Kinetics of structure formation of YBa2Cu3O7-y

被引：0

作者：

Kofanova, NB ^{[1
]}

Kogan, VA ^{[1
]}

Kupriyanov, MF ^{[1
]}

机构：

[1] Rostov State Univ, Rostov Na Donu 344006, Russia

来源：

JOURNAL OF STRUCTURAL CHEMISTRY | 2001年 / 42卷 / 05期

关键词：

Physical Chemistry; Activation Energy; Inorganic Chemistry; Structure Formation; Effective Activation;

D O I：

10.1023/A:1017929702829

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The kinetics of the synthesis of YBa2CU3O7-y (YBCO) was studied in situ on an X-ray diffractometer using the time vs temperature dependences of the concentration of the phase. The highest rate of YBCO synthesis was observed at 750-780degreesC. The effective activation energy was minimal at 700degreesC, E-a = 20-30 kJ/mole. The structural nonhomogeneity parameters and the dimensions of coherent scattering regions were determined for the YBCO product.

引用

页码：809 / 814

页数：6

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