he Oxygen absorption processes in highly aligned YBaCuO samples in air and in pure oxygen were studied at several constant temperatures. The process can be expressed in two steps: a chemical reaction controlled step and a diffusion controlled step. The kineticequations are as follows, respectively:The activation energy was calculated by using an Arrhenius equation. The technicalconditions of heat treatment for oxygen absorption of highly aligned YBaCuO crystals are discussed.
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[Fan Zhanguo, Zhuang Yanxin, Shan Yuqiao, Shao Rui, Zhang Guofan. Oxygen absorption Process of Zone Melting YBaCuO[J]. Rare Metal Materials and Engineering,1994,(2):25~29.] DOI：[doi]