Crystallization of Sol-Gel Derived Glasses
A special issue of Crystals (ISSN 2073-4352).
Deadline for manuscript submissions: closed (31 August 2017)
Special Issue Editors
Interests: sol-gel films; photonic materials; photonic crystals; rare-earth luminescence; solid state lighting; frequency conversion; glass structure; glass crystallization
Special Issues, Collections and Topics in MDPI journals
Interests: glass ceramics; photonic materials; glass crystallization; frequency conversion; optical characterization; rare-earth luminescence
Special Issue Information
Dear Colleagues,
Although the crystallization of glass is often a phenomenon to be avoided if spontaneous, a glass may also be made to undergo controlled crystallization. Therefore, the crystallization phenomena and the associated mechanisms, often in the presence of a nucleating agent, assume a critical role. As opposed to the case of bulk melted glasses, there is a lack of detailed studies of the crystallization kinetics of gels, sol–gel derived glasses and glassy films, due in part to experimental difficulties with films which represent the vast majority of sol–gel derived glassy materials prepared, and for which traditional tools such as DTA and DSC are difficult to use. However, these topics are gaining increasing interest, for example in view of developments on transparent nano glass-ceramics, which successfully combine the mechano-chemical stability of an oxide glass matrix with the luminescence properties of lanthanide ions embedded in crystal phases of low phonon energies. Therefore, the crystallization of gels and sol–gel derived glasses is increasingly becoming an active area of research.
The Special Issue on “Crystallization of Sol–Gel Derived Glasses” is intended to provide an international forum for all aspects of sol–gel glass crystallization compared to melted glasses, outlining the experimental techniques which are used.
Prof. Dr. Rui M. Almeida
Prof. Dr. Luís F. Santos
Guest Editors
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Keywords
- Sol–gel glasses
- Glass crystallization
- Crystallization mechanisms
- Nanoglass-ceramics
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