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 |
|---|---|
| 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