In:
Key Engineering Materials, Trans Tech Publications, Ltd., Vol. 368-372 ( 2008-2), p. 65-68
Abstract:
In this study, piezoelectric materials 0.95 (Na0.5Bi0.5)TiO3-0.05 BaTiO3 (NBT-BT)
composition with excess x wt% Bi2O3 (x=0, 1, 2, and 3) are investigated as a function of sintering temperatures. The sintering characteristics and dielectric characteristics of excess Bi2O3-doped 0.95
(Na0.5Bi0.5)TiO3- 0.05 BaTiO3 ceramics are developed with the aid of SEM, XRD patterns, and dielectric-temperature curves. The sintering process is carried out in air for 2h from 1120oC to
1200oC. Dielectric-temperature properties are investigated in the temperature range of 30oC~350oC at the frequencies of 10KHz~1MHz. The maximum dielectric constants of NBT-BT ceramics first
increase with the increase of Bi2O3 content, reach the maximum at 1wt%- Bi2O3-ad ded NBT-BT
ceramics, and then decrease with the further increase of Bi2O3 content. The maximum dielectric constants of NBT-BT ceramics are almost unchanged as the measured frequency increases. The Curie
temperatures of NBT-BT ceramics are also developed.
Type of Medium:
Online Resource
ISSN:
1662-9795
DOI:
10.4028/www.scientific.net/KEM.368-372
DOI:
10.4028/www.scientific.net/KEM.368-372.65
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2008
detail.hit.zdb_id:
2073306-9
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