Evidence of excess oxygen accommodation in yttria partially-stabilized zirconia
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
Fersiynau electronig
Dogfennau
- 2019-Evidence of excess oxygen
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Dangosydd eitem ddigidol (DOI)
ttria partially stabilized zirconia (ZrO2)x(Y2O3)½-x has been investigated to understand accommodation of excess oxygen into its structure. ZrO2 powder with 8 wt% Y2O3 additions was treated in 30 vol% H2O2 solution to promote oxidation of the material. A new Raman peak was observed after treatment at 840 cm−1, consistent with previous reports of solid state peroxide ions (O22−). This was corroborated using atomic scale simulation based on density functional theory; these also highlighted the near-zero solution enthalpy for excess oxygen in the monoclinic structure via the formation of a peroxide ion defect.
| Iaith wreiddiol | Saesneg |
|---|---|
| Tudalennau (o-i) | 7-10 |
| Cyfnodolyn | Scripta Materialia |
| Cyfrol | 175 |
| Dyddiad ar-lein cynnar | 10 Medi 2019 |
| Dynodwyr Gwrthrych Digidol (DOIs) | |
| Statws | Cyhoeddwyd - 15 Ion 2020 |
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