This article is cited in 9 papers

Laser synthesis of nanopowders with yttrium aluminum garnet stoichiometry

V. V. Osipov, V. V. Lisenkov, V. V. Platonov

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Ekaterinburg

Abstract: A nanopowder of yttria-alumina mixture with the yttrium aluminum garnet (YAG) stoichiometry has been synthesized for the first time by the laser evaporation method. A high-power CO$_2$ laser with pulse duration above 200 $\mu$s, repetition frequency of 500 Hz, and pulse energy of about 1 J provided a high yield of powder at a rate of 24 g/h. The obtained nanopowder has been used to prepare YAG:Nd$^{3+}$ ceramics with a cubic structure possessing an optical transmittance of about 77% at a wavelength of 1.06 $\mu$m. The successful synthesis of YAG nanopowder is based on the preliminary numerical simulation of the laser evaporation of a target using a three-dimensional model.

Received: 02.07.2010

 English version: Technical Physics Letters, 2011, 37:1, 49–52

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