RESEARCH ON THE SYSTEM BAO-LA2O3-CUO-O .3. LAYERED PEROVSKITES AO. (ABO3)N WITH N=2 AND 3

被引：4

作者：

ABBATTISTA, F

MAZZA, D

VALLINO, M

机构：

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1990年 / 25卷 / 03期

关键词：

D O I：

10.1016/0254-0584(90)90069-M

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the La-Ba-Cu-O system the compositional range of the phase La2-xBa1+xCu2O 6-x 2 Was reexamined at 950 and 1000°C. The results at 950°C confirmed those previously reported by De Leeuw (0.25≤×≤0.8); at 1000°C the mixed crystals field widens reaching the limit composition LaBa2Cu2O 5+δ. In the same system a new phase was evidenced with layered perovskite structure AO.(ABO3)n type with n=3 and composition close to La1.33 Ba2.67 Cu3O7.67+δ (aO=3.956; bO=3.903 and cO=28.744 A). © 1990.

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页码：251 / 257

页数：7

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