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
收藏
页码：809 / 814
页数：6
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