A furnace for in situ synchrotron Laue diffraction and its application to studies of solid-state phase transformations

1990 ◽  
Vol 23 (6) ◽  
pp. 545-549 ◽  
Author(s):  
H. L. Bhat ◽  
S. M. Clark ◽  
A. El Korashy ◽  
K. J. Roberts
Keyword(s):  
Experimental Data ◽  
Thermal Stability ◽  
Phase Transitions ◽  
Solid State ◽  
Synchrotron Radiation ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
Laue Diffraction ◽  
Thermal Stability Of

The design of a new microfurnace for use for Laue diffraction studies of solid-state transformations is described. The furnace operates in the temperature range 298–573 K with a thermal stability of about ± 0.1 K. The potential of the synchrotron-radiation Laue diffraction technique for studies of structural phase transitions is demonstrated. Experimental data on phase transitions in caesium periodate, potassium tetrachlorozincate and pentaerythritol are presented.

THE ELASTIC AND THERMODYNAMIC PROPERTIES OF Lu DOPED ScVO3

2012 ◽  
Vol 26 (31) ◽  
pp. 1250190
Author(s):  
ATAHAR PARVEEN ◽  
N. K. GAUR
Keyword(s):  
Experimental Data ◽  
Thermal Properties ◽  
Phase Transitions ◽  
Thermodynamic Properties ◽  
Specific Heat ◽  
Structural Phase ◽  
Magnetic Ordering ◽  
Structural Phase Transitions ◽  
Lattice Distortions ◽  
Rigid Ion Model

We have investigated the elastic, cohesive and thermal properties of (Lu, Sc) VO 3 and Sc 1-x Lu x VO 3(0.6 ≤ x ≤ 0.9) perovskites by means of a modified rigid ion model (MRIM). The variation of specific heat is determined following the temperature driven structural phase transitions. Also, the effect of lattice distortions on the elastic and thermal properties of the present pure and doped vanadates has been studied by an atomistic approach. The calculated bulk modulus (BT), reststrahlen frequency (ν0), cohesive energy (ϕ), Debye temperature (θD) and Gruneisen parameter (γ) reproduce well with the corresponding experimental data. The specific heat results can further be improved by including the magnetic ordering contributions to the specific heat.

scholarly journals Pressure induced structural phase transitions—A review

2012 ◽  
Vol 10 (5) ◽  
pp. 1391-1422 ◽  
Author(s):  
Purvee Bhardwaj ◽  
Sadhna Singh
Keyword(s):  
Experimental Data ◽  
High Pressure ◽  
Phase Transitions ◽  
Elastic Properties ◽  
Alkaline Earth ◽  
Structural Phase ◽  
Theoretical Work ◽  
Structural Phase Transitions ◽  
Contemporary Status ◽  
Complete Set

AbstractThe contemporary status of experimental as well as theoretical advances within the special view of structural phase transitions is reviewed. A brief outline of phase transitions and its classification is presented first. High-pressure experimental techniques developed for studying the structural phase transitions and elastic properties are reviewed. The complete set of theoretical and experimental data obtained is for the group II–IV alkaline earth chalcogenides. Here the authors review the currently used calculations and high-pressure behavior of these materials and the theoretical work that has been done on them.

Structural phase transitions in ferroelectric crystals and thin films studied by VUV spectroscopic ellipsometry with synchrotron radiation

2013 ◽  
Vol 86 (9) ◽  
pp. 932-940 ◽  
Author(s):  
Krzysztof Dorywalski ◽  
Bohdan Andriyevsky ◽  
Michał Piasecki ◽  
Iwan Kityk ◽  
Christoph Cobet ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transitions ◽  
Synchrotron Radiation ◽  
Spectroscopic Ellipsometry ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
Ferroelectric Crystals

Investigation of structural phase transitions in perovskites using high energy synchrotron radiation

1995 ◽  
Vol 55 (1-4) ◽  
pp. 17-35 ◽  
Author(s):  
H. B. Neumann ◽  
H. F. Poulsen ◽  
U. Rütt ◽  
J. R. Schneider ◽  
M. v. Zimmermann
Keyword(s):  
Phase Transitions ◽  
Synchrotron Radiation ◽  
Structural Phase ◽  
High Energy ◽  
Structural Phase Transitions
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