TY - JOUR
T1 - Nucleation, crystallization and glass formation
AU - Uhlmann, D. R.
N1 - Funding Information:
The author wishes to express appreciation to Drs. P.I.K. Onorato of GTE Laboratories and Dr. R. W. Hopper of Lawrence Livermore Laboratories who carried out much of the work described in the paper. Financial support for the present work was provided by the National Science Foundation. This support is gratefully acknowledged.
PY - 1980
Y1 - 1980
N2 - The kinetic treatment of glass formation has been extended to describe crystallization on reheating a glass and to estimate critical cooling rates for glass formation from three measurable quantities, Tg, TL and the heat of fusion. The crystallization temperature on reheating a glass is found to depend strongly on the heating rate and on the barrier to crystal nucleation, and only weakly on the cooling rate used to form the glass. The analysis indicates that simple DTA analyses can be used to estimate the magnitudes of the nucleation barriers of various materials. The simplified treatment of glass formation gives predictions which agree within about an order of magnitude with those obtained using the full detailed kinetic analysis.
AB - The kinetic treatment of glass formation has been extended to describe crystallization on reheating a glass and to estimate critical cooling rates for glass formation from three measurable quantities, Tg, TL and the heat of fusion. The crystallization temperature on reheating a glass is found to depend strongly on the heating rate and on the barrier to crystal nucleation, and only weakly on the cooling rate used to form the glass. The analysis indicates that simple DTA analyses can be used to estimate the magnitudes of the nucleation barriers of various materials. The simplified treatment of glass formation gives predictions which agree within about an order of magnitude with those obtained using the full detailed kinetic analysis.
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U2 - 10.1016/0022-3093(80)90517-7
DO - 10.1016/0022-3093(80)90517-7
M3 - Article
AN - SCOPUS:0019020102
SN - 0022-3093
VL - 38-39
SP - 693
EP - 698
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - PART 2
ER -