• thermodynamic assessment of the in-ni-sb system and predictions for thermally stable contacts to insb

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 867
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     thermodynamic assessment of the in-ni-sb ternary system has been performed using the calphad technique. the phases ζ(ni2in) and ζ(nisb) with the same b8-type structure in the subbinary systems are modified using the same three-sublattice model: (ni,va)1/3(ni,va)1/3(ni,x)1/3(x = in, sb), in order to give the continuous solid solution phase ζ in the in-ni-sb ternary system a better description. this modification is also made to the gibbs free energy expression of the insb phase. the parameters of the thermodynamic descriptions of the in-ni-sb ternary system are optimized on the basis of the three modified subbinary systems. a set of self-consistent thermodynamic parameters of the in-ni-sb system is obtained according to five isothermal sections and three vertical sections. most of the experimental data can be satisfactorily reproduced by the present parameters. the liquidus projection and the invariant reactions are also presented. by simply considering the standards of melting temperature and thermodynamic stability, part of the ζ-phase is more suitable as a contact material to insb semiconductor.

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