Peculiarities of Components' Interaction in Rare Earth-Transition Metal-Silicon Systems in R(MxSi1-x)2-y Composition Region

• Autorzy: Gladyshevsky E. , Bodak O. I. , Gorelenko Y. K. , Yarovetz V. I.
• Języki publikacji: EN

Abstrakty

EN

The explanation of ternary compounds, forming with AlB2 structure type in the rare earth metal-transition metal-silicon systems, implements on base of analysis of the dependence of the valence-electron concentration versus the kind of the transition metals in their solid solutions in the binary compounds with AlB2, _-ThSi2, and _-GdSi2 structure types appropriate to the rare earth-silicon systems. There is shown that the silicon content (as the electron donor) during formation of the ternary compounds with AlB2 structure type is dependent on the kind of transition metal and this content is decreased in the series of the compounds with Fe, Co, Ni, and Cu consecutively. The experimental data on concentrational intervals of the stability ranges of these ternary compounds are proposed to the qualitative evaluation of the effective valency of the transition metal atoms.

Słowa kluczowe

EN

phase equilibria; intermetallic compounds; ternary systems; silicides; solid solutions

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2001
• Tom: Vol. 75, nr 5
• Strony: 617--622
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Gladyshevsky E.

• Department of Inorganic Chemistry, Ivan Franko L'viv National University, Kyryla and Mefodiya str. 6, 79005, L'viv, Ukraine

autor

Bodak O. I.

• Department of Inorganic Chemistry, Ivan Franko L'viv National University, Kyryla and Mefodiya str. 6, 79005, L'viv, Ukraine

autor

Gorelenko Y. K.

• Department of Inorganic Chemistry, Ivan Franko L'viv National University, Kyryla and Mefodiya str. 6, 79005, L'viv, Ukraine

autor

Yarovetz V. I.

• L'viv State University "L'vivska Polytechnika ", S. Bandera str. 12, 79013. L'viv, Ukraine

Bibliografia

• 1. Bodak O. I. and Gladyshevsky E.I., “Ternary Systems Containing Rare Earth Metals”, Vyshcha shkola, L’viv, 1985, pp. 169-232.
• 2. Akselrud L.G., Investigations on Crystallochemistry of Ternary Uranium Silicides, réf. Diss., L’viv, 1980, pp. 7-9.
• 3. Kotur B.Ya., Litvinko N.Z. and Bodak O.I., DAN UkrSSR, Series B, No 1, 36 (1985).
• 4. Bodak O.I. and Shvetz A.F., Izv, AN USSR, Neorgan. Mater., 19, 1325 (1983).
• 5. Belan B.D., Phase Equilibria, Crystal Structures and Properties of the Compounds in Ternary Eu - {Fe, Co, Ni, Cu} - {Si, Ge} Systems, ref. Diss., L’viv, 1988, pp. 5-6.
• 6. Gladyshevsky E. I., “Crystal Chemistry of Siiicides and Germanides”, Metallurgia, Moscow, 1977, p. 264.
• 7. Nemoshkalenko V.V., in “Electronic Structure and Electronic Properties of Metals and Alioys”, Nauk. Dumka, Kyiv, 1988, pp. 70-88.