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Proceedings Paper

Nanometer-sized powder production by means of target evaporation using a high-efficiency pulsed-repetitive CO2 laser
Author(s): Vladimir V. Osipov; Yu. A. Kotov; M. G. Ivanov; O. M. Samatov; P. B. Smirnov
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Paper Abstract

Our paper reports about YSZ powders by successive evaporation and crystallization in the gas stream. In the laser applied the original method of active medium excitation was used. Efficiency of the laser constructed on the basis of this method reached 22 percent and specific power output at approximately 1 W/cm3. Pulsed regime is proved to be more efficient for active medium excitation and target evaporation than continuous one. Targets made from coarse YSZ powder with Y2O3 content of 10.15 mol. percent were evaporated and crystallized in a stream of cleaned air. Cubic-structure YSZ particles were obtained which had a shape close to spherical. Particle size distribution was close to a lognormal distribution with dg equals 10 nm and (sigma) equals 1.75. Specific surface of the powder was up to 70 m2/g, while the Y2O3 content reduced to 9.8 mol. percent.

Paper Details

Date Published: 20 January 1999
PDF: 4 pages
Proc. SPIE 3688, 6th International Conference on Industrial Lasers and Laser Applications '98, (20 January 1999); doi: 10.1117/12.337515
Show Author Affiliations
Vladimir V. Osipov, Institute of Electrophysics (Russia)
Yu. A. Kotov, Institute of Electrophysics (Russia)
M. G. Ivanov, Institute of Electrophysics (Russia)
O. M. Samatov, Institute of Electrophysics (Russia)
P. B. Smirnov, Institute of Electrophysics (Russia)

Published in SPIE Proceedings Vol. 3688:
6th International Conference on Industrial Lasers and Laser Applications '98
Vladislav Ya. Panchenko; Vladimir S. Golubev, Editor(s)

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