Liquidus Curve | ScienceGate

By analyzing the cooling curves and the resulting melting point diagrams of the chloromethylsilane- pyridazine and pyrazine systems the existence of the incongruently melting addition compounds CH3SiCl3 • Pyridazine, (CH3)2SiCl2 • (Pyridazine)2, (CH3)3SiCl • (Pyridazine)2, CH3SiCl3 • (Pyrazine)2, (CH3)2SiCl2 • (Pyrazine)2 , (CH3)3SiCl • (Pyrazine)2 was proved. By electro-optical measurements of the turbidity point it was proved that the system (CH3)3SiCl- Pyridazine exhibits a miscibility gap which intersects the liquidus curve of the amine. Based on certain approximations it was possible to fit thermodynamic functions to the experimental results to obtain the excess data of mixing of the corresponding systems. These data allow for a more profound understanding of the Lewis-acid base behaviour of the silanes and amines.Chloromethylsilanes, Pyridazine, Pyrazine, Phase Diagrams, Addition Compounds, Thermodynamic Excess Functions

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Prediction of First Phase Formation at Au-METAL Interfaces Using the Effective Heat of Formation Model

MRS Proceedings ◽

10.1557/proc-238-475 ◽

1991 ◽

Vol 238 ◽

Cited By ~ 2

Author(s):

R. Pretorius ◽

T. K. Marais ◽

A. E. Muller ◽

D. Knoesen

Keyword(s):

Phase Formation ◽

Binary Systems ◽

Heat Of Formation ◽

Liquidus Curve ◽

Effective Concentration ◽

Formation Model ◽

Growth Interface ◽

Effective Heat ◽

Metal Interfaces ◽

Effective Heat Of Formation

ABSTRACTThe effective heat of formation model enables heats of formation to be calculated as a function of concentration. By choosing the effective concentration at the growth interface to be that of the liquidus minimum, the model correctly predicL. first phase formation for 14 binary systems for which experimental data was found, except for the Au-Cu system which does not have a well-defined minimum on the liquidus curve.

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Untersuchungen am System Vanadium—Gallium

Zeitschrift für Naturforschung A ◽

10.1515/zna-1966-0506 ◽

1966 ◽

Vol 21 (5) ◽

pp. 531-540 ◽

Cited By ~ 2

Author(s):

R. G. Maier ◽

Y. Uzel ◽

H. Kandler

Keyword(s):

Crystal Structure ◽

Phase Diagram ◽

Electron Probe ◽

Liquidus Curve ◽

X Ray Diffraction ◽

Equilibrium Conditions ◽

Electron Probe Analysis ◽

X Ray ◽

Oxygen System ◽

Annealing Experiments

The phase diagram of the vanadium-gallium system was investigated by means of thermoanalysis, microscopy, x-ray diffraction, and electron probe analysis.The liquidus curve was measured in the range from 40—80% Gallium. The existence of the known phases V3Ga (Cr3Si-typ), V6Ga5 (Ti6Sn5-typ), V6Ga7 (Cu5Zn8-typ), V2Ga5 (Mn2Hg5-typ), V4GaO and V5Ga3Ox (Mn5Si3-typ) was reestablished. The existence of V3GaOx and V5 (Ga, Si)3Ox is stated and their crystal structure investigated.It is shown that the oxygen content of he samples greatly influences the equilibrium conditions of the system. By means of annealing experiments and dilatometric measurements the phase diagram of the vanadium-gallium-oxygen system was investigated in the range of small oxygen contents.

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Hydrothermal Melting of Shales

Geological Magazine ◽

10.1017/s0016756800000078 ◽

1961 ◽

Vol 98 (1) ◽

pp. 56-66 ◽

Cited By ~ 33

Author(s):

P. J. Wyllie ◽

O. F. Tuttle

Keyword(s):

Water Vapour ◽

Basaltic Magma ◽

Liquidus Curve ◽

Igneous Rocks ◽

Granitic Magma ◽

Refractive Indices ◽

Chemical Characteristics ◽

Complete Fusion ◽

Partial Fusion

AbstractPT curves for the beginning of melting of five analysed shales in the presence of water vapour under pressure are 20° C. to 40° C. higher than the corresponding curve for granite. About 150° C. above the beginning of melting, the shales are half-melted; this is higher than the liquidus curve of most granites. Refractive indices of the quenched liquids (1·495–1·505) indicate a granitic or granodioritic composition. Quartz, cordierite, mullite, hypersthene, anorthite, etc., are developed in the partially fused shales. Partial fusion of shales by a granitic magma, even if superheated, would produce a liquid no more basic than granodiorite. The chemical characteristics of the shales are compared with average igneous rocks, and there appears to be no possibility that fusion of shales could produce a basaltic magma. Complete fusion would produce a melt with composition distinct from normal igneous magmas.

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Liquidus Curve Measurement in the System Y2O3-Al2O3

The Journal of the Society of Chemical Industry Japan ◽

10.1246/nikkashi1898.70.6_834 ◽

1967 ◽

Vol 70 (6) ◽

pp. 834-839 ◽

Cited By ~ 23

Author(s):

Tetsuo NOGUCHI ◽

Masao MIZUNO

Keyword(s):

Liquidus Curve

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Morphological instability of a non-equilibrium ice–colloid interface

Proceedings of The Royal Society A Mathematical Physical and Engineering Sciences ◽

10.1098/rspa.2009.0390 ◽

2009 ◽

Vol 466 (2113) ◽

pp. 177-194 ◽

Cited By ~ 12

Author(s):

S. S. L. Peppin ◽

A. Majumdar ◽

J. S. Wettlaufer

Keyword(s):

Travelling Waves ◽

Colloidal Suspension ◽

Bentonite Clay ◽

Travelling Wave ◽

Liquidus Curve ◽

Colloid Interface ◽

Colloidal Systems ◽

Weakly Nonlinear ◽

Highly Nonlinear ◽

Non Equilibrium

We assess the morphological stability of a non-equilibrium ice–colloidal suspension interface, and apply the theory to bentonite clay. An experimentally convenient scaling is employed that takes advantage of the vanishing segregation coefficient at low freezing velocities, and when anisotropic kinetic effects are included, the interface is shown to be unstable to travelling waves. The potential for travelling-wave modes reveals a possible mechanism for the polygonal and spiral ice lenses observed in frozen clays. A weakly nonlinear analysis yields a long-wave evolution equation for the interface shape containing a new parameter related to the highly nonlinear liquidus curve in colloidal systems. We discuss the implications of these results for the frost susceptibility of soils and the fabrication of microtailored porous materials.

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Microstructure and Wear Properties of TiC/7075 Composites by In Situ Reaction Liquidus Curve Casting Method

Materials Science Forum ◽

10.4028/www.scientific.net/msf.675-677.1121 ◽

2011 ◽

Vol 675-677 ◽

pp. 1121-1124 ◽

Cited By ~ 1

Author(s):

Ping Xu ◽

Feng Wang ◽

Hui Min Liu ◽

Xiang Dong Liu

Keyword(s):

Wear Resistance ◽

Wear Mechanism ◽

Matrix Alloy ◽

Liquidus Curve ◽

Sem Analysis ◽

Wear Properties ◽

Casting Method ◽

Low Load ◽

Cast Microstructure

7075 matrix alloy was fabricated by in-situ reaction liquidus curve casting method, and its as-cast microstructure was analyzed, the wear properties of these composites and matrix alloy were studied under the different conditions. The results show that the wear resistance of TiC/7075 composites is superior to 7075 matrix alloy in the same conditions (with same load or rotating velocity). Because of introduction of particle reinforcements, the wear resistance of the composite is enhanced by 1.5～4 times than that of its matrix. In addition, the wear mass loss of TiC/7075 composites increases almost with increase of load, but decreases with increase of rotating velocity. The wear resistance of the composites increases slightly at low load and high rotating velocity. The SEM analysis of the worn-out surface indicates that the wear mechanism of TiC/7075 composites is mainly abrasive wear.

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