Increasing Fracture Toughness and Transmittance of Transparent Ceramics using Functional Low-Thermal Expansion Coatings

Transparent polycrystalline ceramics have the potential to enable applications no other materials can, but to do so their strength and toughness must be improved. However, surface strengthening treatments like those used for glasses have so far remained elusive. Here for the first time, we report on...

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Autores principales: du Merac, Marc Rubat, Bram, Martin, Malzbender, Jürgen, Ziegner, Mirko, Rasinski, Marcin, Guillon, Olivier
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6199310/
https://www.ncbi.nlm.nih.gov/pubmed/30353101
http://dx.doi.org/10.1038/s41598-018-33919-5
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author du Merac, Marc Rubat
Bram, Martin
Malzbender, Jürgen
Ziegner, Mirko
Rasinski, Marcin
Guillon, Olivier
author_facet du Merac, Marc Rubat
Bram, Martin
Malzbender, Jürgen
Ziegner, Mirko
Rasinski, Marcin
Guillon, Olivier
author_sort du Merac, Marc Rubat
collection PubMed
description Transparent polycrystalline ceramics have the potential to enable applications no other materials can, but to do so their strength and toughness must be improved. However, surface strengthening treatments like those used for glasses have so far remained elusive. Here for the first time, we report on engineering unprecedented surface compression, of the magnitude achieved for ion-exchange strengthened glasses (~750 MPa) in transparent ceramics. This was achieved by applying functional, low thermal-expansion yttria coatings onto yttria-stabilized zirconia substrates and thermally treating. In some instances, the treatment more than doubled the fracture toughness while simultaneously increasing light transmittance.
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spelling pubmed-61993102018-10-25 Increasing Fracture Toughness and Transmittance of Transparent Ceramics using Functional Low-Thermal Expansion Coatings du Merac, Marc Rubat Bram, Martin Malzbender, Jürgen Ziegner, Mirko Rasinski, Marcin Guillon, Olivier Sci Rep Article Transparent polycrystalline ceramics have the potential to enable applications no other materials can, but to do so their strength and toughness must be improved. However, surface strengthening treatments like those used for glasses have so far remained elusive. Here for the first time, we report on engineering unprecedented surface compression, of the magnitude achieved for ion-exchange strengthened glasses (~750 MPa) in transparent ceramics. This was achieved by applying functional, low thermal-expansion yttria coatings onto yttria-stabilized zirconia substrates and thermally treating. In some instances, the treatment more than doubled the fracture toughness while simultaneously increasing light transmittance. Nature Publishing Group UK 2018-10-23 /pmc/articles/PMC6199310/ /pubmed/30353101 http://dx.doi.org/10.1038/s41598-018-33919-5 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
du Merac, Marc Rubat
Bram, Martin
Malzbender, Jürgen
Ziegner, Mirko
Rasinski, Marcin
Guillon, Olivier
Increasing Fracture Toughness and Transmittance of Transparent Ceramics using Functional Low-Thermal Expansion Coatings
title Increasing Fracture Toughness and Transmittance of Transparent Ceramics using Functional Low-Thermal Expansion Coatings
title_full Increasing Fracture Toughness and Transmittance of Transparent Ceramics using Functional Low-Thermal Expansion Coatings
title_fullStr Increasing Fracture Toughness and Transmittance of Transparent Ceramics using Functional Low-Thermal Expansion Coatings
title_full_unstemmed Increasing Fracture Toughness and Transmittance of Transparent Ceramics using Functional Low-Thermal Expansion Coatings
title_short Increasing Fracture Toughness and Transmittance of Transparent Ceramics using Functional Low-Thermal Expansion Coatings
title_sort increasing fracture toughness and transmittance of transparent ceramics using functional low-thermal expansion coatings
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6199310/
https://www.ncbi.nlm.nih.gov/pubmed/30353101
http://dx.doi.org/10.1038/s41598-018-33919-5
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