scholarly journals Experimental Study of the Al-Mg-Sr Phase Diagram at 400°C

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
D. Kevorkov ◽  
M. Medraj ◽  
M. Aljarrah ◽  
Jian Li ◽  
E. Essadiqi ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Experimental Study ◽  
Isothermal Section ◽  
Phase Equilibria ◽  
Phase Analysis ◽  
Solid Solutions ◽  
Intermetallic Phases ◽  
Experimental Literature ◽  
Substitutional Solid Solutions ◽  
Xrd Techniques

The Al-Mg-Sr system is experimentally studied at 400°C using EPMA and XRD techniques. It was determined that the intermetallic phases in the Al-Mg-Sr system have a tendency to form extended substitutional solid solutions. Two ternary phases were found in this system. Solubility limits of binary and ternary phases were determined and the phase equilibria among phases were established. The isothermal section of the Al-Mg-Sr system at 400°C has been constructed using results of the phase analysis and experimental literature data.

scholarly journals PHASE DIAGRAM OF THE TlTe–Tl9TmTe6 SYSTEM

2021 ◽  
pp. 18-22
Author(s):  
I.F. Mehdiyeva ◽  
Keyword(s):  
Phase Diagram ◽  
Phase Equilibria ◽  
Solid Solutions ◽  
X Ray Diffraction ◽  
X Ray

Phase equilibria in the TlTe–Tl9TmTe6 system were experimentally studied by methods of differential thermal and powder X-ray diffraction analyses. The system was found to be non-quasibinary due to the incongruent nature of both initial components melting, but it is stable below solidus and is characterized by formation limited solid solutions (2 mol%) based on Tl9TmTe6 are revealed in the system

scholarly journals Phase equilibria in the YFeO3 – YСoO3 system in air

2021 ◽  
Vol 8 (1) ◽  
pp. 20218108
Author(s):  
A. V. Bryuzgina ◽  
A. S. Urusova ◽  
I. L. Ivanov ◽  
V. A. Cherepanov
Keyword(s):  
Phase Diagram ◽  
Solid Solution ◽  
Phase Equilibria ◽  
Spin State ◽  
Solid Solutions ◽  
Homogeneity Range ◽  
Perovskite Structure ◽  
Single Phase ◽  
Decomposition Temperature ◽  
Unusual Behavior

YFe1-xСоxO3 solid solutions were prepared by glycerol-nitrate technique. The homogeneity range of solid solutions was studied within the temperature range 1173 – 1573 K. A continues series of solid solution below the decomposition temperature of YСоO3, which was shown to be equal to 1266 ± 6 K, begins to narrow at higher temperatures and becomes equal to 0 ≤ x ≤ 0.1 at 1573 K. The phase diagram of the YFeO3 – YСoO3 system in the “T – composition” coordinates was divided into three fields. Similar to the parent ternary oxides, all single-phase YFe1-xСоxO3 solid solutions possess orthorhombically distorted perovskite structure (Pnma space group). Unusual behavior of orthorhombic distortions in YFe1-xСоxO3 with temperature was explained by probable changes in spin state of Co3+ ions.

ChemInform Abstract: Isothermal Section of the Ternary Phase Diagram U-Fe-Ge at 900 °C and Its New Intermetallic Phases.

ChemInform ◽  
2015 ◽  
Vol 46 (29) ◽  
pp. no-no
Author(s):  
M. S Henriques ◽  
D. Berthebaud ◽  
A. Lignie ◽  
Z. El Sayah ◽  
C. Moussa ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Isothermal Section ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Intermetallic Phases

Phase Diagram Relationships in the Ternary System Ti-Ai-V

1990 ◽  
Vol 213 ◽  
Author(s):  
Mohan Paruchuri ◽  
T.B. Massalski
Keyword(s):  
Phase Diagram ◽  
Isothermal Section ◽  
Solid State ◽  
Ternary System ◽  
Phase Equilibria ◽  
Liquidus Surface ◽  
Experimental Techniques

ABSTRACTLiquid-solid and solid state phase equilibria in the ternary system Ti-Al-V have been studied using a combination of several experimental techniques. A likely surface of primary seperation (i.e., the liquidus surface) is proposed in the form of the usual projection on the triangular base and the directions of the monovariant lines are defined. Four ternary invariant reactions have been identified in this system. Solid state equilibria have been determined at 900°C and are presented in the form of an isothermal section through the phase diagram. These are very similar to the relationships reported at 800°C by Hashimoto et al. [1].

scholarly journals Experimental study of the Cu-Al-Sn phase equilibria, close to the copper zone

2017 ◽  
Vol 53 (3) ◽  
pp. 209-213 ◽  
Author(s):  
D.F. Soares ◽  
M. Abreu ◽  
D. Barros ◽  
F. Castro
Keyword(s):  
Thermal Analysis ◽  
Phase Diagram ◽  
Experimental Study ◽  
High Temperature ◽  
Phase Equilibria ◽  
Copper Content ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Experimental Information ◽  
High Copper Content

The ternary Cu-Al-Sn phase diagram is the base for several important types of alloys, with relevant industrial interest and applications. The knowledge of the melting/solidification alloys characteristics are determinant for their preparation and properties control. However, there is a lack of experimental information on the ternary phase diagram, at high temperature. In this work, several alloys, with high copper content and additions of Al, up to 10%, and Sn, up to 14% (in wt%), were studied by thermal analysis and by isothermal phase equilibria determination. The alloys liquidus and solidus lines and the binary ? + ? phase field, at 800?C, are presented for the studied range of compositions.

Experimental Study and Thermodynamic Modeling of Phase Equilibria in BaO-Fe2O3 System

2016 ◽  
Vol 843 ◽  
pp. 16-21 ◽  
Author(s):  
D.A. Vinnik ◽  
E.A. Trofimov ◽  
D.A. Zherebtsov
Keyword(s):  
Phase Diagram ◽  
Experimental Study ◽  
Phase Equilibria ◽  
Thermodynamic Modeling ◽  
Published Data ◽  
Melting Temperatures

This paper presents the results of the synthesis of compounds of BaO-Fe2O3 system and the results of the study of nature and the melting temperatures of the resulting compounds. Based on the analysis of published data, as well as the results of our studies the systematization of information on the BaO-Fe2O3 system was conducted and an updated phase diagram of this system was proposed.

scholarly journals RESEARCH CHEMICAL INTERACTIONS IN THE CuTe–As2Te3 SYSTEM

2021 ◽  
pp. 67-71
Author(s):  
I.I. Aliev ◽  
◽  
S.Sh. Ismailova ◽  
M.H. Shakhbazov ◽  
◽  
...  
Keyword(s):  
Phase Diagram ◽  
Phase Analysis ◽  
Solid Solutions ◽  
Chemical Compound ◽  
Eutectic Composition ◽  
State Diagram ◽  
Eutectic Type ◽  
System State ◽  
Chemical Interactions ◽  
X Ray

By the methods of DTA, XRD, MSA, as well as by measuring the microhardness and determining the density of the alloys, the CuTe–As2Te3 system was studied and a phase diagram was constructed. The system state diagram is of the eutectic type and it is characterized by one chemical compound of Cu3As4Te9 composition. Compounds Cu3As4Te9 melts incongruently at 3200C. Solid solutions based on As2Te3 reaches 8 mol %, and based on CuTe solid solutions are practically not installed. Cu3As4Te9 and As2Te3 form an eutectic composition of 45 mol % As2Te3 and temperature 2650C. The results of X-ray phase analysis have shown that the Сu3As4Te9 compounds is crystallized in the tetragonal syngony with lattice parameters: a = 13.86, c = 18.05 Å, Z = 9, ρpyk. = 6.96 g/cm3, ρrent. = 7.06 g/cm3

scholarly journals The Effect of Sn Addition on Zn-Al-Mg Alloy; Part I: Microstructure and Phase Composition

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5404
Author(s):  
Peter Gogola ◽  
Zuzana Gabalcová ◽  
Martin Kusý ◽  
Henrich Suchánek
Keyword(s):  
Phase Transformation ◽  
Phase Composition ◽  
Solid Solutions ◽  
Volume Content ◽  
Intermetallic Phases ◽  
Mg Alloy ◽  
Transformation Temperatures ◽  
Mg2sn Phase ◽  
Alloy Part ◽  
Xrd Techniques

In this study, the addition of Sn on the microstructure of Zn 1.6 wt.% Al 1.6 wt.% Mg alloy was studied. Currently, the addition of Sn into Zn-Al-Mg based systems has not been investigated in detail. Both as-cast and annealed states were investigated. Phase transformation temperatures and phase composition was investigated via DSC, SEM and XRD techniques. The main phases identified in the studied alloys were η(Zn) and α(Al) solid solutions as well as Mg2Zn11, MgZn2 and Mg2Sn intermetallic phases. Addition of Sn enabled the formation of Mg2Sn phase at the expense of MgxZny phases, while the overall volume content of intermetallic phases is decreasing. Annealing did not change the phase composition in a significant way, but higher Sn content allowed more effective spheroidization and agglomeration of individual phase particles.

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