Abstract
The oxidation kinetics of YBa2Cu3O7-x ceramics has been investigated by the acoustic emission method. It is observed that the oxidation follows an exponential law. For YBCO the exponential index τ is a specific parameter and is equal to 1.7 s±10%. It is confirmed that the related narrow surface layer is first oxidized, and oxygen dissolution in the material is controlled by the speed of volume diffusion.
Original language | English |
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Pages (from-to) | 275-276 |
Number of pages | 2 |
Journal | Journal of Superconductivity |
Volume | 11 |
Issue number | 2 |
DOIs | |
State | Published - 1998 |
Externally published | Yes |
Keywords
- Absorption
- Acoustic emission
- YBCO