Phase equilibrium, crystallization behavior and thermodynamic studies of (m-dinitrobenzene+vanillin) eutectic system

2015 ◽  
Vol 89 ◽  
pp. 197-204 ◽  
Author(s):  
Jayram Singh ◽  
N.B. Singh
Keyword(s):  
Phase Equilibrium ◽  
Crystallization Behavior ◽  
Eutectic System ◽  
Thermodynamic Studies ◽  
Equilibrium Crystallization

Phase Diagram and Electrical Conductivity of the AgCl-NdCl3 Binary System

2008 ◽  
Vol 63 (5-6) ◽  
pp. 364-370 ◽  
Author(s):  
Monika Szymanska-Kolodziej ◽  
Pavel Kolodziej ◽  
Leszek Rycerz ◽  
Marcelle Gaune-Escard
Keyword(s):  
Phase Diagram ◽  
Electrical Conductivity ◽  
Differential Scanning Calorimetry ◽  
Phase Equilibrium ◽  
Binary System ◽  
Eutectic Composition ◽  
Liquid Mixtures ◽  
Eutectic System ◽  
Scanning Calorimetry ◽  
Simple Eutectic System

Differential scanning calorimetry (DSC) was used to investigate the phase equilibrium in the AgCl- NdCl3 system. This binary mixture represents a typical example of simple eutectic system, with eutectic composition x(AgCl)=0.796 and temperature Teut = 668 K, respectively. The electrical conductivity of AgCl-NdCl3 liquid mixtures, together with that of pure components was measured down to temperatures below solidification. Results obtained are discussed in terms of possible complex formation.

Phase equilibrium and crystallization behavior of mixed lipid systems

2003 ◽  
Vol 80 (4) ◽  
pp. 301-306 ◽  
Author(s):  
Baomin Liang ◽  
Yuping Shi ◽  
Richard W. Hartel
Keyword(s):  
Phase Equilibrium ◽  
Crystallization Behavior

scholarly journals Impact of experimentation in thermodynamic studies of some metallic and oxidic systems

2002 ◽  
Vol 38 (3-4) ◽  
pp. 213-227 ◽  
Author(s):  
R.E. Aune ◽  
P. Fredriksson ◽  
S. Seetharaman
Keyword(s):  
Experimental Data ◽  
Phase Diagram ◽  
Phase Equilibrium ◽  
Experimental Techniques ◽  
Thermodynamic Studies ◽  
Thermodynamic Activities ◽  
Steel Industries

The importance of experimentation as an ingredient to CALPHAD assessments is brought out in the present paper and is illustrated in the case of a number of metallic and oxidic systems. Two types of experimental techniques have been used in the present laboratory for thermodynamic studies, and the details are presented. The results obtained together with the assessed phase diagram in the case of a few selected systems are presented. It was shown that careful experimentation has brought new features in the case of carbide systems involving Mn, and a new 4-phase equilibrium in the case of Ni-W-O system. New data with regard to the thermodynamic activities of FeO-containing slag systems and sulphide capacities of multicomponent slags, obtained by gas equilibration method, are also presented. A thermodynamic software, THERMOSLAG? based on the experimental data has been found to be extremely useful by the steel industries is also discussed.

The system diopside-anorthite—åkermanite

1958 ◽  
Vol 31 (240) ◽  
pp. 736-743 ◽  
Author(s):  
E. Christiaan De Wys ◽  
Wilfrid R. Foster
Keyword(s):  
Phase Equilibrium ◽  
High Temperature ◽  
High Temperature Phase ◽  
Stable Phase ◽  
Eutectic System ◽  
Temperature Phase ◽  
Simple Eutectic System ◽  
Equilibrium Relationships ◽  
Quenching Method

SummaryThe high-temperature phase equilibrium relationships in the system diopside-anorthite—åkermanite have been investigated by the quenching method. This system may be regarded as essentially a simple eutectic system. The eutectic is located at the composition 9 diopside:44 anorthite:47 åkermanite (by weight) and at a temperature of 1226° C. Åkermanite is a stable phase at least as low as this temperature. Triclinic anorthite is the only form of CaAl2Si2O8 encountered in the liquidus range of temperatures.

Crystallization sequence of an A1N-Y2O3-SiO2 glass-ceramic

1986 ◽  
Vol 44 ◽  
pp. 446-447
Author(s):  
T.R. Dinger ◽  
G. Thomas
Keyword(s):  
High Temperature ◽  
Glass Ceramic ◽  
Crystallization Behavior ◽  
High Stress ◽  
Crystallization Sequence ◽  
Sio2 Glass ◽  
Structural Applications ◽  
Ceramic Precursors

The use of Si3N4, alloys for high temperature, high stress structural applications has prompted numerous studies of the oxynitride glasses which exist as intergranular phases in their microstructures. Oxynitride glasses have been investigated recently in their bulk form in order to understand their crystallization behavior for subsequent Si3N4 applications and to investigate their worth as glass-ceramic precursors. This research investigates the crystallization sequence of a glass having a normalized composition of Y26Si30Al11 ON11 and lying in the A1N-Y2O3-SiO2 section of the Y-Si-Al-O-N system. Such glasses exist as intergranular phases in the technologically important Y2O3/Al2O3-fluxed Si3N4 alloys.

In situ TEM observations of melting in nanosized eutectic Pb-Cd inclusions embedded in Al

1996 ◽  
Vol 54 ◽  
pp. 986-987
Author(s):  
S. Hagège ◽  
U. Dahmen ◽  
E. Johnson ◽  
A. Johansen ◽  
V.S. Tuboltsev
Keyword(s):  
Electron Microscope ◽  
Melt Spinning ◽  
Ternary Alloys ◽  
Solid Matrix ◽  
Eutectic System ◽  
In Situ Tem ◽  
In Situ Observation ◽  
Orientation Relationships ◽  
Transmission Electron

Small particles of a low-melting phase embedded in a solid matrix with a higher melting point offer the possibility of studying the mechanisms of melting and solidification directly by in-situ observation in a transmission electron microscope. Previous studies of Pb, Cd and other low-melting inclusions embedded in an Al matrix have shown well-defined orientation relationships, strongly faceted shapes, and an unusual size-dependent superheating before melting.[e.g. 1,2].In the present study we have examined the shapes and thermal behavior of eutectic Pb-Cd inclusions in Al. Pb and Cd form a simple eutectic system with each other, but both elements are insoluble in solid Al. Ternary alloys of Al (Pb,Cd) were prepared from high purity elements by melt spinning or by sequential ion implantation of the two alloying additions to achieve a total alloying addition of up to lat%. TEM observations were made using a heating stage in a 200kV electron microscope equipped with a video system for recording dynamic behavior.

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