Nitrogen diffusion in nitrogen-doped yttria stabilised zirconia

Nitrogen self-diffusion was measured in single crystalline nitrogen-doped yttria-stabilised zirconia (YZrON) containing 10 mol% yttrium oxide. Samples containing two different nitrogen contents (5 and 6 mol% N on the anion sublattice) were investigated as a function of temperature (650–1000 K) using...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Kilo, Martin, Taylor, Marcela Andrea, Argirusis, Christos, Borchardt, Günter, Lerch, Martin, Kaïtasov, Odile, Lesage, Bernard
Formato: Articulo
Lenguaje:Inglés
Publicado: 2004
Materias:
Astronomía
Física
Ciencias Exactas
Nitrogen diffusion
Sims
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/97644
https://ri.conicet.gov.ar/11336/74366
https://pubs.rsc.org/en/Content/ArticleLanding/2004/CP/B315123A#!divAbstract
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-97644
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Física
Ciencias Exactas
Nitrogen diffusion
Sims
spellingShingle Astronomía
Física
Ciencias Exactas
Nitrogen diffusion
Sims
Kilo, Martin
Taylor, Marcela Andrea
Argirusis, Christos
Borchardt, Günter
Lerch, Martin
Kaïtasov, Odile
Lesage, Bernard
Nitrogen diffusion in nitrogen-doped yttria stabilised zirconia
topic_facet Astronomía
Física
Ciencias Exactas
Nitrogen diffusion
Sims
description Nitrogen self-diffusion was measured in single crystalline nitrogen-doped yttria-stabilised zirconia (YZrON) containing 10 mol% yttrium oxide. Samples containing two different nitrogen contents (5 and 6 mol% N on the anion sublattice) were investigated as a function of temperature (650–1000 K) using implanted <sup>15</sup>N as a stable tracer. For a given temperature, the nitrogen diffusivity was nearly independent of the nitrogen content in the nitrogen-doped yttria-stabilised zirconia, which can be only partially understood using defect chemistry. The activation enthalpy of nitrogen diffusion was between 2 and 2.5 eV with a preexponential factor of the order of 10<sup>0</sup> cm<sup>2</sup> s<sup>−1</sup>, which corresponds to a migration entropy of 5 k<sub>B</sub>. The surface exchange reaction between nitrogen and the oxonitride surface was investigated at 1073 K using 200 mbar gaseous <sup>15</sup>N<sub>2</sub> and was found to be slow but considerable. Decreasing the oxygen content in the gas phase can enhance the nitrogen incorporation into the oxonitrides.
format Articulo
Articulo
author Kilo, Martin
Taylor, Marcela Andrea
Argirusis, Christos
Borchardt, Günter
Lerch, Martin
Kaïtasov, Odile
Lesage, Bernard
author_facet Kilo, Martin
Taylor, Marcela Andrea
Argirusis, Christos
Borchardt, Günter
Lerch, Martin
Kaïtasov, Odile
Lesage, Bernard
author_sort Kilo, Martin
title Nitrogen diffusion in nitrogen-doped yttria stabilised zirconia
title_short Nitrogen diffusion in nitrogen-doped yttria stabilised zirconia
title_full Nitrogen diffusion in nitrogen-doped yttria stabilised zirconia
title_fullStr Nitrogen diffusion in nitrogen-doped yttria stabilised zirconia
title_full_unstemmed Nitrogen diffusion in nitrogen-doped yttria stabilised zirconia
title_sort nitrogen diffusion in nitrogen-doped yttria stabilised zirconia
publishDate 2004
url http://sedici.unlp.edu.ar/handle/10915/97644
https://ri.conicet.gov.ar/11336/74366
https://pubs.rsc.org/en/Content/ArticleLanding/2004/CP/B315123A#!divAbstract
work_keys_str_mv AT kilomartin nitrogendiffusioninnitrogendopedyttriastabilisedzirconia
AT taylormarcelaandrea nitrogendiffusioninnitrogendopedyttriastabilisedzirconia
AT argirusischristos nitrogendiffusioninnitrogendopedyttriastabilisedzirconia
AT borchardtgunter nitrogendiffusioninnitrogendopedyttriastabilisedzirconia
AT lerchmartin nitrogendiffusioninnitrogendopedyttriastabilisedzirconia
AT kaitasovodile nitrogendiffusioninnitrogendopedyttriastabilisedzirconia
AT lesagebernard nitrogendiffusioninnitrogendopedyttriastabilisedzirconia
bdutipo_str Repositorios
_version_ 1764820492240289796

Ejemplares similares