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Proceedings Paper

Laser synthesis of nanopowders
Author(s): V. V. Osipov; M. G. Ivanov; Yu. A. Kotov; V. V. Platonov; O. M. Samatov
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Paper Abstract

The design and characteristics of a setup for producing oxide nanopowders are reported. Y2O3-stabilized Zr02 (YSZ), Al2O3+YSZ and CeGdO nanopowders are prepared by target evaporation with a pulse-periodic C02-laser. Average laser radiation power is 600 W, pulse power ~10 kW. The output rates of YSZ and Al2O3+YSZ nanopowders are 15-20g/h, and CeGdO nanopowder-55-6Og/h. The grain mean size in the powders is l5nm. Data for the powder characteristics, as well as results of X-ray phase and structure analysis, are reported. The results of investigation of unstable behavior of plasma plume produced by the long-pulse laser irradiation of the targets are reported as well. The mushroom-like shape of the glowing area is believed to be determined by the Richtmyer-Meshkov instability of the plasma-air interface and formation of nanoparticles in the plasma expanding into the buffer gas.

Paper Details

Date Published: 7 June 2005
PDF: 9 pages
Proc. SPIE 5850, Advanced Laser Technologies 2004, (7 June 2005); doi: 10.1117/12.633667
Show Author Affiliations
V. V. Osipov, Institute of Electrophysics (Russia)
M. G. Ivanov, Institute of Electrophysics (Russia)
Yu. A. Kotov, Institute of Electrophysics (Russia)
V. V. Platonov, Institute of Electrophysics (Russia)
O. M. Samatov, Institute of Electrophysics (Russia)

Published in SPIE Proceedings Vol. 5850:
Advanced Laser Technologies 2004
Ivan A. Shcherbakov; Anna Giardini; Vitali I. Konov; Vladimir I. Pustovoy, Editor(s)

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