A Thermodynamic Study of the Lead-Bismuth System

Computer calculation of the Cd-Bi-Pb-Sn quaternary phase diagram

“…rnm li W ideal gas constant excess integral molar entropy of solution partial molar excess entropy of componenti quaternary composition variables defined by eqs. (12,13) temperature (Kelvin) melting point of i freezing-point depression for componenti mole fraction of component i coefficients of series expansions in eqs (26 -29) activity coefficient of component i solution parameter in eqs (22,23) …”

“…" (12) t2 = XSn/(XPb + (13) [It is also shown in Appendix 1 that there exists a relationship between the integration functions (equation Al). However, this need not concern us at present].…”

“…In the Bi-Pb-Sn ternary system, where Xed == 0, it follows from eqs (12)(13) that: Therefore, if eq (3) is applied to the Bi-Pb-Sn ternary system, it follows that:…”

“…That is, all the integration functions can be calculated from a knowledge of the partial properties of Bi, Pb and Sn in the ternary Bi -Pb -Sn system at the base of the composition tetrahedron. Bi-Pb-Sn quaternary system.Composition variables t1 and tz of equations(12,13) are constant along the dotted line.…”

Electrochemical Cells with the Liquid Electrolyte in the Study of Semiconductor, Metallic and Oxide Systems

“…The first publications devoted to a study of the thermodynamic properties of metallic alloys, using electrochemical cells (EMF method) was known since 1936 year (Strikler & Seltz, 1936). This was the groundwork for all the next studies.…”