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Title: Transparency through Structural Disorder: A New Concept for Innovative Transparent Ceramics

Abstract

Transparent polycrystalline ceramics present signi fi cant eco- nomical and functional advantages over single crystal materials for optical, communication, and laser technologies. To date, transparency in these ceramics is ensured either by an optical isotropy (i.e., cubic symmetry) or a nanometric crystallite size, and the main challenge remains to eliminate porosity through complex high pressure - high temperature synthesis. Here we introduce a new concept to achieve ultimate transparency reaching the theoretical limit. We use a controlled degree of chemical disorder in the structure to obtain optical isotropy at the micrometer length scale. This approach can be applied in the case of anisotropic structures and micrometer scale crystal size ceramics. We thus report Sr 1+ x /2 Al 2+ x Si 2 - x O 8 (0 < x ≤ 0.4) readily scalable polycrystalline ceramics elaborated by full and congruent crystallization from glass. These materials reach 90% transmittance. This innovative method should drive the development of new highly transparent materials with technologically relevant applications.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division; Centre National de la Recherche Scientifique (CNRS)
OSTI Identifier:
1392105
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Chemistry of Materials; Journal Volume: 27; Journal Issue: 2
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Al Saghir, Kholoud, Chenu, Sébastien, Veron, Emmanuel, Fayon, Franck, Suchomel, Matthew, Genevois, Cécile, Porcher, Florence, Matzen, Guy, Massiot, Dominique, and Allix, Mathieu. Transparency through Structural Disorder: A New Concept for Innovative Transparent Ceramics. United States: N. p., 2015. Web. doi:10.1021/cm5037106.
Al Saghir, Kholoud, Chenu, Sébastien, Veron, Emmanuel, Fayon, Franck, Suchomel, Matthew, Genevois, Cécile, Porcher, Florence, Matzen, Guy, Massiot, Dominique, & Allix, Mathieu. Transparency through Structural Disorder: A New Concept for Innovative Transparent Ceramics. United States. doi:10.1021/cm5037106.
Al Saghir, Kholoud, Chenu, Sébastien, Veron, Emmanuel, Fayon, Franck, Suchomel, Matthew, Genevois, Cécile, Porcher, Florence, Matzen, Guy, Massiot, Dominique, and Allix, Mathieu. Tue . "Transparency through Structural Disorder: A New Concept for Innovative Transparent Ceramics". United States. doi:10.1021/cm5037106.
@article{osti_1392105,
title = {Transparency through Structural Disorder: A New Concept for Innovative Transparent Ceramics},
author = {Al Saghir, Kholoud and Chenu, Sébastien and Veron, Emmanuel and Fayon, Franck and Suchomel, Matthew and Genevois, Cécile and Porcher, Florence and Matzen, Guy and Massiot, Dominique and Allix, Mathieu},
abstractNote = {Transparent polycrystalline ceramics present signi fi cant eco- nomical and functional advantages over single crystal materials for optical, communication, and laser technologies. To date, transparency in these ceramics is ensured either by an optical isotropy (i.e., cubic symmetry) or a nanometric crystallite size, and the main challenge remains to eliminate porosity through complex high pressure - high temperature synthesis. Here we introduce a new concept to achieve ultimate transparency reaching the theoretical limit. We use a controlled degree of chemical disorder in the structure to obtain optical isotropy at the micrometer length scale. This approach can be applied in the case of anisotropic structures and micrometer scale crystal size ceramics. We thus report Sr 1+ x /2 Al 2+ x Si 2 - x O 8 (0 < x ≤ 0.4) readily scalable polycrystalline ceramics elaborated by full and congruent crystallization from glass. These materials reach 90% transmittance. This innovative method should drive the development of new highly transparent materials with technologically relevant applications.},
doi = {10.1021/cm5037106},
journal = {Chemistry of Materials},
number = 2,
volume = 27,
place = {United States},
year = {Tue Jan 27 00:00:00 EST 2015},
month = {Tue Jan 27 00:00:00 EST 2015}
}