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Now showing items 348-367 of 400
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Ta Melting Point Calculation by Small-cell Coexistence Method
(2014-08-16)We calculate the melting temperature of Tantalum, by employing the small-size coexistence solid-liquid coexistence method. Two pseudo-potentials are employed, namely Ta_v (5d^3 6s^2) and Ta_pv (5p^6 5d^3 6s^2). Results ... -
Ta-V Thermodynamic modeling of Laves phases
(2013-03-29)The Ta–V system is an interesting system exhibiting the existence of Laves phases among elements of the same group in the periodic system, and with an unusual order of stability of Laves phase structures at 0 K. Whereas ... -
Tahoe
Tahoe is a research-oriented platform for the development of numerical methods and material models. The goal of the work surrounding Tahoe is the simulation of stresses and deformations for situations that cannot be treated ... -
Temperature Dependece of the Elastic Constants of Aluminum
(1979-03-02)The single crystal elastic constants of aluminum have been measured using a piezoelectric composite oscillator from room temperature to just 20K below the melting point. The elastic moduli differ markedly from previous ... -
Temperature Variation of the Elastic Constants of Cubic Elements. I. Copper
(1954-09-08)The ultrasonic pulse technique has been used in conjunction with a specially devised cryogenic technique to measure the velocities of 10-Mc/sec acoustic waves in copper single crystals in the range from 4.2°K to 300°K. The ... -
Tensile and Microindentation Stress-Strain Curves of Al-6061
Recent spherical microindentation stress-strain protocols were developed and validated on Al-6061 (DOI: 10.1186/s40192-016-0054-3). The scaling factor between the uniaxial yield strength and the indentation yield strength ... -
Ternary
Ternary is a free energy visualization tool. Inspired by Craig Carter's Mathematica scripts for binary mixtures, it uses qhull to calculate the convex hull of the free energy curve, and visualizes the result including ... -
Theory and Application of Time-Temperature Parameters
(2013-12-03) -
Thermal Dilation of Copper
(1950-01-07)The prediction that certain cubic metals may not be precisely cubic throughout a range of temperature below their melting points led to the present investigation. Pure copper was chosen as the cubic metal to examine for ... -
The Thermal Expansion of Pure Metals: Copper, Gold, Aluminum, Nickel, and Iron
(1941-08-08)Extremely accurate determinations of the linear thermal expansions have been made interferometrically from — 196°C to temperatures about +400°C for Al and +700°C for Fe, Ni, Cu and Au. The relationship between true thermal ... -
Thermo-Calc
Thermo-Calc Software performs thermodynamic calculations including: stable and meta-stable heterogeneous phase equilibria, amounts of phases and their compositions, thermochemical data such as enthalpies, heat capacity and ... -
Thermodynamic analysis of the topologically close packed σ phase in the Co-Cr system
(2019-11)Density functional theory (DFT) calculations show that it is essential to consider the magnetic contribution to the total energy for the end-members of the σ phase. A more straightforward method to use the DFT results in ... -
Thermodynamic assessment of Cr–Nb–C and Mn–Nb–C systems
In the present work, an attempt to provide thermodynamic descriptions for the Cr–Nb–C and Mn–Nb–C systems was made. Various descriptions for most of the binary systems had been already available, so a selection between ... -
Thermodynamic assessment of the Al-Ni system
The sub-lattice model is used to describe the thermodynamic behaviour of the ordered phases existing in the Al-Ni system. The model parameters are derived from an optimisation procedure using all available experimental ... -
Thermodynamic assessment of the Co-Ta system
(2018-12)The Co-Ta system has been reviewed and the thermodynamic description was re-assessed in the present work. DFT (density functional theory) calculations considering spin polarization were performed to obtain the energies for ... -
A thermodynamic assessment of the Ni-Al-B system
(2014-11-20)The thermodynamics of the Ni-Al-B system are assessed based on available literature data. Both the Ni-B and Al-B systems were revised to treat B as an interstitial element in a face-centered cubic structure, rather than ... -
Thermodynamic assessment of the ordered B2 phase in the Ti–V–Cr–Al quaternary system
Thermodynamic assessment of the ordered B2 phase in the quaternary Ti–V–Cr–Al system is carried out. A set of self-consistent thermodynamic parameters is presented. A two-sublattice model (Al,Cr,Ti,V )0.5: (Al,Cr,Ti,V )0.5 ... -
Thermodynamic Assessments of Bi-Te Bi-Se Sb-Te
The Bi-Te, Bi-Se, and Sb-Te systems have been assessed. The compounds Bi2Te3, Bi2Se3, and Sb2Te3 have been assessed using a 3 sublattice model and the intrinsic carriers of each compound have been assessed. The homologous ... -
Thermodynamic Description of the Ti-Al-O System Based on Experimental Data
(2017-06-08)Phase equilibria of the TiO2-Al2O3 system were investigated experimentally using XRD, SEM/EDX and DTA methods. Temperature stability limits of the aluminum titanate (Al2TiO5) were detected. The thermodynamic parameters of ... -
Thermodynamic modeling of Al–Co–Cr, Al–Co–Ni, Co–Cr–Ni ternary systems towards a description for Al–Co–Cr–Ni
The phase relations and thermodynamic properties of the Al–Co–Cr, Al–Co–Ni, Co–Cr–Ni ternary alloys are investigated using first principles calculations based on DFT (density functional theory). Their thermodynamic ...