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

MRS Proceedings ◽

10.1557/proc-213-143 ◽

1990 ◽

Vol 213 ◽

Cited By ~ 6

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].

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Determination of the Effect of Hf Additions on Phase Stability in Nb-Silicide Based In-Situ Composites

MRS Proceedings ◽

10.1557/proc-552-kk6.8.1 ◽

1998 ◽

Vol 552 ◽

Cited By ~ 2

Author(s):

B. P. Bewlay ◽

J.-C. Zhao ◽

M. R. Jackson ◽

R. R. Bishop

Keyword(s):

Isothermal Section ◽

Solid State ◽

Phase Equilibria ◽

Phase Stability ◽

Liquidus Surface ◽

Structural Materials ◽

Aircraft Engines ◽

In Situ Composites

ABSTRACTIn-situ composites based on Nb-Si alloys are potential candidates for application as structural materials in future aircraft engines. In order to achieve the balance of properties that is required, additional alloying species, such as Ti, Hf, Mo, Cr, Al, are employed. The present paper describes the effect of Hf additions on phase stability of Nb-Si alloys. Liquid-solid and solid-state phase equilibria have been investigated. The Nb-Hf-Si liquidus surface and the isothermal section at 1500°C will be described. A broad range of Nb and Hf compositions were investigated for Si concentrations up to 35.0%.

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Solid State Electrochemical Study of Phase Equilibria and Thermodynamics of the Ternary System Y-Fe-O at Elevated Temperatures

Zeitschrift für Naturforschung A ◽

10.1515/zna-1979-0404 ◽

1979 ◽

Vol 34 (4) ◽

pp. 430-436 ◽

Cited By ~ 4

Author(s):

W. Piekarczyk ◽

W. Weppner ◽

A. Rabenau

Keyword(s):

Phase Diagram ◽

Solid State ◽

Ternary System ◽

Phase Equilibria ◽

Elevated Temperatures ◽

Free Energies ◽

Ternary Compounds ◽

Temperature Range ◽

The Third ◽

Galvanic Cell Technique

A solid state galvanic cell technique has been employed to determine the phase diagram of the ternary system Y-Fe-O in the temperature range from 900 to 1250 °C. Only electrical quantities need to be measured and the samples do not have to be quenched. YFeO3 and Y3Fe5O12 exist over the entire temperature range, whereas the third ternary compound YFe2O4-x is only thermodynamically stable above 1010 ± 9 °C. Above 1078 ± 15 °C YFe2O4-x comes into equilibrium with Y2O3.With the same experimental arrangement the standard Gibbs free energies of formation ⊿G f0 of the ternary compounds YFeO3, Y3Fe5O12 and YFe2O4 have been determined to be -1366.0 + 0.2525 X T kJ/mol (1173 ≦ T [K] ≦ 1523), - 4912.2 +0.9990 X T kJ/mol (1173≦T[K] ≦ 1523) and -1615.9 + 0.3068 x T kJ/mol (1283≦T[K] ≦ 1523) as functions of the temperature, respectively

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The UCoAl ternary system: Phases formation and isothermal section of the phase diagram at 900 °C

Solid State Sciences ◽

10.1016/j.solidstatesciences.2004.11.025 ◽

2005 ◽

Vol 7 (6) ◽

pp. 780-783 ◽

Cited By ~ 11

Author(s):

Henri Noël ◽

Olivier Tougait ◽

Robert Troc ◽

Vasyl Zaremba

Keyword(s):

Phase Diagram ◽

Isothermal Section ◽

Ternary System

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ChemInform Abstract: The Isothermal Section of the Phase Diagram of Sm-Cu-Mg Ternary System at 670 K.

ChemInform ◽

10.1002/chin.201550013 ◽

2015 ◽

Vol 46 (50) ◽

pp. no-no

Author(s):

Bernard Marciniak ◽

Volodymyr Pavlyuk ◽

Ewa Rozycka-Sokolowska ◽

Lukasz Karwowski ◽

Zygmunt Bak

Keyword(s):

Phase Diagram ◽

Isothermal Section ◽

Ternary System

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Reassessment of the Binary Mn–Rh Phase Diagram and Experimental Investigations of the Ternary Bi–Mn–Rh System

Journal of Phase Equilibria and Diffusion ◽

10.1007/s11669-020-00820-6 ◽

2020 ◽

Vol 41 (3) ◽

pp. 282-298

Author(s):

Peter Kainzbauer ◽

Martin C. J. Marker ◽

Klaus W. Richter

Keyword(s):

Phase Diagram ◽

Transition Temperature ◽

Ternary System ◽

Phase Equilibria ◽

Powder Xrd ◽

Ferromagnetic Phase ◽

Experimental Investigations ◽

Phase Boundaries ◽

Isothermal Sections

Abstract The binary manganese–rhodium (Mn–Rh) phase diagram was reinvestigated from 5 to 90 at.% Rh with focus on determining the transition temperature between the ordered γ′-Mn3Rh and the γ-Mn phase as well as the transition temperature between of the tetragonal and cubic MnRh phase and phase boundaries, applying XRD, DTA and SEM including EDX. A reassessment of the Mn–Rh phase diagram based on obtained and literature data is given. Furthermore, the phase equilibria of the ternary bismuth–manganese–rhodium (Bi–Mn–Rh) system were experimentally investigated, focusing on the possible existence of new ferromagnetic phases. Isothermal sections at 330 °C and 600 °C were studied applying powder XRD and EDX. The corresponding phase diagram was established based on these results. No additional ferromagnetic phase was found in the ternary system.

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