The thallium-indium phase diagram as a function of composition, temperature and pressure

Meyerhoff, R. W.; Smith, J. F.

doi:10.1016/0001-6160(63)90087-7

Cited by 38 publications

(3 citation statements)

References 12 publications

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“…% Tl which is a composition in the range where the high-temperature fcc phase becomes unstable to an fct phase at lower temperatures 34 . Following the standard explanation of the tetragonal distortion 35 , one expects that the fct phase is stabilized by large gaps in the electronic dispersion relations at the Bragg planes derived from the {111} and {200}…”

Section: Thermal-expansivity Measurementsmentioning

confidence: 99%

Electronic instabilities in shape-memory alloys: Thermodynamic and electronic structure studies of the martensitic transition

Lashley

Schulze²,

Mihaila³

et al. 2007

Phys. Rev. B

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Using a variety of thermodynamic measurements made in magnetic fields, we show evidence that the diffusionless transition (DT) in many shape-memory alloys is related to significant changes in the electronic structure. We investigate three alloys that show the shape-memory effect (In-24 at.% Tl, AuZn, and U-26 at.% Nb). We observe that the DT is significantly altered in these alloys by the application of a magnetic field. Specifically, the DT in InTl-24 at.% shows a decrease in the DT temperature with increasing magnetic field. Further investigations of AuZn were performed using an ultrasonic pulse-echo technique in magnetic fields up to 45 T. Quantum oscillations in the speed of the longitudinal sound waves propagating in the [110] direction indicated a strong acoustic de Haas-van Alphen-type effect and give information about part of the Fermi surface.

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Section: Thermal-expansivity Measurementsmentioning

confidence: 99%

Electronic instabilities in shape-memory alloys: Thermodynamic and electronic structure studies of the martensitic transition

Lashley

Schulze²,

Mihaila³

et al. 2007

Phys. Rev. B

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“…Among the many references on thermomechanics of the InTl family of alloys particularly relevant for the present analysis are [18][19][20][21][22][23][24][25][26][27][28]. The relevant data from these references have been manipulated as described below by means of Mathematica [29], which has also produced the plots in Figures 1 to 3 and the free energy landscapes in Figures 4 to 7.…”

Section: Comparison With Some Experimental Datamentioning

confidence: 99%

Some Remarks on the fcc-fct Phase Transformation in InTl Alloys

Pitteri

2009

Mathematics and Mechanics of Solids

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Zimmer and collaborators have recently proposed an alternative approach to Landau's for phase transformations, in which they replace the energy expression in terms of polynomials, a stiff family of functions, with one in terms of more flexible functions, for instance certain splines. One of the arguments in favor of this more flexible choice is the inability of an energy proposed earlier by Ericksen and James to fit reasonably well all the elasticities of an InTl alloy, in particular the wide difference in the measured 1 L 44 and 1 L 66 elasticities of the InTl martensite. While the proposal of Zimmer is theoretically very interesting and fit for numerical applications, and shows potential for modelling materials with complex internal structure, here I show that the pessimism about the standard Landau approach is indeed excessive as far as the weak points of the Ericksen-James energy are concerned. I propose a fourth-degree polynomial energy which extends the one of Ericksen and provides a fairly accurate fit of the equilibria as well as the elasticities for an In15.52%Tl alloy1 and perhaps also for different compositions in the InTl family. The starting point is the version of Ericksen's theory [5] given in [12].

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“…[1][2][3][4][5][6] The measurement of electrical resistance is one of the useful methods for determining the phase relation. Tantalum is often used as a material of electrodes connecting the material of the sample and the lead electrodes during the measurement.…”

Section: Introductionmentioning

confidence: 99%