Material Specification for Y:123; [Y-Ba-Cu-O]
Process: Solid State Reaction
Notes: The authors cite G.A. Emel'chenko et al., Mater. Lett., Vol. 9, 96 (1990), and summarize the procedure as follows. "Single crystals of YBa2Cu3O7-δ were... monocrystalline plates of maximum dimensions 4x3x0.15 mm3, the c-axis being perpendicular to the largest plane of the plate."
Formula: YBa2Cu3O7-x
Informal Name: Y:123
Chemical Family: Y-Ba-Cu-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Diffusion Coefficient for Y:123; [Y-Ba-Cu-O]
| Direction () |
Temperature (°C) |
Diffusion Coefficient (nm2/s) |
Diffusion Coefficient (log10(cm2/s)) |
| ab-plane |
400 |
300 |
-11.5 |
| ab-plane |
800 |
78000 |
-8.1 |
| c-axis |
400 |
0.004 |
-16.4 |
| c-axis |
800 |
6200 |
-10.2 |
Measurement Method: Isotopic exchange
The authors cite J.A. Kilner et al., Solid State Ionics, Vol. 12, 89 (1984), and summarize the procedure as follows. "The isotopic exchange... was carried out in an atmosphere containing 70% O
218, 5% O
216 and 25% N
2. The diffusion profiling of O
16 and O
18 isotopes was performed in a secondary ion mass spectrometer (SIM) Atomika 6500 and the surface ion etching was carried out by 10 keV Xe
+ ions. The diffusion coefficients... and the surface exchange coefficients... of oxygen were determined by fitting..."
Cautions: Evaluated Data
