Annealing-Induced Off-Stoichiometric and Structural Alterations in Ca(2+)- and Y(3+)-Stabilized Zirconia Ceramics

In the current study, high-temperature stability was investigated in two types of zirconia ceramics stabilized with two different additives, namely, calcia and yttria. The evolutions of structure and oxygen-vacancy-related defects upon annealing in air were investigated as a function of temperature...

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Autores principales: Zhu, Wenliang, Nakashima, Shizuka, Marin, Elia, Gu, Hui, Pezzotti, Giuseppe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8509249/
https://www.ncbi.nlm.nih.gov/pubmed/34639951
http://dx.doi.org/10.3390/ma14195555
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author Zhu, Wenliang
Nakashima, Shizuka
Marin, Elia
Gu, Hui
Pezzotti, Giuseppe
author_facet Zhu, Wenliang
Nakashima, Shizuka
Marin, Elia
Gu, Hui
Pezzotti, Giuseppe
author_sort Zhu, Wenliang
collection PubMed
description In the current study, high-temperature stability was investigated in two types of zirconia ceramics stabilized with two different additives, namely, calcia and yttria. The evolutions of structure and oxygen-vacancy-related defects upon annealing in air were investigated as a function of temperature by combining X-ray diffractometry with Raman, X-ray photoelectron and cathodoluminescence spectroscopies. We systematically characterized variations in the concentration of oxygen vacancies and hydroxyl groups during thermal treatments and linked them to structural alterations and polymorphic transformation. With this approach, we clarified how the combined effects of different dopants and temperature impacted on structural development and on the thermal stability of the oxygen-vacancy-related defect complex.
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spelling pubmed-85092492021-10-13 Annealing-Induced Off-Stoichiometric and Structural Alterations in Ca(2+)- and Y(3+)-Stabilized Zirconia Ceramics Zhu, Wenliang Nakashima, Shizuka Marin, Elia Gu, Hui Pezzotti, Giuseppe Materials (Basel) Article In the current study, high-temperature stability was investigated in two types of zirconia ceramics stabilized with two different additives, namely, calcia and yttria. The evolutions of structure and oxygen-vacancy-related defects upon annealing in air were investigated as a function of temperature by combining X-ray diffractometry with Raman, X-ray photoelectron and cathodoluminescence spectroscopies. We systematically characterized variations in the concentration of oxygen vacancies and hydroxyl groups during thermal treatments and linked them to structural alterations and polymorphic transformation. With this approach, we clarified how the combined effects of different dopants and temperature impacted on structural development and on the thermal stability of the oxygen-vacancy-related defect complex. MDPI 2021-09-24 /pmc/articles/PMC8509249/ /pubmed/34639951 http://dx.doi.org/10.3390/ma14195555 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhu, Wenliang
Nakashima, Shizuka
Marin, Elia
Gu, Hui
Pezzotti, Giuseppe
Annealing-Induced Off-Stoichiometric and Structural Alterations in Ca(2+)- and Y(3+)-Stabilized Zirconia Ceramics
title Annealing-Induced Off-Stoichiometric and Structural Alterations in Ca(2+)- and Y(3+)-Stabilized Zirconia Ceramics
title_full Annealing-Induced Off-Stoichiometric and Structural Alterations in Ca(2+)- and Y(3+)-Stabilized Zirconia Ceramics
title_fullStr Annealing-Induced Off-Stoichiometric and Structural Alterations in Ca(2+)- and Y(3+)-Stabilized Zirconia Ceramics
title_full_unstemmed Annealing-Induced Off-Stoichiometric and Structural Alterations in Ca(2+)- and Y(3+)-Stabilized Zirconia Ceramics
title_short Annealing-Induced Off-Stoichiometric and Structural Alterations in Ca(2+)- and Y(3+)-Stabilized Zirconia Ceramics
title_sort annealing-induced off-stoichiometric and structural alterations in ca(2+)- and y(3+)-stabilized zirconia ceramics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8509249/
https://www.ncbi.nlm.nih.gov/pubmed/34639951
http://dx.doi.org/10.3390/ma14195555
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AT nakashimashizuka annealinginducedoffstoichiometricandstructuralalterationsinca2andy3stabilizedzirconiaceramics
AT marinelia annealinginducedoffstoichiometricandstructuralalterationsinca2andy3stabilizedzirconiaceramics
AT guhui annealinginducedoffstoichiometricandstructuralalterationsinca2andy3stabilizedzirconiaceramics
AT pezzottigiuseppe annealinginducedoffstoichiometricandstructuralalterationsinca2andy3stabilizedzirconiaceramics

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