Phase equilibria in the {Zr, Hf}-Ag-Al systems at 500°C and crystal structure of the ternary compounds

• Autorzy: Kotur B. Ya. , Verbovytsky Yu. V.
• Konferencja: IX th International Seminar on Physics and Chemistry of Solids, ISPCS ‘03
• Języki publikacji: EN

Abstrakty

EN

The phase equilibria at 500°C in the {Zr, Hf}-Ag-Al systems have been investigated in the whole concentration region. Three ternary compounds were found to occur in each of the systems: ZrAg_0.32Al_2.68 (AuCu₃ structure type, space group Pm3m, a=0.41016(1) nm), ZrAg_0.16-0.31Al_1.84-1.69 (MgCu₂ str. type, sp. gr. Fd3 m, a=0.75147(1)-0.75258(1) nm), Zr₆Ag_1.30-1.82Al_5.70-5.18 (W₆Fe₇ str. type, sp. gr. R3 m, a=0.54017(3)-0.54072(3) nm, c=2.9021(5)-2.9055(3) nm); HfAg_0.28-0.43Al_1.72-1.57 (MgCu₂ str. type, sp. gr. Fd 3 m, a=0.74600(2)-0.74631(3) nm), Hf₆Ag_0.39-1.43Al_6.61-5.57 (W₆Fe₇ str. type, sp. gr. R3 m, a=0.53098(3)-0.53375(3) nm, c=2.9151(2)-2.9086(3) nm), Hf₄Ag_1.10Al_1.90 (Zr₄Al₃str. type, sp. gr. P6, a=0.5332(1) nm, c=0.54279(7) nm). The crystal structure of these aluminides was studied using X-ray powder and single crystal diffraction data.

Słowa kluczowe

EN

phase equilibria; crystal structure; ternary compounds

PL

równowagi fazowe; struktura krystaliczna; związki trójskładnikowe

• Wydawca: Wydawnictwo Wyższej Szkoły Pedagogicznej w Częstochowie
• Czasopismo: Prace Naukowe. Chemia / Wyższa Szkoła Pedagogiczna w Częstochowie
• Rocznik: 2003
• Tom: Vol. 8
• Strony: 7--15
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Kotur B. Ya.

• Department of Inorganic Chemistry, Ivan Franko National University of Lviv, Kyryla and Mefodia Street 6, Lviv 79005, Ukraine

autor

Verbovytsky Yu. V.

• Department of Inorganic Chemistry, Ivan Franko National University of Lviv, Kyryla and Mefodia Street 6, Lviv 79005, Ukraine

Bibliografia

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• [12] Yu. Verbovytsky, VII International seminar on Physics and Chemistry of Solids. Book of Abstracts. 19-21 June, Lviv, 2002, 70.
• [13] L. G. Akselrud, Yu. N. Gryn, V. K. Pecharsky et al., Collected Abstract of XII Europ. Crystallographic Meet. (Moscow. August 20-29, 1989) - M.: USSR Academy of Sciences. 3 (1989) 155.
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