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1980 (1)
1975 (1)
1Author    Ž. Blažina, Z. BanRequires cookie*
 Title    The Crystal Structures of U2Cu3 AL and UCUA12, and their Relationship with Some Other Phases in the System U-Cu-Al  
 Abstract    X-ray investigations of a great number of samples along the specifically chosen tie-lines in the isothermal sections of the system U-Cu-Al (800 °C) indicated the existence of two new ordered ternary phases, i.e. U2CU3A1 and UCUA12. The first one is hexagonal (S. G. P63/mmc, MgZn2-type), with a = 5.065 ± 0.005 A, c = 8.307 ± 0.005 A and c/a = 1.640. The ordered atomic arrangement of all atoms, as confirmed by trial and error method is consistent with a rather uncommon superstructure of the MgZn2-type. UCUA12 is tetragonal, a = 3.857 ± 0.005 A, c = 8.736 ± 0.005 A, c/a = 2.265, probable space group is I4/mmm, and represents an ordered ternary structure variant of the TiAl3 type. The crystal structures of these two new phases were correlated, in terms of stacking sequences, with those which were identified in this system previously. 
  Reference    Z. Naturforsch. 35b, 1162—1165 (1980); received March 3 1980 
  Published    1980 
  Keywords    Aluminium, Copper, Uranium, Intermetallic Compound 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-1162.pdf 
 Identifier    ZNB-1980-35b-1162 
 Volume    35 
2Author    J. K. Omac, StefanRequires cookie*
 Abstract    The reactions of uranium oxysulphide with selected oxysulphides of rare earths (La, Gd, Yb) and Y were investigated. Several new phases, identified as uranium-rare earth oxysulphides were found. The chemical compositions and lattice constants of those compounds were determined. 
  Reference    (Z. Naturforsch. 30b, 79—80 [1975]; received October 2 1974) 
  Published    1975 
  Keywords    Uranium, Rare Earth Oxysulphides, Chemical Compositions, Lattice Constants 
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 TEI-XML for    default:Reihe_B/30/ZNB-1975-30b-0079.pdf 
 Identifier    ZNB-1975-30b-0079 
 Volume    30