AURIVILLIUS PHASE-FORMATION IN NB2O5-DOPED AND BI2O3-DOPED BATIO3

Authors
PATHUMARAK S LEE WE
Citation
S. Pathumarak et We. Lee, AURIVILLIUS PHASE-FORMATION IN NB2O5-DOPED AND BI2O3-DOPED BATIO3, Journal of materials science. Materials in electronics, 7(3), 1996, pp. 161-164
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Condensed Matter","Material Science
Journal title
Journal of materials science. Materials in electronics → ACNP
ISSN journal
09574522
Volume
7
Issue
3
Year of publication
1996
Pages
161 - 164
Database
ISI
SICI code
0957-4522(1996)7:3<161:APINAB>2.0.ZU;2-F
Abstract
The reaction sequence in the BaTiO3-Nb2O5-Bi2O5 system leading to the core-shell microstructure that causes the temperature-stable dielectri c response has been examined using X-ray diffraction. The starting oxi des react to form bismuth oxide layer Aurivillius phases at low temper atures which, in turn, react with remnant oxides to form the tetragona l tungsten bronze phase, Ba4Bi2Ti4Nb6O30, which acts as the source of dopants responsible for core-shell formation.