DSpace at My University: Recent submissions

Now showing items 421-440 of 445

    • Cu-Pb-Sn Thermodynamic description 

      Docheva, P.; Vassilev, G. (2013-03-29)
      A thermodynamic description of the ternary Cu–Pb–Sn system at the Cu–Pb side is presented. The thermodynamic parameters of the sub-systems, Cu–Pb, Cu–Sn and Pb–Sn, are taken from earlier SGTE-based assessments and those ...

    • 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 ...

    • Cr-Re Ab initio and thermodynamic study 

      Kocer, C.; Murakami, H.; Onodera, H.; Palumbo, M. (2013-03-29)
      In this work the assessment of the Cr–Re system, using a combined ab initio and CALPHAD (CALculation of Phase Diagrams) approach, is presented. To model the sigma phase, a five-sublattice combined CEF model was applied and ...

    • Au, Cu, Pd and Pt alloys Mobilities and diffusivities 

      Du, Y.; Liang, D.; Liu, Yajun; Wang, Jiang; Zhang, L. (2013-03-29)
      Based on the CALPHAD technique, the atomic mobilities and diffusivities in fcc Fe–X (X=Ag, Au, Cu, Pd and Pt) alloys have been critically studied. The thermodynamic descriptions and various types of diffusivities are ...

    • Cr-B-Mo Thermodynamic analysis of phase equilibria 

      Hasebe, M.; Tojo, M.; Tokunaga, T. (2013-03-29)
      A thermodynamic analysis of the phase equilibria in the Cr–Mo–B ternary system has been carried out by combining first-principles calculations with the CALPHAD approach. The thermodynamic descriptions of three binary systems ...

    • C-Mn Thermodynamic assessment 

      Appen, J.; Djurovic, D.; Drownskowski, R.; Hallstedt, B. (2013-03-29)
      The manganese–carbon system has been assessed by means of the CALPHAD method. There is a previous description of this system [W. Huang, Scand. J. Metall., 19 (1990) 26–32], but since then a number of high quality experimental ...

    • 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 ...

    • 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 ...

    • Pd–S Thermodynamic modeling 

      Dogan, O.; Gao, M.; Hu, R.X.; King, P.; Widom, M. (2013-03-29)
      Sulfur poisoning of PdCu membrane alloys has promoted new alloy development that requires quantitative understanding of the thermodynamics of the Pd–Cu–S system. This study attempts to develop a self-consistent thermodynamic ...

    • 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 ...

    • Cu–Pb–Zn Thermodynamic description 

      Gandova, V.; Miettinen, J.; Vassilev, G. (2013-03-29)
      Thermodynamic description of the ternary Cu–Pb–Zn system is presented. The adjustable parameters of the sub-systems, Cu–Pb, Cu–Zn and Pb–Zn, are taken from earlier SGTE-based assessments and those of the ternary system are ...

    • 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 ...

    • RbBr–TbBr3 Thermodynamic investigation 

      Chen, T.F.; Gaune-Escard, M.; Gong, W.P.; Jin, ZhanPeng; Wu, Y. (2013-03-29)
      The thermodynamic properties and phase diagram of the RbBr–TbBr3 system were analyzed by means of the CALPHAD method in this work. Thermodynamic models were defined in order to describe the Gibbs energies of the individual ...

    • Co–Zr Thermodynamic optimization 

      Durga, A.; Kumar, K.C. (2013-03-28)
      The constitutional and thermochemical information of the Co–Zr system is modelled using the Calphad method to obtain a reliable thermodynamic description of the system. Appropriate sublattice models are chosen to describe ...

    • Cr–Ge Thermodynamic description 

      Du, Y.; Liu, Y.Q. (2013-03-28)
      he Cr–Ge binary system was thermodynamically optimized using the CALPHAD method. The liquid phase was described by means of an associate solution model. The BCC terminal solid solution was described by the substitutional ...

    • V–Zn Thermodynamic Assessment by key experiments and first-principles calculations 

      Chang, Keke; Du, Y.; Sun, W.H.; Xu, Honghui; Zhou, L.C. (2013-03-28)
      The V–Zn system was investigated by a combination of CALPHAD modeling with key experiments and first-principles calculations. Based on a critical literature review, one diffusion couple and nine alloys were designed to ...

    • 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 ...

    • Cs–In Thermodynamic Modeling 

      Lee, S.H.; Liu, Z.-K. (2013-03-28)
      Thermodynamic description of the Cs–In system has been developed by the CALPHAD modeling combined with first-principles calculations. The calculated phase diagram of the Cs–In system is compared with the experimental one ...

    • Al-Fe Thermodynamic Assessment 

      Sundman, Bo; Ohnuma, Ikuo; Dupin, Nathalie; Kattner, Ursula R; Fries, Suzana G. (2013-03-28)
      The Al–Fe system is important for many alloys and the new interest in iron aluminides makes it necessary to improve the modeling of the different ordered forms on the body-centered cubic lattice in this system. This has ...

    • Al_Cr_Ni Diffusion Mobilities in Gamma Prime and B2 

      Campbell, C.E. (2013-02-11)
      This work presents the assessment of the diffusion mobilities in both the γ′ (Ni3Al-L12) and B2 (NiAl) phases in the Ni–Al–Cr system utilizing the phenomenological model developed by Helander and Ågren. Available experimental ...