Phase transition of new solid solution crystal Li0.7Na0.3NbO3

1994 ◽  
Vol 76 (3) ◽  
pp. 1983-1985 ◽  
Author(s):  
J. B. Kim ◽  
J. N. Kim
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
Solid Solution Crystal

scholarly journals A monoclinic-tetragonal ferroelectric phase transition in lead-free (K0.5Na0.5)NbO3-x%LiNbO3 solid solution

2012 ◽  
Vol 111 (10) ◽  
pp. 103503 ◽  
Author(s):  
Wenwei Ge ◽  
Yang Ren ◽  
Jialiang Zhang ◽  
Christopher P. Devreugd ◽  
Jiefang Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Lead Free

Phase transition of the doubly disordered Ba1−x Sn x Cl1+y F1−y solid solution at high temperature

2006 ◽  
Vol 166 (1-4) ◽  
pp. 379-384 ◽  
Author(s):  
Julie Kochuparampil ◽  
Georges Dénès ◽  
Abdualhafed Muntasar
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
High Temperature

Luminescence kinetics of an Y0.8Yb0.2F3:Tm3+ solid solution crystal

JETP Letters ◽  
2014 ◽  
Vol 100 (1) ◽  
pp. 11-15 ◽  
Author(s):  
V. V. Pavlov ◽  
B. N. Kazakov ◽  
A. V. Lovchev
Keyword(s):  
Solid Solution ◽  
Luminescence Kinetics ◽  
Solid Solution Crystal ◽  
Kinetics Of

Isostructural phase transition-induced bulk modulus multiplication in dopant-stabilized ZrO2 solid solution

2019 ◽  
Vol 28 (7) ◽  
pp. 076109
Author(s):  
Min Wang ◽  
Wen-Shu Shen ◽  
Xiao-Dong Li ◽  
Yan-Chun Li ◽  
Guo-Zhao Zhang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
Bulk Modulus ◽  
Isostructural Phase Transition

Structural phase transitions and mixing behaviour of the Ba-aluminate (BaAl2O4)– Sr-aluminate (SrAl2O4) solid solution

2003 ◽  
Vol 67 (5) ◽  
pp. 989-1013 ◽  
Author(s):  
U. Rodehorst ◽  
M. A. Carpenter ◽  
S. Marion ◽  
C. M. B. Henderson
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
Phase Transitions ◽  
Structural Phase ◽  
Strain Analysis ◽  
Lattice Parameter ◽  
Diffuse Intensity ◽  
Linear Behaviour ◽  
Line Widths ◽  
Diffraction Patterns

AbstractPhase transitions in the BaAl2O4–SrAl2O4 solid solution have been analysed as a function of temperature and composition using infrared (IR) powder absorption spectroscopy. The improper ferroelectric phase transition P6322 → P63 (2A superstructure) in the BaAl2O4 end-member can be detected through a change in slope of the wavenumbers of hard modes at ∽450 K. A change in line widths at ∽520 K appears to correlate with the development of diffuse intensity in a*-b* planes of electron diffraction patterns reported elsewhere in the literature. The same shift in wavenumber of hard modes is not observed in spectra from samples with compositions corresponding to 60, 80 and 90% of BaAl2O4 component, but a change in line widths at ∽500 K has been tentatively explained in terms of a different phase transition, from a P6322 parent structure to a P63 (√3A superstructure) product. Strain analysis of published high-temperature lattice parameter data suggests that the hexagonal → monoclinic transition in Sr-rich members of the solid solution may consist of two discrete transitions, and a sequence P6322 → C2 → P21 is suggested. The second transition could be related to instabilities in the hexagonal solid solution. Autocorrelation analysis of the IR spectra reveals a large positive deviation from linear behaviour across the solid solution, which is interpreted in terms of microscopic strain effects. These microscopic strains are probably responsible for the different transformation behaviour shown by samples with different compositions across the solid solution.

Effective distribution coefficients of an ideal solid solution crystal: Monte Carlo simulation

2005 ◽  
Vol 276 (3-4) ◽  
pp. 635-642 ◽  
Author(s):  
Kiiko Matsumoto ◽  
Toshiharu Irisawa ◽  
Masao Kitamura ◽  
Etsuro Yokoyama ◽  
Yoshinao Kumagai ◽  
...  
Keyword(s):  
Solid Solution ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Distribution Coefficients ◽  
Solid Solution Crystal ◽  
Effective Distribution

scholarly journals Pressure-induced fcc to hcp phase transition in Ni-based high entropy solid solution alloys

2017 ◽  
Vol 110 (1) ◽  
pp. 011902 ◽  
Author(s):  
F. X. Zhang ◽  
Shijun Zhao ◽  
Ke Jin ◽  
H. Bei ◽  
D. Popov ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
High Entropy

An EXAFS study of cation site distortions through the P2/c-P1̄ phase transition in the synthetic cuproscheelite-sanmartinite solid solution

1994 ◽  
Vol 58 (391) ◽  
pp. 185-199 ◽  
Author(s):  
P. F. Schofield ◽  
J. M. Charnock ◽  
G. Cressey ◽  
C. M. B. Henderson
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
Stability Field ◽  
Cation Site ◽  
Cu Content ◽  
Square Planar ◽  
Jahn Teller ◽  
Exafs Study ◽  
Four Square ◽  
The Stability

AbstractEXAFS spectroscopy has been used to monitor changes in divalent cation site geometries across the P2/c-P1̄ phase transition in the sanmartinite (ZnWO4)-cuproscheelite (CuWO4) solid solution at ambient and liquid nitrogen temperatures. In the ZnWO4 end member, Zn occupies axially-compressed ZnO6 octahedra with two axial Zn-O bonds at approximately 1.95 Å and four square planar Zn-O bonds at approximately 2.11 Å. The substitution of Zn by Cu generates a second Zn environment with four short square planar Zn-O bonds and two longer axial Zn-O bonds. The proportion of the latter site increases progressively as the Cu content increases. Cu EXAFS reveals that the CuO6 octahedra maintain their Jahn-Teller axially-elongate geometry throughout the majority of the solid solution and only occur as axially-compressed octahedra well within the stability field of the Zn-rich phase with monoclinic long-range order.

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