THE TETRAGONAL PHASE OF GDBA2CU3O7-X

被引：0

作者：

LISOIVAN, VI

YUDANOVA, LI

SHABUROVA, VP

ZAKHARCHUK, NF

PAVLYUK, AA

机构：

来源：

SIBIRSKII KHIMICHESKII ZHURNAL | 1991年 / 04期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Grated mixtures of gadolinium and copper oxides and barium carbonate were annealed for 4h at 850-950-degrees-C. The pressed pellets were annealed then for 24h at 1000-degrees-C and quenched by pulling out the crucible from the furnance and cooling it on a metal support. The elemental analysis of the product gave the formula GdBa1.95Cu3O6.19. The substance received is a single-phase one. The unit cell parameters were refined (a = 3,880(1), c = 11,793(4) angstrom) and the intensities of diffraction lines were measured. The analysis of half-widths K(a)1 of the diffraction lines allowed to establish an inhomogeneity of the tetragonal phase studied. It expressed in broadening of the lines with nonzero indices l.

引用

页码：87 / 90

页数：4

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