Temperature-stable dielectric ceramics in Ba4Nd2Ti4Ta6O30/(La0.1Bi0.9)(2)Ti2O7 biphase system

Citation
J. Wang et al., Temperature-stable dielectric ceramics in Ba4Nd2Ti4Ta6O30/(La0.1Bi0.9)(2)Ti2O7 biphase system, J MATER RES, 14(8), 1999, pp. 3375-3378
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS RESEARCH
ISSN journal
08842914 → ACNP
Volume
14
Issue
8
Year of publication
1999
Pages
3375 - 3378
Database
ISI
SICI code
0884-2914(199908)14:8<3375:TDCIB>2.0.ZU;2-6
Abstract
Biphase dielectric ceramics in the system of (1 - x)Ba4Nd2Ti4Ta6O30/x(La0.1 Bi0.9)(2)Ti2O7 were investigated to obtain a near-zero temperature coeffici ent of dielectric constant. With the increase in x, the dielectric constant increased slightly, and the temperature coefficient changed from negative to positive. High dielectric constant of epsilon = 143 and good temperature stabibility (tau(epsilon) = -48 ppm/ degrees C) were achieved in a composi tion of x = 0.45, and the increased dielectric loss became the new problem.