Crystal structure and domain-wall contributions to the piezoelectric properties of strontium bismuth titanate ceramics

The piezoelectric properties of SrBi4Ti4O15 and Bi4Ti2.95Nb0.04O12 have been compared as a function of applied ac stress. Evidence of domain-wall motion was observed in Bi4Ti2.95Nb0.04O12 but not in SrBi4Ti4O15. Examination of SrBi4Ti4O15 using transmission electron microscopy revealed that the material had undergone an orthorhombic-orthorhombic, paraelectric-ferroelectric, phase transition in which no piezoelectrically active, non-180 degrees, domain walls could be created. However, for the orthorhombic-monoclinic transformation in Bi4Ti2.95Nb0.04O12 new piezoelectrically active domain walls are allowed and were considered to move under applied stress. (C) 1996 American Institute of Physics.


Published in:
Journal of Applied Physics, 80, 7, 4223-4225
Year:
1996
ISSN:
0021-8979
Note:
Reaney, Im Univ Sheffield,Dept Mat Engn,Mappin St,Sheffield S1 3jd,S Yorkshire,England Ecole Polytech Fed Lausanne,Dept Mat,Lab Ceram,Ch-1015 Lausanne,Switzerland
Vl801
Times Cited:22
Cited References Count:12
Laboratories:




 Record created 2006-08-21, last modified 2018-03-17


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