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The influence of choice of the activity functions on possibility of intermetallic compounds identification in metal solutions

100%

Gargul K. , Sukiennik M. , Jarosz P. , Gierlotka W.

tom R. XXII, nr 4

330-331

In this work the identification procedure of intermetallic compounds forming in liquid metallic solutions is presented. Bhatia and Thornton proposal was used; calculations were made on the base of mercury-indium system. Experimental data were described by Pelton polynomials and Krupkowski equations. Executed calculations show the insufficient tenderness of used functions, the course of examined parameters Scc(0) and delta Scc(0) indicates no intermetallic compounds in this system. It is suggested to describe experimental data more subtle methods such spline line functions in the case of this type of systems, with greater number of intermetallic compounds.

Description of experimental data in thermodynamics analysis of binary solutions.

100%

Jarosz P. , Sukiennik M. , Gargul K. , Gierlotka W.

tom R. XXII, nr 4

392-393

In this work one analysed influence of manner of description of experimental data on counted values of thermodynamical function in binary solution. One ascertained, that large meanings in widened thermodynamical analysis of binary solutions has acquaintance of structural coefficients. It is possible to obtain the reliable results from phase diagram only using interpolation methods. One showed on the ground of thermodynamical analysis of solution Hg-In, that description of activity with functions cubic spline permits on qualification stochiometrics of intermetallic compounds.