In:
Journal of Materials Research, Springer Science and Business Media LLC, Vol. 17, No. 1 ( 2002-01), p. 180-185
Kurzfassung:
The piezoelectric and dielectric properties of Pb(Zn 1/3 Nb 2/3 )O 3 (PZN)-based ceramics were investigated. The perovskite structure of PZN ceramics was stabilized by the addition of Pb(Zn 0.47 Ti 0.53 )O 3 (PZT). The highest piezoelectric properties were observed for the composition of 0.5PZN–0.5PZT, which lies on the two-phase zone of morphotropic phase boundary. For further improvements in electric properties, the specimens were thermally treated in a flowing O 2 atmosphere at temperatures ranging from 860 to 1030 °C. The thermal treatment eliminated the PbO-rich amorphous intergranular layer by lead evaporation. As a result of this improvement in structure, the dielectric constant (ε′), the piezoelectric coefficient ( d 33 ), and the electromechanical coupling factor ( k p ), were enhanced markedly after thermal annealing at 960 °C for 8 h in an O 2 atmosphere.
Materialart:
Online-Ressource
ISSN:
0884-2914
,
2044-5326
DOI:
10.1557/JMR.2002.0027
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2002
ZDB Id:
54876-5
ZDB Id:
2015297-8
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