Transparent polycrystalline nanoceramics consisting of triclinic Al2 SiO5 kyanite and Al2 O3 corundum

Gaida, Nico A., Nishiyama, Norimasa, Masuno, Atsunobu, Schürmann, Ulrich, Giehl, Christopher, Beermann, Oliver, Ohfuji, Hiroaki, Bednarcik, Jozef, Kulik, Eleonora, Holzheid, Astrid, Irifune, Tetsuo and Kienle, Lorenz (2017) Transparent polycrystalline nanoceramics consisting of triclinic Al2 SiO5 kyanite and Al2 O3 corundum Journal of the American Ceramic Society . DOI 10.1111/jace.15281.

Full text not available from this repository.

Supplementary data:

Abstract

Transparent polycrystalline nanoceramics consisting of triclinic Al2SiO5 kyanite (91.4 vol%) and Al2O3 corundum (8.6 vol%) were fabricated at 10 GPa and 1200-1400°C. These materials were obtained by direct conversion from Al2O3-SiO2 glasses fabricated using the aerodynamic levitation technique. The material obtained at 10 GPa and 1200°C shows the highest optical transparency with a real in-line transmission value of 78% at a wavelength of 645 nm and a sample-thickness of 0.8 mm. This sample shows equigranular texture with an average grain size of 34 ± 13 nm. The optical transparency increases with decreasing mean grain size of the constituent phases. The relationship between real in-line transmission and grain size is well explained by a grain-boundary scattering model based on a classical theory.

Document Type: Article
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
DOI etc.: 10.1111/jace.15281
ISSN: 00027820
Date Deposited: 19 Dec 2017 10:06
Last Modified: 19 Dec 2017 12:48
URI: http://eprints.uni-kiel.de/id/eprint/40864

Actions (login required)

View Item View Item