The Ternary Phase Diagram for Au-Ga-As Using the Flow Chart Technique

ABSTRACTDegradation of the Au/GaAs interface during heating is a problem which limits device reliability. The “flow chart” method was used to construct the ternary Au-Ga-As phase diagram and determine the equilibrium reactions which are responsible for interfacial degradation. Interfacial degradation was correlated with the removal of Asx from the interface, which lowered the liquidus temperature and enhanced the dissolution of GaAs. The dissolution proceeds by a series of class II reactions within the Au-AuGa-GaAs ternary system and results in the incorporation of Ga into the Au phase, and growth of several AuxGay phases. However, when the processing is accomplished in a manner which prevents the interface from being depleted in As, no interfacial degradation is expected.

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Thermodynamic Analysis of the Fe-Mn-P Ternary Phase Diagram by Combining the First-Principles and CALPHAD Methods

Materials Science Forum ◽

10.4028/www.scientific.net/msf.561-565.1899 ◽

2007 ◽

Vol 561-565 ◽

pp. 1899-1902 ◽

Cited By ~ 7

Author(s):

T. Tokunaga ◽

N. Hanaya ◽

Hiroshi Ohtani ◽

Mitsuhiro Hasebe

Keyword(s):

Experimental Data ◽

Phase Diagram ◽

Ternary System ◽

Thermodynamic Analysis ◽

First Principles ◽

Binary Systems ◽

Ternary Phase ◽

Ternary Phase Diagram ◽

First Principles Calculations ◽

The Enthalpy Of Formation

A thermodynamic analysis of the Fe-Mn-P ternary system has been carried out using the CALPHAD method. Among the three binary systems relevant to this ternary phase diagram, the thermodynamic parameters of the Mn-P binary system were evaluated in this study. The enthalpy of formation of the binary phosphides obtained from our first-principles calculations was utilized in the present analysis to compensate for the lack of available experimental data. The thermodynamic descriptions of the Fe-Mn and Fe-P binary systems were taken from previous studies. The phase equilibria in the Fe-Mn-P ternary system were analysed based on the experimental data on the phase boundaries. The calculated phase diagrams are in agreement with the experimental results.

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Liquidus Temperature Calculation in Sn-Bi-Cd System by ESTPHAD Method

Materials Science Forum ◽

10.4028/www.scientific.net/msf.790-791.265 ◽

2014 ◽

Vol 790-791 ◽

pp. 265-270

Author(s):

Eszter Tatárka ◽

Tamás Mende ◽

András Roósz

Keyword(s):

Phase Diagram ◽

Phase Diagrams ◽

Iteration Method ◽

Liquidus Temperature ◽

Binary Systems ◽

Ternary Phase ◽

Ternary Phase Diagram ◽

Eutectic Point ◽

Temperature Calculation ◽

Binary Phase Diagrams

This paper includes the binary and ternary liquidus temperature calculations of Sn-Bi-Cd system. The calculation was performed in cases of the surfaces of Sn, Bi and Cd phases too. First of all the liquidus curves were calculated in the binary systems (Bi phase in Bi-Cd and Bi-Sn systems, Sn phase in Sn-Cd and Sn-Bi systems, Cd phase in Cd-Sn and Cd-Bi systems). By using the calculated coefficients of the binary phase diagrams and the data from the digitalized ternary phase diagram, the liquidus temperature of Sn, Bi and the Cd phases were calculated. Finally the eutectic point of the binary liquidus curves and the eutectic valley of the Sn and the Bi surfaces were calculated by means of an iteration method.

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Using phase boundary mapping to resolve discrepancies in the Mg2Si–Mg2Sn miscibility gap

Journal of Materials Chemistry A ◽

10.1039/d1ta00115a ◽

2021 ◽

Author(s):

Rachel Orenstein ◽

James P. Male ◽

Michael Toriyama ◽

Shashwat Anand ◽

G. Jeffrey Snyder

Keyword(s):

Phase Diagram ◽

Phase Boundary ◽

Ternary Phase ◽

Ternary Phase Diagram ◽

Miscibility Gap ◽

Boundary Mapping

A new understanding of the MgSi–MgSn miscibility gap is reached through phase boundary mapping the Mg–Si–Sn ternary phase diagram.

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Lattice evolution, ordering transformation and microwave dielectric properties of rock-salt Li3+xMg2–2xNb1-xTi2xO6 solid-solution system: A newly developed pseudo ternary phase diagram

Acta Materialia ◽

10.1016/j.actamat.2021.116636 ◽

2021 ◽

Vol 206 ◽

pp. 116636

Author(s):

Xing Zhang ◽

Zixuan Fang ◽

Hongyu Yang ◽

Peng Zhao ◽

Xiao Zhang ◽

...

Keyword(s):

Phase Diagram ◽

Solid Solution ◽

Dielectric Properties ◽

Ternary Phase ◽

Ternary Phase Diagram ◽

Microwave Dielectric Properties ◽

Solution System ◽

System A ◽

Microwave Dielectric ◽

Solid Solution System

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Calculation of phase diagrams and thermodynamic properties of 14 additive and reciprocal ternary systems containing Li2CO3, Na2CO3, K2CO3, Li2SO4, Na2SO4, K2SO4, LiOH, NaOH, and KOH

Canadian Journal of Chemistry ◽

10.1139/v84-078 ◽

1984 ◽

Vol 62 (3) ◽

pp. 457-474 ◽

Cited By ~ 19

Author(s):

A. D. Pelton ◽

C. W. Bale ◽

P. L. Lin

Keyword(s):

Phase Diagram ◽

Thermodynamic Properties ◽

Molten Salt ◽

Phase Diagrams ◽

Binary Systems ◽

Ternary Phase ◽

Ternary Phase Diagram ◽

Ternary Systems ◽

Maximum Error ◽

Critical Assessment

Phase diagrams and thermodynamic properties of five additive molten salt ternary systems and nine reciprocal molten salt ternary systems containing the ions Li+, Na+, [Formula: see text], OH− are calculated from the thermodynamic properties of their binary subsystems which were obtained previously by a critical assessment of the thermodynamic data and the phase diagrams in these binary systems. Thermodynamic properties of ternary liquid phases are estimated from the binary properties by means of the Conformal Ionic Solution Theory. The ternary phase diagrams are then calculated from these thermodynamic properties by means of computer programs designed for the purpose. It is found that a ternary phase diagram can generally be calculated in this way with a maximum error about twice that of the maximum error in the binary phase diagrams upon which the calculations are based. If, in addition, some reliable ternary phase diagram measurements are available, these can be used to obtain small ternary correction terms. In this way, ternary phase diagram measurements can be smoothed and the isotherms drawn in a thermodynamically correct way. The thermodynamic approach permits experimental data to be critically assessed in the light of thermodynamic principles and accepted solution models. A critical assessment of error limits on all the calculated ternary diagrams is made, and suggestions as to which composition regions merit further experimental study are given.

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Part II. Model for the Protective Coating Formation During Hot Dip Galvanizing/ Część II. Model Formowania Powłoki Ochronnej Podczas Cynkowania Ogniowego

Archives of Metallurgy and Materials ◽

10.2478/amm-2014-0237 ◽

2014 ◽

Vol 59 (4) ◽

pp. 1393-1404 ◽

Cited By ~ 3

Author(s):

W. Wołczynski ◽

Z. Pogoda ◽

G. Garzeł ◽

B. Kucharska ◽

A. Sypien ◽

...

Keyword(s):

Phase Diagram ◽

Mass Balance ◽

Protective Coating ◽

Mathematical Description ◽

Ternary Phase ◽

Ternary Phase Diagram ◽

Solute Redistribution ◽

Zinc Bath ◽

Flux System ◽

Coating Formation

Abstract A mathematical description for the (Zn) - coating formation with the presence of flux in the zinc bath is presented. This description includes the progressive vanishing of the products of the flux disintegration. A function which expresses the flux vanishing is formulated. The solidification of some phase sub-layers in the (Zn) - coating is considered with the use of a hypothetical pseudo-ternary phase diagram Fe-Zn-flux. Some relationships are formulated to define the varying Zn - solute redistribution as observed across the sub-layers. The relationships are based on the mass balance analyzed for the coating / bath / flux system. An amount of the growing phase in a given sub-layers is also defined mathematically.

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