Anisotropy of thermal expansion of 0.85 Na2CrO4 · 0.15 Na2CO3

1983 ◽  
Vol 164 (3-4) ◽  
Author(s):  
B. N. Mehrotra
Keyword(s):  
Phase Diagram ◽  
Sodium Carbonate ◽  
Radial Growth ◽  
High Temperature Phase ◽  
Miscibility Gap ◽  
Temperature Phase ◽  
Sodium Chromate ◽  
Thermal Methods ◽  
X Ray ◽  
Anisotropy Of Thermal Expansion

AbstractThe phase diagram of the binary system sodium chromate-sodium carbonate has been studied using X-ray and thermal methods. The system shows a large miscibility gap at low as well as at high temperatures. The sodium carbonate rich part yields zone information. Sodium chromate rich crystals show dendritic and radial growth. The hexagonal high-temperature phase of mixed crystals with composition 85 × Na

Revision of the Li–Si Phase Diagram: Discovery and Single-Crystal X-ray Structure Determination of the High-Temperature Phase Li4.11Si

2013 ◽  
Vol 25 (22) ◽  
pp. 4623-4632 ◽  
Author(s):  
Michael Zeilinger ◽  
Iryna M. Kurylyshyn ◽  
Ulrich Häussermann ◽  
Thomas F. Fässler
Keyword(s):  
Phase Diagram ◽  
High Temperature ◽  
Single Crystal ◽  
Structure Determination ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
X Ray

High-temperature phase equilibria in the system Zr–O–N

2006 ◽  
Vol 21 (2) ◽  
pp. 320-328 ◽  
Author(s):  
Alexandre Ermoline ◽  
Mirko Schoenitz ◽  
Edward L. Dreizin
Keyword(s):  
Phase Diagram ◽  
High Temperature ◽  
Invariant Point ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
X Ray Diffraction ◽  
X Ray ◽  
Comparison Of The Results ◽  
Laser Heated ◽  
Scanning Electron

Powders of Zr, ZrO2, and ZrN were mixed and pressed to produce samples with different bulk stoichiometries in the ternary Zr–O–N systems. The samples were laser heated above melting, maintained at a high temperature, and quenched. The processed samples were cross-sectioned and studied using scanning electron microscopy, energy dispersive x-ray spectroscopy, and x-ray diffraction. The results pointed to the location of the ternary invariant point Liquid + Gas + ZrO2 + ZrN on the high-temperature portion of the Zr–ZrO2–ZrN phase diagram. The ternary liquidus in the Zr–O–N system was further constrained based on the comparison of the results obtained in this work with composition histories of zirconium particles burning in air reported earlier. Elemental analysis of nitrogen-rich inclusions found in the samples showed the existence of an extended compositional range for ternary solid Zr–O–N solutions. X-ray diffraction analysis of the quenched samples indicated that these solutions are likely to be derived from the ZrN phase. A preliminary outline of the subsolidus ternary Zr–ZrO2–ZrN phase diagram is constructed based on these findings and the interpretations of the well-known binary Zr–O and Zr–N phase diagrams.

scholarly journals High-temperature phase transition of SrRuO3and SrHfO5: X-ray diffraction and PAC spectroscopy

1996 ◽  
Vol 52 (a1) ◽  
pp. C364-C364
Author(s):  
J. A. Guevara ◽  
S. L. Cuffini ◽  
Y. P. Mascarenhas ◽  
P. de la Presa ◽  
A. Ayala ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Pac Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Temperature Phase Transition

scholarly journals Ionic Conductivity and Phase Transition Behaviour in 4AgI-(1-)-2CuI System

2008 ◽  
Vol 2008 ◽  
pp. 1-4 ◽  
Author(s):  
Mohammed Hassan ◽  
Rfi Rafiuddin
Keyword(s):  
Phase Transition ◽  
Ionic Conductivity ◽  
Binary System ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Conductivity Measurements ◽  
Temperature Dependent ◽  
X Ray ◽  
Dsc Curves ◽  
Transition Behaviour

Samples of general formula 4AgI-(1-)-2CuI, , have been prepared and investigated by XRD, DSC, and temperature-dependent conductivity studies. X-ray diffractograms showed the presence of binary system consisting of AgI and in the sample . Cu-substituted samples showed very similar diffractograms to that of the pure compound which indicates that no effect for the substitution on the nature of the binary system. DSC curves showed the presence of phase transition whose temperature increased with ratio in the system. Ionic conductivity measurements confirmed the occurrence of the phase transition and showed that the high temperature phase is superionic conducting, whose conductivity increases with the increasing amount in the system.

High pressure–high temperature phase diagram of InSe

2004 ◽  
Vol 24 (1) ◽  
pp. 111-116 ◽  
Author(s):  
G. Ferlat ◽  
D. Martínez-García ◽  
A. San Miguel ◽  
A. Aouizerat ◽  
V. Muñoz-Sanjosé
Keyword(s):  
Phase Diagram ◽  
High Pressure ◽  
High Temperature ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
High Pressure High Temperature ◽  
Temperature Phase Diagram
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