In:
physica status solidi (RRL) – Rapid Research Letters, Wiley, Vol. 6, No. 11 ( 2012-11), p. 451-453
Kurzfassung:
We report the phase diagram of the lead‐free ternary (Bi 0.5 Na 0.5 )TiO 3 –(Bi 0.5 K 0.5 )TiO 3 –(K 0.5 Na 0.5 )NbO 3 (BNT–BKT–KNN) system and study the switching characteristics of the morphotropic phase boundary (MPB). The addition of KNN intrinsically changes the structural nature of the system with shift of MPB type from (I) to (II), and also adjusts the depolarization temperature ( T d ) to room temperature. Accordingly, a high electrostrictive response with large electrostrictive coefficient Q 33 (∼0.022–0.027 m 4 /C 2 ) and a good thermostability comparable with that of traditional Pb‐based electrostrictors was achieved in MPB (II) compositions. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Materialart:
Online-Ressource
ISSN:
1862-6254
,
1862-6270
DOI:
10.1002/pssr.201206270
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2012
ZDB Id:
2259465-6