Now showing items 33-52 of 71

    • Experimental Investigation and Thermodynamic Modeling of the Co-Rich Region in the Co-Al-Ni-W Quaternary System 

      Zhu, Jun; Titus, Michael S; Pollock, Tresa M (2017-03-20)
      The stabilities of the γ-(Co), γ′-Co3(Al,W), μ-Co7W6, β-CoAl and α-(W) phases in the Co-Al-W and Ni-Al-W ternary systems were investigated at 900, 1000, 1100 and 1300 °C. Electron probe microanalysis was used to determine ...
    • Experimental study and thermodynamic modeling of the Al–Co–Cr–Ni system 

      Thomas Gheno; Xuan L Liu; Greta Lindwall; Zi-Kui Liu; Brian Gleeson
      A thermodynamic database for the Al–Co–Cr–Ni system is built via the Calphad method by extrapolating re-assessed ternary subsystems. A minimum number of quaternary parameters are included, which are optimized using ...
    • Fe-Si-Zn Experimental investigation and thermodynamic reassessment 

      Du, Y.; Liu, Shuhong; Sha, C.; Xu, Honghui; Zhang, L. (2013-03-29)
      Based on the critical evaluation of the experimental data available in the literature, the isothermal section of the Fe–Si–Zn system at 873 K was measured using a combination of X-ray analysis and scanning electron microscopy ...
    • Fe–Mn and Fe–Mn–C systems Thermodynamics effects on hcp phase 

      Jacques, P.; Nakano, J. (2013-03-29)
      The thermodynamic parameters of the ε (hcp) phase with respect to the γ (fcc) phase in the Fe–Mn system have been re-visited by utilizing the least squares refinement method applied to experimental values of enthalpy and ...
    • First-Principles Calculations, Experimental Study, and Thermodynamic Modeling of the Al-Co-Cr System 

      Xuan L. Liu; Thomas Gheno; Bonnie B. Lindahl; Greta Lindwall; Brian Gleeson; Zi-Kui Liu
      The phase relations and thermodynamic properties of the condensed Al-Co-Cr ternary alloy system are investigated using first-principles calculations based on density functional theory (DFT) and phase-equilibria experiments ...
    • Gd–Mg–Sm Thermodynamic Description 

      Du, Z.; Li, C. (2013-03-28)
      The Mg–Sm, Gd–Sm and Gd–Mg–Sm systems were thermodynamically optimized using the CALPHAD technique. The solution phases, liquid, bcc, hcp and rhombohedral, were described by the substitutional solution model. The isostructural ...
    • H-Ti Thermodynamic description 

      Du, J.L.; Kong, X.C.; Li, C.H.; Li, Z.H. (2013-03-29)
      Previous thermodynamic assessments of the Ti–H system are reviewed, and a new evaluation is carried out by taking into account the liquid phase in the system using the associate solution model. The sublattice model is ...
    • Hg–Ga-Mg Thermodynamic assessment of phase equilibria 

      Feng, Y.; Jin, Zhan-Peng; Liu, Huashan; Wang, R. (2013-03-29)
      Phase relations in the Mg–Hg–Ga ternary system have been experimentally and thermodynamically studied. At first, the isothermal sections of the Mg–Hg–Ga system in the Mg-rich region at 673 K and 473 K were investigated by ...
    • Interdiffusivities and atomic mobilities in FCC Co–Mo–W alloys 

      Xuwen He; Weibin Zhang; Mingyuan Yan; Chong Chen; Yong Du; Lijun Zhang; Bai-yun Huang
      By employing six groups of bulk diffusion couples together with electron probe microanalysis technique, the composition dependence of ternary interdiffusion coefficients in Co-rich fcc Co–Mo–W alloys at 1373 K was determined ...
    • In–Eu and In–Yb Thermodynamic assessments 

      Gao, F.; Friedl, J.; Liu, X.J.; Wang, C.P.; Wang, S.J. (2013-07-08)
      Based on the experimental data including thermodynamic properties and phase equilibria, thermodynamic assessments of the In–Eu and In–Yb binary systems have been carried out by using the CALPHAD (Calculation of Phase ...
    • Li–O Thermodynamic assessment 

      Chang, Keke; Hallstedt, B. (2013-03-30)
      The Li–O system has been investigated by means of the CALPHAD approach. The phase equilibria and thermodynamic data of this system are critically reviewed and assessed. The liquid phase and two stable lithium oxides, Li2O ...
    • Mg–Nd, Mg–Zn, and Mg–Nd–Zn Thermodynamic description on the miscibility gap 

      Du, Zhenmin; Guo, Cuiping; Li, Changrong; Liu, M.; Niu, C.J. (2013-03-29)
      With the consideration of the existence of the metastable miscibility gaps, the thermodynamic parameters of the Mg-based solid solution have been assessed for the Mg–Zn and Mg–Nd systems. The new semi-empirical equation ...
    • Mg–Si–Zn Experimental investigation and thermodynamic modeling 

      Du, Y.; Liu, Shuhong; Wang, Man; Wang, Peisheng; Xu, Honghui; Zhang, Weiqing (2013-03-30)
      The isothermal section at 327 °C for the Mg–Si–Zn system has been determined by means of X-ray diffraction (XRD) and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX). No ternary compound has ...
    • Mn-Nb-Si Thermodynamic assessment 

      Du, Zhenmin; Geng, T.; Guo, Cuiping; Li, Changrong; Xu, H.B.; Zhao, X. (2013-03-29)
      Based on the experimental isothermal sections at 800, 1000, 1700 and 1800 °C and the liquidus projections from both the literature and the present measurements, the ternary Nb–Si–Mo system is thermodynamically assessed ...
    • Mn-Ni-Si 

      Du, Yong; He, Cuiyen; Hu, Biao; Liu, Shuhong; Peng, Yingbiao; Sha, Chunsheng; Xu, Honghui; Zhao, Dongdong (2013-04-01)
      The Mn–Ni–Si system has been investigated via thermodynamic modeling coupled with key experiments. The isothermal section at 1000 °C of the Mn–Ni–Si system was determined by means of XRD and SEM/EDX. Based on the critically ...
    • Mobility Database Pb(S,Te) System 

      Peters, Matthew
      The mobility and thermodynamics of the Pb(S,Te) have been assessed using a diffusion couple.
    • Modeling of Fe–W phase diagram using first principles and phonons calculations 

      Aurélie Jacob; Clemens Schmetterer; Lorenz Singheiser; Angus Gray-Weale; Bengt Hallstedt; Andrew Watson
      In the present work, new descriptions of the thermodynamic properties of the Fe–W system were established based on the Calphad approach using the PARROT module of the Thermo-Calc software. For the present work, existing ...
    • Na-Doped Pb(S,Se,Te) CALPHAD Assessment 

      Peters, Matthew; Peters, Matthew (2018-08-02)
      The PbX (X=S,Se,Te) system has been thermodynamically assessed. The individual binaries of the PbX system have been assessed using a two-sublattice model to describe the intrinsic carriers of the system. The 2SL model has ...
    • Ni-Pb-Sb Experimental investigation and thermodynamic prediction 

      Minić, Duško; Manasijević, Dragan; Ćosovic, Vladan; Todorović, Andreja; Dervišević, Irma; Živković, Dragana; Đokić, Jelena (2013-04-01)
      The phase diagram of the ternary Ni–Pb–Sb system was investigated experimentally by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS) methods, and ...
    • NIST Ni-based diffusion mobility database 

      Campbell, Carelyn
      The NIST Ni-based diffusion mobility database was originally constructed for the fcc phase of the Ni–Al–Co–Cr–Hf–Mo–Re–Ta–Ti–W system. Diffusion data in various constituent binary systems were assessed to establish a ...