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Chromium Oxide Sub-Micron Particles Fabricated by a Unique Technique: Laser-Induced Solution Deposition

Published online by Cambridge University Press:  17 March 2011

Zhenchen Zhong*
Affiliation:
Institute for Micromanufacturing and Physics Program, Louisiana Tech University, Ruston, LA 71272, U.S.A. and Department of Physics, Grambling State University, Grambling, LA 71245, U.S.A.
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Abstract

We have demonstrated that well-dispersed sub-micron chromium oxide particles can be fabricated by laser-induced solution deposition (LISD) from the solution of CrCl2 solute dissolved in organic solvents containing THF and cyclohexane. The particles are uniform in composition and contain little contamination. The distribution of the particles is narrow in three sizes: 230 nm, 350 nm and 400 nm. We have discussed the kinetics of forming these three kinds of sub-micron particles and the difficulty in obtaining single-phase chromium oxide. We have successfully shown that LISD is a unique technique for fabricating submicron chromium oxide particles with uniform composition and controllable size with narrow particle size distribution. The kinetics (nucleation and growth mechanism) of forming three sizes of particles is discussed.

Type
Research Article
Copyright
Copyright © Materials Research Society 2001

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