Abstract
In view of the contradictoriness of the literature data, phase equilibria in the Ag–Ge–Se system were restudied by differential thermal analysis and X-ray powder diffraction analysis. A number of polythermal sections and an isothermal section at room temperature of the phase diagram were constructed, and so was the projection of the liquidus surface. The primary crystallization fields of phases and the types and coordinates of in- and monovariant equilibria were determined. It was shown that, in the system, a single ternary compound, Ag8GeSe6, forms, which undergoes congruent melting at 1175 K and a polymorphic transformation at 321 K. The formation of the compounds Ag2GeSe3 and Ag8GeSe5, which was previously reported in the literature, was not confirmed. Based on the phase diagrams of boundary binary systems and the results of the differential thermal analysis of a number of samples of the ternary system, equations were obtained for calculation and 3D modeling of the liquidus and phase-separation surfaces.
Similar content being viewed by others
References
L. E. Shelimova, V. N. Tomashik, and V. I. Grytsiv, Phase Diagrams in Semiconductor Materials Science: Systems Based on Chalcogenides of Si, Ge, Sn, and Pb (Nauka, Moscow, 1991) [in Russian].
M. B. Babanly, Yu. A. Yusibov, and V. T. Abishev, Ternary Chalcogenides Based on Copper and Silver (BGU, Baku, 1993) [in Russian].
A. R. West, Solid State Chemistry and Its Applications, 2nd ed. (Wiley, Hoboken, NJ, 2014).
A. K. Ivanov-Shchits and I. V. Murin, Solid-State Ionics (St. Petersburg. Gos. Univ., St. Petersburg, 2000), Vol. 1 [in Russian].
A. Charoenphakdee, K. Kurosaki, H. Muta, et al., Phys. Stat. Solidi (RRL) 2, 65 (2008).
O. Gorochov, Bull. Soc. Chim. Fr. 6, 2263 (1968).
R. Ollitrault-Fitchet, J. Rivet, and J. Flahaut, J. Less-Common Met. 114, 273 (1985).
D. Carré, R. Ollitrault-Fitchet, and J. Flahaut, Acta Crystallogr. 36B, 245 (1980).
Z. Yu. Salaeva, M. R. Allazov, and A. A. Movsumzade, Zh. Neorg. Khim. 30, 1834 (1985).
Z. Yu. Salaeva, A. A. Movsum-zade, and M. R. Allazov, Neorg. Mater. 20, 1467 (1984).
A. A. Movsum-zade, Z. Yu. Salaeva, and M. R. Allazov, Zh. Neorg. Khim. 32, 1705 (1987).
A. G. Mikolaichuk and V. N. Moroz, Zh. Neorg. Khim. 32, 2312 (1987).
A. Velásquez-Velásquez, E. Belandria, B. J. Fernandez, et al., Phys. Stat. Solidi (b) 220, 683 (2000).
A. Prince, Silver–Germanium–Selenium: Ternary Alloys (VCH, Weinheim, Germany, 1988), p. 195–210.
V. M. Glazov, A. S. Burkhanov, and N. M. Saleeva, Izv. Akad. Nauk SSSR, Ser. Neorg. Mater. 13, 917 (1997).
Binary Alloy Phase Diagrams, 2nd ed., Ed. by T. B. Massalski, H. Okamoto, P. R. Subramanian, and L. Kacprzak, (ASM International, Materials Park, Ohio, 1990).
A. N. Mamedov, E. R. Tagiev, L. F. Mashadiyeva, and M. B. Babanly, Int. Res. J. Pure Appl. Chem. 10 (2016). doi 10.9734/IRJPAC/2016/21890
A. N. Mamedov, Z. E. Salimov, L. F. Mashadiyeva, and M. B. Babanly, Am. Chem. Sci. J. 10 (2016). doi 10.9734/ACSJ/2016/21808
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © Yu.A. Yusibov, I.Dzh. Alverdiev, F.S. Ibragimova, A.N. Mamedov, D.B. Tagiev, M.B. Babanly, 2017, published in Zhurnal Neorganicheskoi Khimii, 2017, Vol. 62, No. 9, pp. 1232–1242.
Rights and permissions
About this article
Cite this article
Yusibov, Y.A., Alverdiev, I.D., Ibragimova, F.S. et al. Study and 3D modeling of the phase diagram of the Ag–Ge–Se system. Russ. J. Inorg. Chem. 62, 1223–1233 (2017). https://doi.org/10.1134/S0036023617090182
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0036023617090182