Now showing items 332-351 of 380

    • Ta Melting Point Calculation by Small-cell Coexistence Method 

      Hong, Qijun; van de Walle, Axel (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 

      Chen, X.P.; Pavlu, J.; Rogl, P.; Vrest, J. (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 

      Tallon, J.L.; Wolfenden, A. (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 

      Overton, W.C.; Gaffney, John (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 

      Weaver, Jordan S.; Khosravani, Ali; Castillo, Andrew; Kalidindi, Surya R.
      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 

      Adam Powell
      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 ...
    • Thermal Dilation of Copper 

      Eppelsheimer, D.S.; Penman, R. R. (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 

      Nix, F. C.; MacNair, D. (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 Inc.
      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 assessment of Cr–Nb–C and Mn–Nb–C systems 

      A.V. Khvan; B. Hallstedt; K. Chang
      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 

      Ibrahim Ansara; Nathalie Dupin; Hans Leo Lukas; Bo Sundman
      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 ...
    • A thermodynamic assessment of the Ni-Al-B system 

      Campbell, CE; Kattner, UR (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 

      H. Wang; N. Warnken; R.C. Reed
      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 

      Peters, Matthew
      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 

      Ilatovskaia, Mariia; Savinykh, Galina; Fabrichnaya, Olga (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 

      Xuan L. Liu; Greta Lindwall; Thomas Gheno; Zi-Kui Liu
      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 ...
    • Thermodynamic modeling of Laves phases in the Ta–V system: Reassessment using first-principles results 

      J. Pavlů; J. Vřešt’ál; X.-Q. Chen; P. Rogl
      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 ...
    • Thermodynamic re-assessment of the Al-Co-W system 

      Wang, Peisheng; Xiong, Wei; Kattner, Ursula R.; Campbell, Carelyn E.; Lass, Eric A.; Kontsevoi, Oleg Y.; Olson, Gregory B.
      The Al-Co-W system and its binary sub-systems Al-Co, Al-W and Co-W were critically reviewed. The thermodynamic description of the Al-Co-W system including all three binaries was developed considering thermodynamic and ...