Characterization of nano-powder morphology obtained by ultrasonic spray pyrolysis
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Spherical nanosized particles of copper were synthesized by ultrasonic dispersion of solutions from copper sulphate in the temperature range of 800-900°C in hydrogen atmosphere. A controlled particle size was realized through the choice solution concentration as well as by changing the aerosol decomposition parameters. The experimental investigations were performed by ultrasonic sources of 2.5 MHz, acting on water solution of the copper sulphate forming aerosols with constant droplet sizes. This size depends on the characteristics of the solution and the frequency of the ultrasound. The morphological characteristics of copper nanosized powders are investigated. .
Keywords:Morphology / copper / powder / ultrasonic spray pyrolysis / nanotechnology
Source:Metalurgija, 2008, 14, 1, 41-54
- Savez inženjera metalurgije Srbije, Beograd