Study of oxygenation process during the preparation of single domain YBCO bulk superconductors

The oxygenation process is an important step during the preparation of YBCO bulk superconductors by the MTG process. A high pressure oxygenation device has been built by our group. High pressure oxygen has been used in annealing. It is found that different oxygenation processes would lead in the different results. In comparison with the oxygenation process by flowing oxygen, the high pressure oxygenation technique has many more advantages. For example the capacity of the oxygen gas can be saved and the efficiency of oxygenation can be raised greatly.