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Preparation of spherical TiO2/SnO2powders by ultrasonic spray pyrolysis and its spinodal decomposition

โœ Scribed by Jong-Heun Lee; Soon-Ja Park

Publisher
Springer US
Year
1993
Tongue
English
Weight
500 KB
Volume
4
Category
Article
ISSN
0957-4522

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โœฆ Synopsis

Spherical TiO2/Sn02 powders were prepared from the TiCI4-SnCI 4 aqueous solution by ultrasonic spray pyrolysis. The particle size, particle-size distribution and morphology of the powders were studied in relation to concentration of source solutions and reaction temperatures. The width of the compositional undulation induced by spinodal decomposition in the sintered bodies increased with increasing starting particle sizes, which resulted from micro-compositional heterogeneity in the form of a solid solution within a TiO2/Sn02 secondary sphere.

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