TY - JOUR
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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U2 - 10.1016/0022-3093(90)90776-I
DO - 10.1016/0022-3093(90)90776-I
M3 - Article
AN - SCOPUS:0025475775
SN - 0022-3093
VL - 123
SP - 90
EP - 96
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 1-3
ER -