Effect of Zr(4+) substitution on thermal stability and electrical properties of high temperature BiFe(0.99)Al(0.01)O(3)-BaTi(1-x)Zr(x)O(3) ceramics
High-temperature Pb-free ceramics of 0.72BiFe(0.99)Al(0.01)O(3)-0.28BaTi(1-x)Zr(x)O(3) (BFA-BZ(X)T) have been prepared through solid state reaction route. The influence of the Zr(4+) substitution for Ti(4+) on microstructure, thermal stability and electrical properties of the BFA-BZ(X)T ceramics was...
Saved in:
Published in | Journal of alloys and compounds Vol. 567; pp. 110 - 114 |
---|---|
Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
05.08.2013
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | High-temperature Pb-free ceramics of 0.72BiFe(0.99)Al(0.01)O(3)-0.28BaTi(1-x)Zr(x)O(3) (BFA-BZ(X)T) have been prepared through solid state reaction route. The influence of the Zr(4+) substitution for Ti(4+) on microstructure, thermal stability and electrical properties of the BFA-BZ(X)T ceramics was investigated. The results showed single-phase solid solutions occurred for compositions x = 0-0.12 and a morphotropic phase boundary (MPB) separating rhombohedral and pseudocubic phases existed near x - 0.03. The substitution of Zr(4+) for Ti(4+) caused significant change of grain size for BFA-BZ(X)T ceramics. The optimum piezoelectric properties of d(33) = 157pC/N, k(p) = 0.33, combined with improved depoling temperature T(d) = 425 degree C, are obtained around the MPB composition of x =0.03. The results indicate that BFA-BZ(X)T ceramics have a great potential to apply in high temperature field. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 content type line 23 ObjectType-Feature-2 |
ISSN: | 0925-8388 |