Title of article
Preparation of LaxSr1−xMnO3 ultrafine powder by spray pyrolysis
Author/Authors
Zhao، نويسنده , , Bing and Zhang، نويسنده , , Ruihai and Lu، نويسنده , , Lizhu and Xie، نويسنده , , Huiqing، نويسنده ,
Pages
6
From page
36
To page
41
Abstract
The major factors affecting the particle size and morphology of LaxSr1−xMnO3 powder produced by spray pyrolysis are found to be the pyrolysis temperature, the rate of gas to liquid flow rates and concentration of the raw materials. The powders consist mainly of less than 1 jam spherical particles. The smaller particles are the perfect spheres. Particles greater than 2 μm are mostly fragments of spheres. The chemical composition of LaxSr1−xMnO3 powder accords approximately with that of feed. The powder produced by spray pyrolysis is amorphous, which could be transformed into single structure of hexagonal-rhombohedral perovskite after being calcined at 1200°C for 2 h in air and form the larger hard agglomerates.
Keywords
LaxSr1?xMnO3 powder , Spray pyrolysis , Preparation
Journal title
Astroparticle Physics
Record number
2066041
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