Description of Relaxor State in Na1/2Bi1/2TiO3-SrTiO3-PbTiO3 System of Solid Solutions

2011 ◽  
Vol 123 (1) ◽  
pp. 40-46 ◽  
Author(s):  
M. Dunce ◽  
E. Birks ◽  
M. Antonova ◽  
M. Kundzinsh
Keyword(s):  
Solid Solutions ◽  
Relaxor State

The crossover from a ferroelectric to a relaxor state in lead-free solid solutions

2004 ◽  
Vol 16 (6) ◽  
pp. 963-970 ◽  
Author(s):  
Annie Simon ◽  
Jean Ravez ◽  
Mario Maglione
Keyword(s):  
Solid Solutions ◽  
Lead Free ◽  
Relaxor State

scholarly journals Акустические аномалии в твердых растворах SrTiO-=SUB=-3-=/SUB=--BiFeO-=SUB=-3-=/SUB=-

2018 ◽  
Vol 60 (1) ◽  
pp. 107
Author(s):  
Е. Смирнова ◽  
А. Сотников ◽  
Н. Зайцева ◽  
H. Schmidt
Keyword(s):  
Phase Diagram ◽  
Solid Solution ◽  
Dielectric Constant ◽  
Solid Solutions ◽  
Solution System ◽  
Temperature Range ◽  
Relaxor State ◽  
Solid Solution System ◽  
Pulse Echo ◽  
Pulse Echo Method

AbstractThe results of acoustic investigations of solid solutions SrTiO_3−BiFeO_3 in the temperature range from 100 to 650 K have been presented. The measurements of the velocity and attenuation of the longitudinal ultrasonic mode at a frequency of 10 MHz were carried out by the pulse-echo method. The observed anomalies in velocity and attenuation correlate with the maxima of the dielectric constant in the temperature range of the relaxor state. In addition, the attenuation peaks in the temperature range 400–600 K, which define Burns and T* temperatures, which are characteristic of relaxors, have been identified. The obtained results have allowed the clarifying of the phase diagram of the solid solution system SrTiO_3−BiFeO_3.

scholarly journals Фазовые диаграммы твердых растворов сегнетоэлектриков-релаксоров по данным диэлектрической спектроскопии

2018 ◽  
Vol 60 (3) ◽  
pp. 435
Author(s):  
М.В. Таланов ◽  
Л.А. Резниченко
Keyword(s):  
Phase Diagrams ◽  
Solid Solutions ◽  
Lead Titanate ◽  
Perovskite Structure ◽  
Temperature Hysteresis ◽  
Crystal Chemical ◽  
Ferroelectric State ◽  
Dielectric Spectra ◽  
Relaxor State ◽  
T Phase

AbstractThe dielectric spectra of Pb(_1– z )Ba_ z (Mg_1/3Nb_2/3)_ m (Zn_1/3Nb_2/3)_ y (Ni_1/3Nb_2/3)_ n TixO_3 ( x = 0.25–0.4, y = 0.1130–0.0842, m = 0.4844–0.1298, n = 0.1266–0.4726, z = 0–0.15) ceramics with substitution in both A and B crystallographic positions of the perovskite structure are studied. The system demonstrates a transition from the relaxor state to the normal ferroelectric state in both cases: when the concentration of lead titanate grows and the concentration of barium is reduced. On the basis of experimental results, the x–T and z–T phase diagrams are plotted. Despite different crystal chemical reasons of the relaxor state emergence in the investigated solid solutions, their diagrams demonstrate an evident similarity. We have revealed the disappearance of the temperature hysteresis at the transition to the relaxor state in both cases, which has allowed us to make an assumption of the existence of tricritical points on the corresponding diagrams.

Optical vibration modes in Hg1-xZnxTe solid solutions near q=0

1989 ◽  
Vol 50 (21) ◽  
pp. 3223-3232 ◽  
Author(s):  
G. Le Bastard ◽  
R. Granger ◽  
S. Rolland ◽  
Y. Marqueton ◽  
R. Triboulet
Keyword(s):  
Solid Solutions ◽  
Vibration Modes ◽  
Optical Vibration

Valence instabilities of Tm in its compounds and solid solutions

1979 ◽  
Vol 40 (C5) ◽  
pp. C5-314-C5-320 ◽  
Author(s):  
F. Holtzberg ◽  
T. Penney ◽  
R. Tournier
Keyword(s):  
Solid Solutions

E. S. R. OF Gd3+ IN La2O3 AND ITS SOLID SOLUTIONS WITH CeO2

1976 ◽  
Vol 37 (C7) ◽  
pp. C7-204-C7-207
Author(s):  
G. BACQUET ◽  
C. BOUYSSET ◽  
D. HERNANDEZ
Keyword(s):  
Solid Solutions
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