Electrical properties of ZrO₂ in nano- and polycrystalline states at high pressure
We present the results of the research work devoted to the problem: how the crystallites influence the electrical properties of stabilized zirconia at pressures of 22−50 GPa and in the temperature range of 77−450 K. The measurements were conducted in the highpressure chamber under direct current on...
Gespeichert in:
| Datum: | 2007 |
|---|---|
| Hauptverfasser: | , , , , , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України
2007
|
| Schriftenreihe: | Физика и техника высоких давлений |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/70292 |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Electrical properties of ZrO₂ in nano- and polycrystalline states at high pressure / I.V. Korionov, A.N. Trefilova, A.N. Babushkin, I.G. Korionova, U.N. Shumina, W. Lojkowski, A. Opalinska // Физика и техника высоких давлений. — 2007. — Т. 17, № 1. — С. 70-73. — Бібліогр.: 3 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | We present the results of the research work devoted to the problem: how the crystallites influence the electrical properties of stabilized zirconia at pressures of 22−50 GPa and in the temperature range of 77−450 K. The measurements were conducted in the highpressure chamber under direct current on nanocrystalline powders of ZrO₂ stabilized by Pr (0.5%) and on compact powder samples of «partially stabilized» ZrO₂ including 5% Y₃P₃. The nanocrystallite size equals 10, 12 and 56 nm. The change of electronic properties of stabilized zirconia at 31.5–37.5 GPa, 40–44 GPa and 45.5–48.5 GPa in nano- and polycrystalline states has been discovered. It gives us a possibility to verify the phase diagram of ZrO₂ at those intervals of pressure. Besides, it has been revealed that stabilization as nanocrystallinity leads to appearance of additional mechanisms of conductivity in ZrO₂. |
|---|