Nanosized barium titanate powder by mechanical activation

Citation
Jm. Xue et al., Nanosized barium titanate powder by mechanical activation, J AM CERAM, 83(1), 2000, pp. 232-234
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
83
Issue
1
Year of publication
2000
Pages
232 - 234
Database
ISI
SICI code
0002-7820(200001)83:1<232:NBTPBM>2.0.ZU;2-0
Abstract
Mechanical activation, without any additional heat treatment, is used to tr igger the formation of a perovskite BaTiO3 phase in an oxide matrix that co nsists of BaO and TiO2 in a nitrogen atmosphere. The resulting BaTiO3 powde r exhibits a well-established nanocrystalline structure, as indicated by ph ase analysis using X-ray diffractometry. A crystallite size of similar to 1 4 nm is calculated, based on the half-width of the BaTiO3 (110) peak, using the Scherrer equation, and an average particle size of 20-30 mm is observe d using transmission electron microscopy for the activation derived BaTiO3 powder.