MICROWAVE CHARACTERISTICS OF BAPR2TI4O12 AND BAPR2TI5O14 CERAMICS

Authors
FUKUDA K KITOH R AWAI I
Citation
K. Fukuda et al., MICROWAVE CHARACTERISTICS OF BAPR2TI4O12 AND BAPR2TI5O14 CERAMICS, Journal of materials research, 10(2), 1995, pp. 312-319
Citations number
20
Categorie Soggetti
Material Science
Journal title
Journal of materials research → ACNP
ISSN journal
08842914
Volume
10
Issue
2
Year of publication
1995
Pages
312 - 319
Database
ISI
SICI code
0884-2914(1995)10:2<312:MCOBAB>2.0.ZU;2-Z
Abstract
Microwave dielectric properties and microstructures of BaPr2Ti4O12 and BaPr2Ti5O14 ceramics which have extremely similar crystal structures, were investigated, including those of the solid solution represented by the formula of Ba-(6-x)Pr8+2x/3Ti18O54 ceramics. It is suggested th at BaPr2Ti5O14 ceramics are composed of mixed phases, approximately 85 .0 vol. % Ba4.05Pr9.3Ti18O54 (x = 1.95), 8.1 vol. % TiO2, and 6.9 vol. % BaTi4O9. The microwave dielectric properties of the Ba6-xPr8+2x/3Ti 18O54 system are strongly dependent on the x value, which is interesti ng for studying the relationship between microstructures and dielectri c properties. Far infrared reflection spectra were also measured to st udy the mixed phases formed in these ceramics in more detail.