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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: ZrAg0.32Al2.68 (AuCu3 structure type, space group Pm3m, a=0.41016(1) nm), ZrAg0.16-0.31Al1.84-1.69 (MgCu2 str. type, sp. gr. Fd3 m, a=0.75147(1)-0.75258(1) nm), Zr6Ag1.30-1.82Al5.70-5.18 (W6Fe7 str. type, sp. gr. R3...
The isothermal section of the phase diagram of the Zr-Cu-Sn system has been constructed at 770 and 670 K. Two new ternary compounds were obtained and their crystal structure was determined. The ZrCuSn stannide crystallized with the TiNiSi structure type (space group Pnma, a=6.6279(1) A, b=4.3679(9) A, c=7.6791(2) A), the ZrCuSn2 structure belongs to the HfCuSi2 structure type (space group P4/nmm,...
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