论文信息 - Sub-micrometre spherical particles of TiO2, ZrO2, and PZT by nebulized spray pyrolysis of metal-organic precursors

Sub-micrometre spherical particles of TiO2, ZrO2, and PZT by nebulized spray pyrolysis of metal-organic precursors

Nebulized spray pyrolysis of metal-organic precursors in methanol solution has been employed to prepare powders of TiO2, ZrO2 and PbZr0.5Ti0.5O3 (PZT). This process ensures complete decomposition of the precursors at relatively low temperatures. The particles have been examined by scanning and transmission electron microscopy as well as X-ray diffraction. As prepared, the particles are hollow agglomerates of diameter 0.1-1.6 mu m, but after heating to higher temperatures the ultimate size of the particles comprising the agglomerates are considerably smaller (0.1 mu m or less in diameter) and crystalline.

C. Rao | P. Murugavel | M. Kalaiselvam | A. Raju

[1] D. Uskoković,et al. Synthesis, morphology, and formation mechanism of mullite particles produced by ultrasonic spray pyrolysis , 1996 .

[2] G. Messing,et al. Ceramic Powder Synthesis by Spray Pyrolysis , 1993 .

[3] D. Uskoković,et al. Synthesis of BaTiO3 and ZnO varistor precursor powders by reaction spray pyrolysis , 1993 .

[4] R. Kershaw,et al. Preparation and characterization of TiO2 films by a novel spray pyrolysis method , 1990 .

[5] P. Odier,et al. Preparation of Fine, Spherical Yttria‐Stabilized Zirconia by the Spray‐Pyrolysis Method , 1989 .

[6] Masanori Kato,et al. Preparation of spherical fine ZnO particles by the spray pyrolysis method using ultrasonic atomization techniques , 1986 .