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.

Miscibility Gaps in Fused Salts. Note X. The Reciprocal Ternary System K, Li/Br, F

1979 ◽  
Vol 34 (7) ◽  
pp. 836-839 ◽  
Author(s):  
Chiara Margheritis ◽  
Giorgio Flor ◽  
Cesare Sinistri
Keyword(s):  
Ternary System ◽  
Temperature Dependence ◽  
Interaction Parameters ◽  
Miscibility Gap ◽  
Solution Theory ◽  
Ionic Solution ◽  
Fused Salts ◽  
Miscibility Gaps ◽  
Solid Liquid ◽  
Stable Diagonal

Solid-liquid and liquid-liquid equilibria in the reciprocal ternary system K, Li/Br, F were fully measured.The projection of the miscibility gap occupies 20.8% of the composition square; the upper critical point of the gap is along the stable diagonal at 953°C and xLIF = 0.70.Attempts to predict the liquid-liquid equilibria by means of the conformal ionic solution theory using temperature independent interaction parameters lead to an incorrect symmetry of the gap. The symmetry can be improved if the temperature dependence of the interaction parameters of the binary mixtures is taken into account.

Investigation of the Phase Equilibria in the System Neon-Xenon Using a Diamond-Anvil System

1983 ◽  
Vol 22 ◽  
Author(s):  
J.A. Schouten ◽  
L.C. Van Den Bergh ◽  
N.J. Trappeniers
Keyword(s):  
Critical Temperature ◽  
Critical Point ◽  
Double Point ◽  
Critical Line ◽  
Solid Phase ◽  
Volatile Component ◽  
The Other ◽  
Temperature Minimum ◽  
Ideal System ◽  
Diamond Anvil

The critical line of a nearly ideal binary system generally moves from the critical point of one of the components directly to the critical point of the other component (curve 1 Fig. 1). In a less ideal system, however, the behaviour is quite different. In some cases the curves move from the critical point of the less volatile component (component 2) to lower temperatures and higher pressures (curve 2) and rise again to higher temperatures via a temperature minimum, the critical double point. In other systems, the critical temperature increases continuously from the critical point of the less volatile component when the pressure is increased (curve 3). We assume here that the critical line is not interrupted by the appearance of a solid phase.

Phase relations in the system PbS-PbSe-PbTe

1994 ◽  
Vol 58 (393) ◽  
pp. 567-578 ◽  
Author(s):  
H. Liu ◽  
L. L. Y. Chang
Keyword(s):  
Solid Solution ◽  
Critical Temperature ◽  
Ternary System ◽  
Temperature Dependence ◽  
Interaction Parameter ◽  
Phase Relations ◽  
Solid Solution Series ◽  
Complete Solid Solution ◽  
Miscibility Gaps ◽  
Subregular Model

AbstractPhase relations in the system PbS-PbSe-PbTe were investigated in the temperature range between 1150 and 300°C. There is a complete solid solution series along the join PbS-PbSe, whereas miscibility gaps exist below ∼ 350°C and 805°C along joins PbSe-PbTe and PbS-PbTe, respectively. Both gaps extend into the ternary system, and the range of the gap between PbS and PbTe reduces in size with temperature as well as Se-content.By using the subregular model of mixing (Ganguly and Saxena, 1987), mixing energetics and activity composition relations of PbX were derived. The temperature-dependence of the interaction parameters was calculated to be 5057.6 − 1.7T, 9605.2 − 4.4T, 3933.2 − 3.1T (T < 500°C), 6410.3 − 6.35T (T < 500°C) 1649 − 0.26T, 1594.6 − 0.2T, and 12906.3 − 17.3T for WWSte, WTeS, WSeTe, WTeSe, WSSe, WSeS, and WSSeTe, respectively. A critical temperature along the join PbS-PbSe at ∼ 100°C was obtained from interaction parameter calculation, which suggests the separation of the PbS-PbSe series.Correlation of solid-solution ranges established in this study with natural occurrences was made.

Thermodynamic Properties of Solid Systems AgCl + NaCl and AgBr + NaBr from Miscibility Gap Measurements

1972 ◽  
Vol 27 (1) ◽  
pp. 149-154 ◽  
Author(s):  
Cesare Sinistri ◽  
Riccardo Riccardi ◽  
Chiara Margheritis ◽  
Paolo Tittarelli
Keyword(s):  
High Temperature ◽  
Critical Temperature ◽  
Thermodynamic Properties ◽  
Enthalpy Of Mixing ◽  
Solubility Data ◽  
Miscibility Gap ◽  
X Ray ◽  
Experimental Solubility Data ◽  
Experimental Solubility ◽  
Miscibility Gaps

Abstract Miscibility gaps for the solid systems AgCl + NaCl and AgBr+NaBr have been measured by a high temperature X-ray technique.For the two studied systems the solubility curves are very nearly symmetrical in respect to the compositions xNaCl = .513 and xNaBr = .506, while the upper critical temperature are 198 °C for AgCl + NaCl and 285 °C for AgBr+NaBr.The thermodynamic properties of the two solid systems have been calculated using only experimental solubility data. Values of activity and of enthalpy of mixing were estimated and compared with those reported in literature.

The phase instability and critical point in a liquid mixture of an associating and inert component

1979 ◽  
Vol 44 (12) ◽  
pp. 3574-3587
Author(s):  
Julius Pouchlý ◽  
Antonín Sikora
Keyword(s):  
Binary System ◽  
Critical Point ◽  
Multicomponent Mixture ◽  
Liquid Mixture ◽  
Inert Component ◽  
Phase Instability ◽  
Complex Species ◽  
Total Composition ◽  
Association Equilibria ◽  
The Individual

The problem of phase instability in a binary mixture of an associating component with an inert component is analyzed from the standpoint of the theory of association equilibria. It is demonstrated that conditions of the spinodal and critical point for such a binary system are equivalent to those of the spinodal and critical point of a multicomponent mixture consisting of complex species arising by association (including nonassociated molecules). These conditions are formulated so as if species in this mixture did not participate in association and dissociation processes; configurational terms expressing changes in the content of the individual complexes depending on changes in total composition are included implicitly.

scholarly journals Novel Co-Cu-Based Immiscible Medium-Entropy Alloys with Promising Mechanical Properties

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 238
Author(s):  
Sujung Son ◽  
Jongun Moon ◽  
Hyeonseok Kwon ◽  
Peyman Asghari Rad ◽  
Hidemi Kato ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Binary System ◽  
Design Methodology ◽  
Miscibility Gap ◽  
Face Centered Cubic ◽  
Solid Solution Strengthening ◽  
Solution Strengthening ◽  
Face Centered ◽  
Strength And Ductility ◽  
Cobalt Copper

New AlxCo50−xCu50−xMnx (x = 2.5, 10, and 15 atomic %, at%) immiscible medium-entropy alloys (IMMEAs) were designed based on the cobalt-copper binary system. Aluminum, a strong B2 phase former, was added to enhance yield strength and ultimate tensile strength, while manganese was added for additional solid solution strengthening. In this work, the microstructural evolution and mechanical properties of the designed Al-Co-Cu-Mn system are examined. The alloys exhibit phase separation into dual face-centered cubic (FCC) phases due to the miscibility gap of the cobalt-copper binary system with the formation of CoAl-rich B2 phases. The hard B2 phases significantly contribute to the strength of the alloys, whereas the dual FCC phases contribute to elongation mitigating brittle fracture. Consequently, analysis of the Al-Co-Cu-Mn B2-strengthened IMMEAs suggest that the new alloy design methodology results in a good combination of strength and ductility.

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.

THE SYSTEM: BISMUTH–CADMIUM–MERCURY

1965 ◽  
Vol 43 (7) ◽  
pp. 1924-1928 ◽  
Author(s):  
A. N. Campbell ◽  
E. M. Kartzmark
Keyword(s):  
Binary System ◽  
Ternary Alloy ◽  
Room Temperature ◽  
Solid Phase ◽  
Liquidus Surface ◽  
Molar Volumes ◽  
X Ray

The liquidus surface of this ternary alloy has been determined, together with the nature of the solid phase separating from various melts. The densities and molar volumes of the binary system: Cd—Hg have been determined and it is shown that there is marked contraction when the α and β phases form from the components. X-ray powder photographs of various Cd—Hg alloys at room temperature have been made and the limits of homogeneity determined.

Solid-state mechanical alloying of plastic crystals

1997 ◽  
Vol 12 (12) ◽  
pp. 3254-3259 ◽  
Author(s):  
J. Font ◽  
J. Muntasell ◽  
E. Cesari ◽  
J. Pons
Keyword(s):  
Solid State ◽  
Binary System ◽  
Mechanical Alloying ◽  
Ball Milling ◽  
Room Temperature ◽  
Binary Systems ◽  
Solid Phase ◽  
Stable State ◽  
Plastic Crystals ◽  
Dsc Measurements

Ball milling has been used as a solid-state mechanical alloying technique in two binary systems of plastic crystals: neopentylglycol/pentaglycerin (NPG/PG), showing a partial solubility in the ordered phase, and 2-amino-2-methyl-1,3-propanediol/tris(hydroxymethyl) (AMP/TRIS) whose immiscibility in this ordered solid phase is almost total. For the AMP/TRIS system the stable state at room temperature was reached by milling. Contrarily, for NPG/PG, DSC measurements reveal that an annealing period is required after milling. These results have been compared with those of the pentaglycerin/pentaerythritol (PG/PE) binary system, previously studied, whose miscibility is total at room temperature.

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