Improvement on microwave dielectric properties of Ba(Mg1/3Ta2/3)O-3 materials prepared via a two-step process

Authors
Liang, MH Chiou, CG Tsai, YN Hu, CT Lin, IN
Citation
Mh. Liang et al., Improvement on microwave dielectric properties of Ba(Mg1/3Ta2/3)O-3 materials prepared via a two-step process, FERROELECTR, 238(1-4), 2000, pp. 645-653
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS
ISSN journal
00150193 → ACNP
Volume
238
Issue
1-4
Year of publication
2000
Pages
645 - 653
Database
ISI
SICI code
0015-0193(2000)238:1-4<645:IOMDPO>2.0.ZU;2-#
Abstract
A two-step process, which includes the formation of B-site compounds, MgTa2 O6, followed by the formation of Ba(Mg1/3Ta2/3)O-3, BMT, perovskite by reac ting BaCO3 with MgTa2O6, has been successfully applied for synthesizing BMT materials. The powders prepared by 2-step process exhibit superior reactiv ity and result in ceramics with larger Q-factor (Q.f(o), =600,000 GHz) than the properties obtainable fur the materials prepared by the single-step pr ocess. Thermogravimetric and differential thermal analyses indicate that th e mechanism is the effective suppression on the formation of secondary phas e, Ba5Ta4O15.