H/D Isotope Effect in the Conductivity of CaZr1 – xScxO3 – α in Reducing Atmospheres
The ionic (proton and deuteron) conductivity of the system CaZr 1 – x Sc x O 3 – α ( x = 0.03–0.20) is studied experimentally in H 2 + H 2 O + N 2 and D 2 + D 2 O + N 2 reducing atmospheres at p H 2 O = p D 2 O = 3.2 kPa and in the temperature range of 600–900°C. This system exhibits a considerabl...
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| Veröffentlicht in: | Physics of the solid state 2018-12, Vol.60 (12), p.2418-2423 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The ionic (proton and deuteron) conductivity of the system CaZr
1 –
x
Sc
x
O
3 – α
(
x
= 0.03–0.20) is studied experimentally in H
2
+ H
2
O + N
2
and D
2
+ D
2
O + N
2
reducing atmospheres at
p
H
2
O =
p
D
2
O = 3.2 kPa and in the temperature range of 600–900°C. This system exhibits a considerable H/D isotopic effect in conductivity, and its magnitude is estimated. Using theoretical elaborations, we also estimate the magnitude of the thermodynamic isotope effect in the solubility of H
2
O/D
2
O in the considered system under reducing conditions. |
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| ISSN: | 1063-7834 1090-6460 |
| DOI: | 10.1134/S1063783418120132 |