| Autor: |
Kulikov, G. S., Malkovich, R. Sh., Skoryatina, E. A., Usacheva, V. P. |
| Předmět: |
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| Zdroj: |
Technical Physics Letters; May2002, Vol. 28 Issue 5, p427, 3p |
| Abstrakt: |
The process of zinc diffusion in YBa[sub 2]Cu[sub 3]O[sub 7 - x] ceramics with a porosity of 20-30% was studied in the temperature interval from 110 to 450°C using a [sup 65]Zn radioactive tracer. The temperature dependence of the tracer diffusion coefficient is described by the relation D = 5 × 10[sup -9]exp(-0.25 eV/kT) cm²/s. It is concluded that zinc migrates predominantly via pores and intergranular layers in the ceramics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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