The Effect of Solute on the homogeneous Crystal Nucleation Frequency in Metallic Melts

1981 ◽  
Vol 9 ◽  
Author(s):  
C.V. Thompson ◽  
F. Spaepen
Keyword(s):  
Regular Solution Model ◽  
Solute Concentration ◽  
Crystal Nucleation ◽  
Qualitative Comparison ◽  
Glass Forming ◽  
Nucleation Frequency ◽  
Homogeneous Crystal ◽  
Complete Calculation ◽  
Metallic Melts ◽  
Approximate Expressions

ABSTRACTWe have made a complete calculation that extends the classical theory for crystal nucleation in pure melts to binary alloys. Using a regular solution model, we have developed approximate expressions for the free energy change upon crystallization as a function of solute concentration. They are used, together with model-based estimates of the interfacial tension, to calculate the nucleation frequency. The predictions of the theory for the maximum attainable undercooling are compared with existing experimental results for non-glass forming alloys. The theory is also applied to several easy glass-forming alloys (Pd-Si, Au-Si, Fe-B) for qualitative comparison with the present experimental experience on the ease of glass formation, and for assessment of the potential for formation of the glass in bulk.

Homogeneous crystal nucleation in binary metallic melts

1983 ◽  
Vol 31 (12) ◽  
pp. 2021-2027 ◽  
Author(s):  
C.V. Thompson ◽  
F. Spaepen
Keyword(s):  
Crystal Nucleation ◽  
Homogeneous Crystal ◽  
Metallic Melts

scholarly journals Impurities and Homogeneous Crystal Nucleation in Aqueous Solutions - An Overview

2019 ◽  
Vol 16 (3) ◽  
pp. 198-208
Author(s):  
C. K. Mahadevan
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Research Group ◽  
Present Author ◽  
Crystal Nucleation ◽  
Nucleation Process ◽  
Nucleation Parameters ◽  
The Past ◽  
Homogeneous Crystal ◽  
Made In

Nucleation process is the most important stage in the formation of a crystal and has attracted the attention of researchers due to its importance in many technological and biological contexts. As the presence of impurities affects the nucleation process significantly, several studies have been made in the past to understand it. In this article is presented an overview of various studies made to understand the effect of soluble impurities on the crystal nucleation parameters of certain important materials in aqueous solution focusing the results reported by the research group of the present author.

Crystal nucleation rates in glass-forming molecular liquids: D-sorbitol, D-arabitol, D-xylitol, and glycerol

2018 ◽  
Vol 149 (5) ◽  
pp. 054503 ◽  
Author(s):  
Chengbin Huang ◽  
Zhenxuan Chen ◽  
Yue Gui ◽  
Chenyang Shi ◽  
Geoff G. Z. Zhang ◽  
...  
Keyword(s):  
Crystal Nucleation ◽  
Molecular Liquids ◽  
Glass Forming

Thermodynamics and kinetics of homogeneous crystal nucleation studied by computer simulation

2000 ◽  
Vol 62 (22) ◽  
pp. 14690-14702 ◽  
Author(s):  
H. E. A. Huitema ◽  
J. P. van der Eerden ◽  
J. J. M. Janssen ◽  
H. Human
Keyword(s):  
Computer Simulation ◽  
Crystal Nucleation ◽  
Thermodynamics And Kinetics ◽  
Homogeneous Crystal ◽  
Kinetics Of

Heterogeneous and homogeneous crystal nucleation in colloidal hard-sphere like microgels at low metastabilities

Soft Matter ◽  
2011 ◽  
Vol 7 (23) ◽  
pp. 11267 ◽  
Author(s):  
Markus Franke ◽  
Achim Lederer ◽  
Hans Joachim Schöpe
Keyword(s):  
Hard Sphere ◽  
Crystal Nucleation ◽  
Homogeneous Crystal

Nucleation and Glass Formation

1985 ◽  
Vol 57 ◽  
Author(s):  
D. R. Uhlmann ◽  
M. C. Weinberg
Keyword(s):  
Glass Formation ◽  
Nucleation Theory ◽  
Crystal Nucleation ◽  
Oxide Glass ◽  
Classical Nucleation Theory ◽  
Nucleation Kinetics ◽  
Formation Behavior ◽  
Homogeneous Crystal ◽  
Exponential Factors

AbstractThe role of nucleation kinetics in affecting glass formation behavior is discussed. Also considered are measurements of homogeneous crystal nucleation in a variety of liquids. For a number of oxide glass-forming liquids, available data indicate pre-exponential factors which are larger than those predicted from classical nucleation theory by factors of 1017 to 1049. Possible sources of this discrepancy are discussed.

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