Spray pyrolysis

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What is Ultrasonic Spray Pyrolysis?

A powder preparation process through the thermal decompostion of the droplet generated by ultrasonic transducion.

The Advantage of Spray Pyrolysis Process.

A powder preparation process through the thermal decompostion of the droplet generated by ultrasonic transducion.

  • spherical mophology.
  • narrow particle size distribution.
  • easy preparation of the powder with the complex composition.
  • relatively homogeneous composition. : compositional heterogeneity is restricted only within a spherical
    secondary powder.

The Shortcoming of Spray Pyrolysis Process.

Morhpology of Powders Prepared by Ultrasonic Spray Pyrolysis

TiO2 prepared from 0.19M TiCl4 aqueous solution at 600oC.
[Ceramic Transaction Vol.22, pp39-44(1991)]
SnO2 prepared from 0.2M SnCl4 aqueous solution at 800oC.
[J.Am.Ceram.Soc., 76(3), 777-780, (1993)]
TiO2-SnO2 prepared from 0.2M TiCl4-SnCl4 aqueous solution at 800oC.
[J.Mater.Sci.:Materials in Electronics, 4, 254-258 (1993)]
Pb(Zr,Ti)O3 prepared from aqueous acetate-base solution at 700oC.
[J.Mater.Sci.:Materials in Electronics, 6, 84-89 (1995)]
Zr0.8Sn0.2TiO4 prepared from ZrO(CH 3COO)2-TiCl4 -SnCl4 aqueous solution at 800oC.
[J.Mater.Sci., 30, 3274-3278 (1995)]