Calculation of critical point coordinates of ternary miscibility gap from experimental tie-lines

2014 ◽  
Vol 92 (12) ◽  
pp. 3008-3016 ◽  
Author(s):  
Christelle Goutaudier ◽  
Fabrice Bonnet ◽  
Richard Tenu ◽  
Olivier Baudouin ◽  
Jean-Jacques Counioux
Keyword(s):  
Critical Point ◽  
Miscibility Gap ◽  
Tie Lines

Phase separation of binary mixtures induced by soft centrifugal fields

2021 ◽  
Author(s):  
Thomas Zemb ◽  
Rose Rosenberg ◽  
Stjepan Marčelja ◽  
Dirk Haffke ◽  
Jean-François Dufrêche ◽  
...  
Keyword(s):  
Phase Separation ◽  
Critical Point ◽  
Binary Mixtures ◽  
Liquid Mixture ◽  
Model System ◽  
Binary Liquid Mixture ◽  
Miscibility Gap ◽  
Critical Fluctuations ◽  
Binary Liquid

We use the model system ethanol–dodecane to demonstrate that giant critical fluctuations induced by easily accessible weak centrifugal fields as low as 2000g can be observed above the miscibility gap even far from the critical point of a binary liquid mixture.

Quaternary Phase Equilibria vs. Strain-Energy at the In.53Ga.47As/InP Interface

1989 ◽  
Vol 145 ◽  
Author(s):  
Allan E. Schultz ◽  
Y. Austin Chang
Keyword(s):  
Phase Equilibria ◽  
Strain Energy ◽  
Dominant Factor ◽  
Miscibility Gap ◽  
Bulk Solid ◽  
Tie Lines ◽  
Binary Substrate ◽  
Film Substrate ◽  
Gap Data ◽  
Quaternary Phase Equilibria

AbstractExtensive new data and modeling in the In-Ga-As system has allowed the authors to reexamine the phase equilibria between the melt and the epitaxial solid. A detailed thermodynamic model was constructed with the following improvements: (1) The solid-solid interaction parameters were based on InAs-GaAs miscibility gap data, and (2) liquid-bulk solid, as well as liquid-epitaxial solid, tie-lines were used. Comparison of tie- lines from epitaxial systems and bulk systems demonstrated that strain energy is not the dominant factor in equilibrium growth of epitaxial solid films of In1-xGaxAs on any Ill-V binary substrate. Both the “lattice- pulling” effect and the “substrate-orientation” effect were shown to be caused by different quaternary equilibria at the In1-xGaxAs/InP interface, and not by film-substrate strain.

scholarly journals Closed-Loop Miscibility Gap and Quantitative Tie-Lines in Ternary Membranes Containing Diphytanoyl PC

2006 ◽  
Vol 90 (12) ◽  
pp. 4428-4436 ◽  
Author(s):  
Sarah L. Veatch ◽  
Klaus Gawrisch ◽  
Sarah L. Keller
Keyword(s):  
Closed Loop ◽  
Miscibility Gap ◽  
Tie Lines

Solidification of Undercooled Monotectic Alloys

1981 ◽  
Vol 9 ◽  
Author(s):  
J. H. Perepezko ◽  
C. Galaup ◽  
K. P. Cooper
Keyword(s):  
Phase Separation ◽  
Critical Point ◽  
Phase Distribution ◽  
Segregation Pattern ◽  
Miscibility Gap ◽  
Coarse Scale ◽  
Wetting Behavior ◽  
Liquid Segregation ◽  
Compositional Segregation

ABSTRACTDuring the processing of monotectic alloys large compositional segregation of the liquid can precede final solidification. Under normal treatment a coarse scale phase distribution is obtained as a result of convection and sedimentation effects which may be minimized by microgravity processing. In undercooled droplets (5–20μ) of Bi-Ga alloys with compositions near the monotectic point, a finescale segregation has been observed and is similar to that formed during a microgravity treatment of bulk samples. Near the critical point of the miscibility gap, Bi-rich alloys exhibit an undercooling prior to phase separation, while in Ga-rich alloys the onset of phase separation is at the miscibility gap boundary. Similarly, in Cu-Pb alloys an undercooling below the miscibility gap prior to phase separation is observed for Cu-rich alloys, but not for Pb-rich alloys near the critical point. These observations are consistent with the operation of a critical point wetting behavior which can modify the liquid segregation pattern during microgravity treatment.

THE SYSTEM: ALUMINIUM–INDIUM–SILVER: PART I. THE BINARY AND TERNARY MISCIBILITY GAPS

1966 ◽  
Vol 44 (6) ◽  
pp. 657-660 ◽  
Author(s):  
A. N. Campbell ◽  
R. Wagemann
Keyword(s):  
Critical Temperature ◽  
Binary System ◽  
Ternary System ◽  
Critical Point ◽  
Solid Phase ◽  
Miscibility Gap ◽  
Partial Miscibility ◽  
Miscibility Gaps

The miscibility gap in the binary system: Al–In has been investigated and the critical temperature and composition estimated as 945 °C and 68.8% In, 31.2% Al (by weight).The liquid–liquid partial miscibility region of the ternary system has also been determined. The lowest temperature at which two liquids can exist in equilibrium before a third (solid) phase appears was found to be approximately 590°. At this temperature, the ternary gap extends to 30.5% Ag, 34.7% Al, and 34.8 In. Isotherms of the ternary gap are given for 50° intervals between 650° and 900°. A true ternary critical point does not exist, i.e. the binary critical temperature is lowered continuously by addition of silver.

Anomalous small-angle-X-ray scattering on Al–Zn and Al–Zn–Ag alloys

1985 ◽  
Vol 18 (6) ◽  
pp. 480-486 ◽  
Author(s):  
O. Lyon ◽  
J. J. Hoyt ◽  
R. Pro ◽  
B. E. C. Davis ◽  
B. Clark ◽  
...  
Keyword(s):  
Small Angle ◽  
Ternary Alloys ◽  
Weighted Sums ◽  
Miscibility Gap ◽  
Two Phase ◽  
Anomalous Effect ◽  
Angle Scattering ◽  
Zn Content ◽  
Tie Lines ◽  
Radiation Laboratory

Anomalous small-angle scattering (ASAXS) spectra from Al–Zn and Al–Zn–Ag alloys have been recorded at the Stanford Synchrotron Radiation Laboratory (SSRL). The data were obtained at different energies close to the Zn absorption edge. For the binary alloy, the ASAXS intensities follow quantitatively the variation in the atomic scattering factor of zinc. For the ternary alloys, the anomalous effect decreases when the Zn content decreases. Although only weighted sums of the partial structure functions could be determined, it is shown that the results are consistent with the `two-phase' unmixing model and the direction of tie lines of the metastable miscibility gap has been determined. A new method for analyzing ASAXS data for two absorption edges is proposed.

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