Practical limits on up-gradient crystallization

S. J. Kim; D. P. Birnie; B. J.J. Zelinski; D. R. Uhlmann

doi:10.1016/S0022-3093(94)00491-9

Practical limits on up-gradient crystallization

S. J. Kim, D. P. Birnie, B. J.J. Zelinski, D. R. Uhlmann

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10 Scopus citations

Abstract

The kinetic processes relevant to up-gradient crystallization are analyzed in detail. Crystallization occurs upon moving an amorphous sample up through a temperature gradient which is the reverse of traditional crystallization from the melt. Both nucleation and growth processes are important to the present technique. To obtain a highly oriented microstructure, bulk nucleation must be prevented. Generally, a liquid with small nucleation rate and large crystal growth rate is favorable for the present route. The model was tested for the lithium diborate glass system, which yielded a highly oriented microstructure with only isolated additional nucleation events.

Original language	English (US)
Pages (from-to)	291-300
Number of pages	10
Journal	Journal of Non-Crystalline Solids
Volume	181
Issue number	3
DOIs	https://doi.org/10.1016/S0022-3093(94)00491-9
State	Published - Feb 2 1995

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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10.1016/S0022-3093(94)00491-9

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AU - Birnie, D. P.

AU - Zelinski, B. J.J.

AU - Uhlmann, D. R.

PY - 1995/2/2

Y1 - 1995/2/2

N2 - The kinetic processes relevant to up-gradient crystallization are analyzed in detail. Crystallization occurs upon moving an amorphous sample up through a temperature gradient which is the reverse of traditional crystallization from the melt. Both nucleation and growth processes are important to the present technique. To obtain a highly oriented microstructure, bulk nucleation must be prevented. Generally, a liquid with small nucleation rate and large crystal growth rate is favorable for the present route. The model was tested for the lithium diborate glass system, which yielded a highly oriented microstructure with only isolated additional nucleation events.

AB - The kinetic processes relevant to up-gradient crystallization are analyzed in detail. Crystallization occurs upon moving an amorphous sample up through a temperature gradient which is the reverse of traditional crystallization from the melt. Both nucleation and growth processes are important to the present technique. To obtain a highly oriented microstructure, bulk nucleation must be prevented. Generally, a liquid with small nucleation rate and large crystal growth rate is favorable for the present route. The model was tested for the lithium diborate glass system, which yielded a highly oriented microstructure with only isolated additional nucleation events.

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JF - Journal of Non-Crystalline Solids

IS - 3

ER -

Practical limits on up-gradient crystallization

Abstract

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