Abstract
The enthalpies of mixing in liquid Ag – Ca, Ag – Eu and Ag – Yb alloys were measured by isoperibolic calorimetry at 1300 K. The experimental data were used to calculate the mixing enthalpies within the total composition region. The results of the investigation show exothermic effect of alloy formation. The minimum integral enthalpies of mixing are – 23.5 ± 1.0 kJ · mol – 1 (the Ag – Ca system); –16.5 ± 1.5 kJ · mol – 1 (the Ag – Eu system) and – 21.5 ± 1.9 kJ · mol – 1 (the Ag – Yb system) and are located in the silver-rich composition regions.
References
[1] M.I.Ivanov, N.I.Usenko, V.T.Witusiewicz: J. Alloys Comp.302 (2000) L17–L18.10.1016/S0925-8388(00)00689-7Search in Google Scholar
[2] M.I.Ivanov, V.T.Witusiewicz: J. Alloys Comp.186 (1992) 255–266.10.1016/0925-8388(92)90012-XSearch in Google Scholar
[3] M.I.Ivanov, V.T.Witusiewicz: Ukrain. J. Chem.56 (1990) 549–551.Search in Google Scholar
[4] H.Fischbach: J. Less-Common Met.108 (1985) 151–162.10.1016/0022-5088(85)90439-4Search in Google Scholar
[5] J.Snyder, A.Simon: J. Alloys Comp.223 (1995) 65–66.10.1016/0925-8388(94)01485-XSearch in Google Scholar
[6] J.Delcet, J.J.Egan: J. Less-Common Met.59 (1978) 229–236.10.1016/0022-5088(78)90132-7Search in Google Scholar
[7] M.Notin, J.Mejbar, A.Bouhajib, J.Charles, J.Hertz: J. Alloys Comp.220 (1995) 62–75.10.1016/0925-8388(94)06001-0Search in Google Scholar
[8] N.I.Usenko, M.I.Ivanov, V.M.Petiuh, V.T.Witusiewicz: J. Alloys Comp.190 (1993) 149–155.10.1016/0925-8388(93)90391-YSearch in Google Scholar
[9] I.V.Nikolaenko: J. Alloys Comp.225 (1995) 474–479.10.1016/0925-8388(94)07076-8Search in Google Scholar
[10] R.Hultgren, P.D.Desai, T.D.Hawkins, M.Gleiser, K.K.Kelley, D.D.Wagman: Selected Values of the Thermodynamic Properties of the Elements. ASM International, Metals Park, OH, (1973).Search in Google Scholar
[11] C.B.Alcock, V.P.Itkin, M.K.Horrigan: Canad. Metall. Quart.23 (1984) 309–315.10.1179/cmq.1984.23.3.309Search in Google Scholar
[12] M.C.Day, Jr., J.Selbin: Theoretical Inorganic Chemistry, Reinhold, New-York, 1969.Search in Google Scholar
[13] T.B.Massalski (Ed.): Binary Alloy Phase Diagrams, 1-st (Ed.), ASM International, Metals Park, OH (1986).Search in Google Scholar
[14] Y.Liu, J.Kiong: J. Alloys Comp.407 (2006) 74–77.10.1016/S0925-8388(04)01363-5Search in Google Scholar
[15] M.I.Ivanov, G.M.Lukashenko: J. Less-Com. Met.133 (1987) 181–192.10.1016/0022-5088(87)90227-XSearch in Google Scholar
[16] L.Brewer, in: P.A.Beck (Ed.), Electronic Structure and Alloy Chemistry of the Transition Elements, Wiley Interscience, N.Y. and L. (1963).Search in Google Scholar
[17] K.A.Gschneidner, Jr.: J. Less-Com. Met.25 (1971) 405–422.10.1016/0022-5088(71)90184-6Search in Google Scholar
[18] R.Boom, F.R.De Boer, A.R.Miedema: J. Less-Com. Met.46 (1976) 271.Search in Google Scholar
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