Szczegóły publikacji
Opis bibliograficzny
Diffusion of niobium in yttria-stabilized zirconia and in titania-doped yttria-stabilized zirconia polycrystalline materials / K. KOWALSKI, A. BERNASIK, J. Camra, M. RADECKA, J. JEDLIŃSKI // Journal of the European Ceramic Society ; ISSN 0955-2219. — Tytuł poprz.: International Journal of High Technology Ceramics. — 2006 — vol. 26, s. 3139–3143. — Bibliogr. s. 3143, Abstr.
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 30255 |
|---|---|
| Data dodania do BaDAP | 2006-11-24 |
| DOI | 10.1016/j.jeurceramsoc.2005.10.004 |
| Rok publikacji | 2006 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of the European Ceramic Society |
Abstract
Bulk and grain boundary diffusion of Nb5+ cations in yttria-stabilized zirconia (YSZ, 8 mol% Y2O3-92 mot% ZrO2) and in titania-doped yttria-stabilized zirconia (Ti-YSZ, 5 mol% TiO2-8 mol% Y2O3-87 mol% ZrO2) was studied in air in the temperature range from 900 to 1300 degrees C. Experiments were performed in the B-type kinetic region. Diffusion profiles were determined using the secondary ion mass spectrometry (SIMS). The temperature dependencies of the bulk diffusion coefficient D and the grain boundary diffusion parameter D'delta s for both the materials were calculated. The activation energies of these transport processes in YSZ amounts to 258 and 226 kJ mol(-1), respectively, and 232 and 114 kJ mol(-1) in Ti-YSZ. The results were compared to the diffusion data of other cations previously obtained for the same material. (c) 2005 Elsevier Ltd. All rights reserved.
