Phase Transitions at high-pressure and structural description of the macroscopic ferroelectric properties of the Pb(Zr1−xTix)O3 solid solution

2014 ◽  
Author(s):  
J. Rouquette ◽  
G. Fraysse ◽  
J. Haines ◽  
P. Papet ◽  
M. Hinterstein
Keyword(s):  
Solid Solution ◽  
High Pressure ◽  
Phase Transitions ◽  
Ferroelectric Properties ◽  
Structural Description

Electrical Conductivity and Phase Transitions in Ferroelectric Solid Solutions Li0.17Na0.83ТауNb1-уO3 (y = 0 – 0.5) in High Pressure

2020 ◽  
Vol 310 ◽  
pp. 6-13
Author(s):  
Vadim V. Efremov ◽  
Mikhail N. Palatnikov ◽  
Yuriy V. Radyush ◽  
Olga B. Shcherbina
Keyword(s):  
Solid Solution ◽  
Electrical Conductivity ◽  
High Pressure ◽  
Phase Transitions ◽  
Solid Solutions ◽  
Synthesis Method ◽  
Ferroelectric Ceramic ◽  
Synthesis Temperature ◽  
Structure Phase ◽  
Ceramic Solid Solution

Ferroelectric ceramic solid solutions LixNa1-xTayNb1-yO3 (х = 0.17; у = 0 – 0.5) with the perovskite structure have been obtained by the thermobaric synthesis method. Particularities of their microstructure, elastic properties, electrical conductivity and permittivity have been researched. It has been established that an increase in the thermobaric synthesis temperature leads to a decrease in the Young’s modulus value. Specific static conductivity values have been determined; charge carrier activation enthalpies На have been calculated. The Curie temperature of the samples has been determined to decrease with an increase in tantalum content. A Ferroelectric ceramic solid solution Li0.17Na0.83Ta0.1Nb0.9O3 was shown to undergo four structure phase transitions in the temperature range 300-820 К. A Li0.17Na0.83Ta0.1Nb0.9O3 has been shown to be a high temperature superionic. Possible mechanisms of the detected phenomena are discussed.

Effects of antiferroelectric substitution on the structure and ferroelectric properties of a complex perovskite solid solution

2020 ◽  
Vol 8 (17) ◽  
pp. 5795-5806
Author(s):  
Zenghui Liu ◽  
Yi Yuan ◽  
Zeng Luo ◽  
Hongyan Wan ◽  
Pan Gao ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Phase Transitions ◽  
Solid Solutions ◽  
Piezoelectric Properties ◽  
Ferroelectric Properties ◽  
Complex Perovskite ◽  
Polar Structure ◽  
Structure Phase ◽  
Piezoelectric Solid

Novel ferro-/piezoelectric solid solutions between bismuth-based perovskite and antiferroelectric material are designed and synthesized and their crystal structure, phase transitions, ferro-/piezoelectric properties and local polar structure are investigated.

High-pressure synthesis and ferroelectric properties in perovskite-type BiScO3–PbTiO3 solid solution

2004 ◽  
Vol 95 (1) ◽  
pp. 231-235 ◽  
Author(s):  
Yoshiyuki Inaguma ◽  
Atsushi Miyaguchi ◽  
Masashi Yoshida ◽  
Tetsuhiro Katsumata ◽  
Yoshiro Shimojo ◽  
...  
Keyword(s):  
Solid Solution ◽  
High Pressure ◽  
Ferroelectric Properties ◽  
High Pressure Synthesis ◽  
Pressure Synthesis ◽  
Perovskite Type

High-pressure phase transitions of Fe3-xTixO4 solid solution up to 60 GPa correlated with electronic spin transition

2013 ◽  
Vol 98 (4) ◽  
pp. 736-744 ◽  
Author(s):  
T. Yamanaka ◽  
A. Kyono ◽  
Y. Nakamoto ◽  
Y. Meng ◽  
S. Kharlamova ◽  
...  
Keyword(s):  
Solid Solution ◽  
High Pressure ◽  
Phase Transitions ◽  
Spin Transition ◽  
High Pressure Phase ◽  
Electronic Spin ◽  
Pressure Phase

scholarly journals Technology, Physical Properties and Phase Transitions in PMN-PT-PS Ceramics

2011 ◽  
Vol 56 (4) ◽  
pp. 1051-1056 ◽  
Author(s):  
R. Skulski ◽  
D. Bochenek ◽  
P. Wawrzała
Keyword(s):  
Solid Solution ◽  
Phase Transitions ◽  
Dielectric Permittivity ◽  
Physical Properties ◽  
Ferroelectric Properties ◽  
Sol Gel ◽  
Hysteresis Loops ◽  
Gel Method ◽  
Sol Gel Method ◽  
Ceramic Samples

Technology, Physical Properties and Phase Transitions in PMN-PT-PS CeramicsSolid solution of (1-y)[(1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3]-yPbSnO3(PMN-PT-PS) investigated in this paper is based on (1-x)PMN-xPT (PMN-PT) where, with increasingx, the transition from relaxor to ferroelectric properties is observed depending on composition. PMN-PT ceramics with 0.25<x<0.4 has been obtained using sol-gel method and next mixed together with PS ceramics obtained from oxides. Final sintering of ceramic samples was pressureless. We present the results of microstructure and XRD investigations, dielectric permittivity and hysteresis loops measurements vs. temperature.

scholarly journals High-Pressure Spectroscopy Study of Zn(IO3)2 Using Far-Infrared Synchrotron Radiation

Crystals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 34
Author(s):  
Akun Liang ◽  
Robin Turnbull ◽  
Enrico Bandiello ◽  
Ibraheem Yousef ◽  
Catalin Popescu ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
Synchrotron Radiation ◽  
Infrared Radiation ◽  
Room Temperature ◽  
Far Infrared ◽  
Low Pressure ◽  
Pressure Response ◽  
Spectroscopy Study ◽  
Far Infrared Radiation

We report the first high-pressure spectroscopy study on Zn(IO3)2 using synchrotron far-infrared radiation. Spectroscopy was conducted up to pressures of 17 GPa at room temperature. Twenty-five phonons were identified below 600 cm−1 for the initial monoclinic low-pressure polymorph of Zn(IO3)2. The pressure response of the modes with wavenumbers above 150 cm−1 has been characterized, with modes exhibiting non-linear responses and frequency discontinuities that have been proposed to be related to the existence of phase transitions. Analysis of the high-pressure spectra acquired on compression indicates that Zn(IO3)2 undergoes subtle phase transitions around 3 and 8 GPa, followed by a more drastic transition around 13 GPa.

scholarly journals The Enrichment of (Cu, Sn) Solid Solution Driven by High-Pressure Torsion

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 766
Author(s):  
Boris Straumal ◽  
Askar Kilmametov ◽  
Anna Korneva ◽  
Pawel Zięba ◽  
Yuri Zavorotnev ◽  
...  
Keyword(s):  
Solid Solution ◽  
High Pressure ◽  
Theoretical Analysis ◽  
Annealing Temperature ◽  
High Pressure Torsion

Cu–14 wt% Sn alloy was annealed at temperatures of 320 and 500 °C. The concentration of tin cinit in the copper-based matrix increased with annealing temperature. The annealed samples were subjected to high-pressure torsion (HPT) at 6 GPa, 5 turns, 1 rpa. HPT led to the refinement of Cu grains. The shape of the colonies of α + ε phases changed only slightly. The HPT-driven enrichment of the Cu-based solid solution with Sn atoms cHPT–cinit decreased with increasing cinit. The performed theoretical analysis explained this behavior of the HPT-driven enrichment.

High-pressure phase transitions in AlSb

2001 ◽  
Vol 62 (5) ◽  
pp. 941-949 ◽  
Author(s):  
H. Hirano ◽  
S. Uehara ◽  
A. Mori ◽  
A. Onodera ◽  
K. Takemura ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
High Pressure Phase ◽  
Pressure Phase
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