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Early Stage Crystallization Kinetics of Lithium Disilicate and Sodium Silicate Glasses.

DE2004811186

Publication Date	2004
Personal Author	Burgner, L. L.; Weinberg, M. C.; Simmons, J. H.
Page Count	66
Abstract	Crystallization kinetics of glasses remains an active area of inquiry due to its technological and scientific importance. In the realm of technology, knowledge of crystal nucleation and growth rates in glasses at different temperatures is essential for preparing glass-ceramics, where promoting and controlling nucleation and growth of the desired crystal phases in the desired proportions offers a means of tailoring the properties of the final material. Knowledge of crystallization kinetics is also vital for predicting glass stability in applications where crystallization must be avoided, such as optical fibers, where crystal nucleation and growth would degrade the performance of the material. Understanding transformation kinetics is also important for preparing novel glasses with unique properties, for instance, to aid in determining the quench rate necessary to obtain an amorphous form of a given substance, e.g. metallic glasses.
Keywords	Crystallization Kinetics Glass Nucleation Lithium silicates Growth rates Temperature Glass-ceramics Stability Crystal phase transformation Transformation kinetics
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Arizona Univ., Tucson.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200503

Early Stage Crystallization Kinetics of Lithium Disilicate and Sodium Silicate Glasses.

Early Stage Crystallization Kinetics of Lithium Disilicate and Sodium Silicate Glasses.
DE2004811186

Publication Date	2004
Personal Author	Burgner, L. L.; Weinberg, M. C.; Simmons, J. H.
Page Count	66
Abstract	Crystallization kinetics of glasses remains an active area of inquiry due to its technological and scientific importance. In the realm of technology, knowledge of crystal nucleation and growth rates in glasses at different temperatures is essential for preparing glass-ceramics, where promoting and controlling nucleation and growth of the desired crystal phases in the desired proportions offers a means of tailoring the properties of the final material. Knowledge of crystallization kinetics is also vital for predicting glass stability in applications where crystallization must be avoided, such as optical fibers, where crystal nucleation and growth would degrade the performance of the material. Understanding transformation kinetics is also important for preparing novel glasses with unique properties, for instance, to aid in determining the quench rate necessary to obtain an amorphous form of a given substance, e.g. metallic glasses.
Keywords	Crystallization Kinetics Glass Nucleation Lithium silicates Growth rates Temperature Glass-ceramics Stability Crystal phase transformation Transformation kinetics
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Arizona Univ., Tucson.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200503