Influence of Cu2O Addition on Crystallization Process and Microstructure of Transparent Mica Glass-Ceramics

Seiichi Taruta; Keigo Sakai; Tomohiko Yamakami; Tomohiro Yamaguchi

doi:10.4028/www.scientific.net/KEM.617.209

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 617Influence of Cu2O Addition on Crystallization...

Influence of Cu₂O Addition on Crystallization Process and Microstructure of Transparent Mica Glass-Ceramics

Abstract:

The influence of Cu₂O addition on crystallization process and microstructure of the transparent mica glass-ceramics was investigated. Cu⁺ ions which were added as Cu₂O were oxidized to Cu²⁺ ions during preparation of parent glasses and the Cu²⁺ ions were reduced to Cu⁺ ions again during heating of the parent glasses. By heating the parent glasses to which 10-20 mol% Cu₂O was added at 650-700°C, not only nanosized micas but also Cu₂O nanoparticles separeted. Their separation temperatures were lowered as the additive amount of Cu₂O increased. Micas separated at 750°C should contain Cu⁺ and Cu²⁺ ions in the structure. Metallic Cu was observed only in the specimen to which 1 mol% Cu₂O was added.

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Periodical:

Key Engineering Materials (Volume 617)

Pages:

209-212

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.617.209

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Online since:

June 2014

Authors:

Seiichi Taruta*, Keigo Sakai, Tomohiko Yamakami, Tomohiro Yamaguchi

Keywords:

Copper Oxides, Glass-Ceramics, Layered Silicate Compound, Transparency

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