OXYGEN ABSORPTION KINETICS IN YBA2CU3OX

被引：6

作者：

FAN, ZG

ZHUANG, YX

YANG, G

SHAO, R

ZHANG, GF

机构：

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 200卷

关键词：

D O I：

10.1016/0925-8388(93)90467-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The oxygen absorption process in highly aligned YBa2Cu3Ox samples in air and in pure oxygen was studied at several constant temperatures. The process can be expressed in two steps, a chemical reaction controlled step and a diffusion controlled step. The kinetic equations are as follows respectively: 1-(1-alpha(t))1/2=k(c)t (1-alpha(t)) ln(1-alpha(t)) + alpha(t) = k(D)t The activation energy was calculated using an Arrhenius equation. The technical conditions of heat treatment for oxygen absorption of highly aligned YBa2Cu3Ox crystals are discussed.

引用

页码：33 / 36

页数：4

共 8 条

[1] OXYGEN STOICHIOMETRY IN BA2YCU3OX [J].