Critical cooling rate calculations for glass formation

Michael C. Weinberg; Brian J. Zelinski; D. R. Uhlmann; Edgar D. Zanotto

doi:10.1016/0022-3093(90)90776-I

Critical cooling rate calculations for glass formation

Michael C. Weinberg, Brian J. Zelinski, D. R. Uhlmann, Edgar D. Zanotto

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33 Scopus citations

Abstract

An assessment is made of the various factors which are involved in the calculation of critical cooling rates for glass formation. In particular, attention is focused upon the sensitivity of computed critical cooling rates R_c to various approximations and uncertainties in physical parameter data. SiO₂ and GeO₂ are chosen as model systems to illustrate the major features. It is shown that R_c is rather insensitive to the mode of computation of the volume fraction crystallized, but is quite dddependent upon the material parameters which enter into the nucleation and crystal growth expressions.

Original language	English (US)
Pages (from-to)	90-96
Number of pages	7
Journal	Journal of Non-Crystalline Solids
Volume	123
Issue number	1-3
DOIs	https://doi.org/10.1016/0022-3093(90)90776-I
State	Published - Aug 2 1990

ASJC Scopus subject areas

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

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10.1016/0022-3093(90)90776-I

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title = "Critical cooling rate calculations for glass formation",

abstract = "An assessment is made of the various factors which are involved in the calculation of critical cooling rates for glass formation. In particular, attention is focused upon the sensitivity of computed critical cooling rates Rc to various approximations and uncertainties in physical parameter data. SiO2 and GeO2 are chosen as model systems to illustrate the major features. It is shown that Rc is rather insensitive to the mode of computation of the volume fraction crystallized, but is quite dddependent upon the material parameters which enter into the nucleation and crystal growth expressions.",

author = "Weinberg, {Michael C.} and Zelinski, {Brian J.} and Uhlmann, {D. R.} and Zanotto, {Edgar D.}",

note = "Funding Information: The authors wish to express their gratitude to the Jet Propulsion Laboratory, the Division of Microgravity Science and Applications of NASA, and the Air Force Office of Scientific Research for the financial support of this work. One of the authors (E.D.Z.) also acknowledges Capes/ Fulbright for a fellowship support.",

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doi = "10.1016/0022-3093(90)90776-I",

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T1 - Critical cooling rate calculations for glass formation

AU - Weinberg, Michael C.

AU - Zelinski, Brian J.

AU - Uhlmann, D. R.

AU - Zanotto, Edgar D.

N1 - Funding Information: The authors wish to express their gratitude to the Jet Propulsion Laboratory, the Division of Microgravity Science and Applications of NASA, and the Air Force Office of Scientific Research for the financial support of this work. One of the authors (E.D.Z.) also acknowledges Capes/ Fulbright for a fellowship support.

PY - 1990/8/2

Y1 - 1990/8/2

N2 - An assessment is made of the various factors which are involved in the calculation of critical cooling rates for glass formation. In particular, attention is focused upon the sensitivity of computed critical cooling rates Rc to various approximations and uncertainties in physical parameter data. SiO2 and GeO2 are chosen as model systems to illustrate the major features. It is shown that Rc is rather insensitive to the mode of computation of the volume fraction crystallized, but is quite dddependent upon the material parameters which enter into the nucleation and crystal growth expressions.

AB - An assessment is made of the various factors which are involved in the calculation of critical cooling rates for glass formation. In particular, attention is focused upon the sensitivity of computed critical cooling rates Rc to various approximations and uncertainties in physical parameter data. SiO2 and GeO2 are chosen as model systems to illustrate the major features. It is shown that Rc is rather insensitive to the mode of computation of the volume fraction crystallized, but is quite dddependent upon the material parameters which enter into the nucleation and crystal growth expressions.

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Critical cooling rate calculations for glass formation

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