aligned and spaced apart within a gaseous atmosphere, where a plasma is created by a high power pulsed electrical discharge between the electrodes, such pulse being of short duration to inertially confine the plasma, thereby creating a high temperature and high density plasma having high quench and/or reaction rates with the gaseous atmosphere for improved nanopowder synthesis.

L'invention concerne un système et un procédé de synthétisation de nanopoudre qui fournit une ablation de matériau précurseur de deux électrodes opposées (31, 32) qui sont sensiblement alignées axialement et espacées dans une atmosphère gazeuse, où un plasma (37, 38) est créé lors d'une décharge électrique pulsée (34) de forte puissance entre les électrodes (31, 32), une telle impulsion étant de courte durée pour inertiellement confiner le plasma, ce qui permet d'obtenir une température élevée et un plasma haute densité ayant des taux d'extinction et/ou de réaction élevés avec l'atmosphère gazeuse pour une meilleure synthèse de nanopoudre.

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