Results 201 to 210 of about 1,553,923 (243)

Thermodynamics of isolated miscibility gaps

Journal de Chimie Physique, 1997
Un modele thermodynamique de solution a un parametre supposant des interactions ternaires fortes est presente. Ce modele predit des diagrammes de phase contenant des lacunes de miscibilite multiphases isolees. Un exemple numerique de systeme ternaire montre que des lacunes de miscibilite de trois phases se forment et se combinent quand la temperature ...
JE Morral, RH Davies
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Critical Behavior near a Vanishing Miscibility Gap

Physical Review Letters, 1985
We report measurements of the osmotic susceptibility and correlation length for the pseudobinary mixture of guaiacol ($o$-methoxy phenol) plus glycerol-water as a function of temperature and water content $x[x\ensuremath{\equiv}\mathrm{weight}\mathrm{of}\mathrm{water}/(\mathrm{weight}\mathrm{of}\mathrm{water}\mathrm{plus}\mathrm{weight}\mathrm{of ...
, Johnston, , Clark, , Wiltzius, , Cannell   +3 more
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A two- peak miscibility gap

Journal of Phase Equilibria, 1993
A possible occurrence of a miscibility gap with two critical points (two peaks) is shown using a subregular solution model. As is well known, an ordinary miscibility gap is developed when elements A and B of the A-B system repel each other, i.e, the enthalpy of mixing is positive. A two-peak miscibility gap is formed when the magnitude of this positive
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Nanoparticle semiconductor compositions in the miscibility gap

physica status solidi c, 2008
AbstractWhen semiconductor alloys are used to engineer devices one may not be able to achieve compositions that could provide desirable properties such as a specific band gap because there exists an immiscibility of the alloys, particularly when compound semiconductors are involved.
W. A. Jesser, C. T. Schamp
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Nano-Size and Miscibility Gap

Advanced Materials Research, 2012
Reports on the alloys formed from immiscible atoms when they are contained in a nano-sized system have initiated several research activities in the recent years. Bridging of the miscibility gap at nanoscale is significant as it has the potential to produce novel alloy materials with useful technological applications.
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Systems with a Miscibility Gap in the Liquid State

1987
Immiscible alloys have gained a renewed scientific and technological interest, which was stimulated by results of experiments conducted under microgravity conditions. A large number of experiments was performed with immiscibles yielding surprising results, especially on the kinetics of phase separation.
B. Predel, L. Ratke, H. Fredriksson
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An algorithm for calculating multicomponent miscibility gaps

Calphad, 1988
Abstract A general and very simple algorithm for calculating multicomponent miscibility gaps is described. Given one single expression for the free energy of a solution as a function of composition at constant T and P and an overall composition, the algorithm will calculate the compositions and quantities of all the phases at equilibrium.
P.K. Talley, A.D. Pelton
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Growth kinetics of an alloy with a miscibility gap

Journal of Crystal Growth, 1984
Abstract The kinetics of isothermal growth from the melt of a binary solid solution with a miscibility gap is discussed. Diffusion in the crystal is absent and the grown crystal does not decompose afterwards. Possible types of symmetrical phase diagrams for solid and liquid phases have been analyzed for the system involved.
M.B. Geilikman, D.E. Temkin
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The width of miscibility gaps, measured by scattering

Macromolecular Chemistry and Physics, 1997
AbstractIncompatible polymers yield two‐phase binary blends at almost all compositions. In equilibrium, the blends consist of two coexisting phases which have frequently very one sided compositions: Much of one component contains little of the other. The small content of the minor component, the so‐called “partial miscibility”, is important for some ...
E. H. Hellmann, G. P. Hellmann
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Predicting miscibility gaps in reciprocal liquids

Calphad, 2001
There is a strong correlation between the appearance of liquid miscibility gaps in reciprocal phases and the standard Gibbs energy of the reciprocal reaction, DeltadegreesG. The associate solution model does not predict such a correlation but the two-sublattice model does.
Mats Hillert, Bo Sundman
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