The Ln–Ba–Cu–O (Ln = Lanthanoid) systems: Compounds and compatibilities in air at 900–980°C
作者： A. Chodorowicz-b??k , E. Hodorowicz , S. A. Hodorowicz
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摘要: Comparison of phases observed in air at 900-980°C the Ln-Ba-Cu-O (Ln = Lanthanoid) systems is reported. On basis occurrence compounds found these Ln 2 O 3 -BaCO -CuO they must be devided into least three subgroups: first characteristic La, Pr and Nd, second specific for Sm Eu, third common to smaller lanthanoids, Y-type elements, with some variation within groups
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