TY  - JOUR
AU  - Kajewski, D.
AU  - Ujma, Z.
AU  - Szot, K.
TI  - Dielectric properties and phase transition in SrBi2Nb2O9–SrBi2Ta2O9 solid solution
JO  - Ceramics International
VL  - 35
SN  - 0272-8842
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - PreJuSER-8283
SP  - 2351 - 2355
PY  - 2009
N1  - Record converted from VDB: 12.11.2012
AB  - Structural and dielectric properties of SrBi2(Nb1-xTx)(2)O-9 solid solution, (SBNT), with x = 0.0, 0.1, 0.2, 0.3, 0.5, 0.7, 1.0 were investigated. Crystal structure at room temperature was analyzed by X-ray diffraction study. SBNT exhibits an Aurivillius structure and the c lattice constant decreases with increasing concentration of Ta in the solution. The studies of real (epsilon') and imaginary (epsilon '') parts of permittivity as a function of temperature (20-500 degrees C) and frequency (0.1-100 kHz) were carried out, as well. The anomalies of epsilon'(T) and epsilon ''(T) associated with phase transition from the tetragonal paraelectric phase (PT) to the orthorhombic ferroelectric phase (F-O) were observed. They are strongly dependent on the Ta content in the solution. The grain structure and chemical composition were examined by a scanning electron microscope (SEM), with an energy dispersion spectrometer (EDS). The EDS analysis indicated a homogeneous distribution of all elements of ceramics within the grains. (C) 2009 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000267387500037
DO  - DOI:10.1016/j.ceramint.2009.01.013
UR  - https://juser.fz-juelich.de/record/8283
ER  -