Diffuse phase transition and low temperature dielectric constant in PbTiO3

1990 ◽  
Vol 108 (1) ◽  
pp. 159-164 ◽  
Author(s):  
Terutaro Nakamura ◽  
Masaaki Takashige
Keyword(s):  
Phase Transition ◽  
Dielectric Constant ◽  
Low Temperature ◽  
Diffuse Phase Transition ◽  
Diffuse Phase

Diffuse Phase Transition and Dielectric Properties of Lead-Free Zr-Doped BCTS Ceramics

2017 ◽  
Vol 866 ◽  
pp. 259-262 ◽  
Author(s):  
Puripat Kantha ◽  
Kamonpan Pengpat ◽  
Nuttapon Pisitpipathsin
Keyword(s):  
Phase Transition ◽  
Dielectric Constant ◽  
Diffuse Phase Transition ◽  
Solid State Reaction Method ◽  
Lead Free ◽  
Phase Transition Behavior ◽  
Conventional Solid State Reaction ◽  
Maximum Dielectric Constant ◽  
Cubic Structure ◽  
Diffuse Phase

Lead-free Ba0.9Ca0.1Sn0.06Ti0.94-xZrxO3 (BCTSZ) ceramics where x = 0.00, 0.03, 0.05, 0.07 and 0.09 were prepared by the conventional solid-state reaction method. The dielectric constant of the Zr doped BCTS ceramic was enhanced by Zr incorporation. The maximum dielectric constant were obtained at the composition of x = 0.05. The dielectric property investigation indicated that the degree of the diffuse phase transition behavior increased with Zr substitution. Phase transition of tetragonal to cubic structure was significantly dependent on the amount of Zr added.

ELECTRICAL PROPERTIES OF (Na1/2Bi1/2)1-xCaxTiO3 CERAMICS

2002 ◽  
Vol 16 (27) ◽  
pp. 4175-4187 ◽  
Author(s):  
B. V. BAHUGUNA SARADHI ◽  
K. SRINIVAS ◽  
T. BHIMASANKARAM
Keyword(s):  
Phase Transition ◽  
Dielectric Constant ◽  
Electrical Properties ◽  
Diffuse Phase Transition ◽  
Calcium Concentration ◽  
Bismuth Titanate ◽  
Temperature Range ◽  
Impedance Data ◽  
Higher Temperature ◽  
Diffuse Phase

The frequency (100Hz–1MHz) and temperature (30–575°C) dependence of electrical properties of calcium doped (Ca = 0.01, 0.05, 0.1) sodium bismuth titanate (NBT) was investigated by impedance spectroscopy. The data is used to analyze the effect of calcium concentration on the electrical properties of NBT. The frequency explicit plots of Z′′ versus frequency at various temperatures shows peaks in the higher temperature range (>400°C). The relaxation peaks are affected by the doping. The AC conductivity values are computed from the impedance data. DC conductivity has been measured in the temperature range of 30–400°C. The activation energies have been evaluated from the data. From the studies of dielectric constant as a function of temperature, it is observed that diffuse phase transition (DPT) is exhibited in these samples.

Diffuse phase transition in Ba5YTi3−xZrxNb7O30 ferroelectrics

2002 ◽  
Vol 74 (2) ◽  
pp. 113-120 ◽  
Author(s):  
N.K. Singh ◽  
R.N.P. Choudhary ◽  
A. Panigrahi
Keyword(s):  
Phase Transition ◽  
Diffuse Phase Transition ◽  
Diffuse Phase

PmC6. Giant electrostriction of ferroelectrics with diffuse phase transition - physics and applications

1992 ◽  
Vol 134 (1) ◽  
pp. 139-144 ◽  
Author(s):  
V. V. Lemanov ◽  
N. K. Yushin ◽  
E. P. Smirnova ◽  
A. V. Sotnikov ◽  
E. A. Tarakanov ◽  
...  
Keyword(s):  
Phase Transition ◽  
Diffuse Phase Transition ◽  
Diffuse Phase

Photoinduced phenomena in lead magnesium niobate crystal at the diffuse phase transition

1978 ◽  
Vol 18 (1) ◽  
pp. 113-116 ◽  
Author(s):  
L. S. Kamzina ◽  
N. N. Krainik ◽  
G. A. Smolensky ◽  
V. A. Trepakov
Keyword(s):  
Phase Transition ◽  
Diffuse Phase Transition ◽  
Lead Magnesium Niobate ◽  
Magnesium Niobate ◽  
Lead Magnesium ◽  
Photoinduced Phenomena ◽  
Diffuse Phase
Sign in / Sign up

Export Citation Format

Share Document