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Controlled Crystallization of GeSe 2 –Ga 2 Se 3 –CsI Chalcohalide Glasses During Molding
Author(s) -
Yang Zhiyong,
Chen Wei,
Ma Hongli,
Zhang Xianghua
Publication year - 2008
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2008.02471.x
Subject(s) - molding (decorative) , materials science , crystallization , composite material , transmittance , ceramic , mineralogy , chemical engineering , optoelectronics , chemistry , engineering
This is an attempt to produce molded 8–14 μm transmitting glass–ceramics by a one‐step molding technique. Controlled crystallization is expected to be carried out during application of an appropriate molding process to pure glasses. GeSe 2 –Ga 2 Se 3 –CsI chalcohalide glass was used for the attempt, and well‐designed molding parameters were applied to the glass. The results indicate that large quantities of submicrometer crystalline particles are formed and regularly distributed inside the glass matrix during the molding, leading to improved toughness without influencing the 8–14 μm transmittance. This phenomenon implies that it is possible and convenient to produce molded glass–ceramics by a one‐step molding technique.