Strong Memory Effect of Crystallization above the Equilibrium Melting Point of Random Copolymers

2013 ◽  
Vol 46 (16) ◽  
pp. 6485-6497 ◽  
Author(s):  
Benjamin O. Reid ◽  
Madhavi Vadlamudi ◽  
Al Mamun ◽  
Hamed Janani ◽  
Huanhuan Gao ◽  
...  
Keyword(s):  
Melting Point ◽  
Memory Effect ◽  
Random Copolymers ◽  
Equilibrium Melting Point

Molecular Dynamics Simulations on Melting of Aluminum

2013 ◽  
Vol 423-426 ◽  
pp. 935-938 ◽  
Author(s):  
Ji Feng Li ◽  
Xiao Ping Zhao ◽  
Jian Liu
Keyword(s):  
Molecular Dynamics ◽  
Melting Point ◽  
Molecular Dynamics Simulations ◽  
High Pressures ◽  
Ambient Pressure ◽  
Initial Porosity ◽  
Equilibrium Melting Point ◽  
Porosity Effect ◽  
Dynamics Simulations ◽  
Experimental Melting Point

Molecular dynamics simulations were performed to calculate the melting points of perfect crystalline aluminum to high pressures. Under ambientpressure, there exhibits about 20% superheating before melting compared to the experimental melting point. Under high pressures, thecalculated melting temperature increases with the pressure but at a decreasing rate, which agrees well with the Simon's melting equation. Porosity effect was also studied for aluminum crystals with various initial porosity at ambient pressure, which shows that the equilibrium melting point decreases with the initial porosity as experiments expect.

A new micromethod for determining the equilibrium melting point curve

Cryobiology ◽  
1975 ◽  
Vol 12 (6) ◽  
pp. 583
Author(s):  
A.P. MacKenzie ◽  
D.H. Rasmussen
Keyword(s):  
Melting Point ◽  
Equilibrium Melting Point ◽  
Point Curve

Dissolution and Growth Kinetics of Small Crystals in Liquids

1991 ◽  
Vol 238 ◽  
Author(s):  
Michael J. Uttormark ◽  
Michael O. Thompson ◽  
Paulette Clancy
Keyword(s):  
Molecular Dynamics ◽  
Melting Point ◽  
Driving Force ◽  
Nucleation Theory ◽  
Classical Nucleation Theory ◽  
Equilibrium Melting Point ◽  
Small Crystals ◽  
Dynamics Simulations ◽  
Kinetics Of ◽  
Nucleation Phenomenon

ABSTRACTMolecular Dynamics simulations of the melting of small crystalline clusters (≃800 atoms) in the liquid have been performed at various temperatures above the equilibrium melting point. The melting rates as functions of size and temperature are derived and compared to that predicted by Classical Nucleation Theory. It is found that the driving force for the melting of clusters does not follow the form assumed in the theory, and that this difference is most apparent for clusters containing less than 300 atoms. The implications of these findings on nucleation phenomenon and possible sources for the discrepancies are discussed.

Crystal structure, melting behaviour and equilibrium melting point of star polyesters with crystallisable poly(ε-caprolactone) arms

Polymer ◽  
2004 ◽  
Vol 45 (15) ◽  
pp. 5251-5263 ◽  
Author(s):  
E. Núñez ◽  
C. Ferrando ◽  
E. Malmström ◽  
H. Claesson ◽  
P.-E. Werner ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Melting Point ◽  
Melting Behaviour ◽  
Equilibrium Melting Point

A melting-point-of gallium apparatus for thermometer calibration.

1978 ◽  
Vol 24 (8) ◽  
pp. 1331-1334 ◽  
Author(s):  
H E Sostman ◽  
K A Manley
Keyword(s):  
Fixed Point ◽  
Melting Point ◽  
Enzyme Reaction ◽  
Temperature Dependent ◽  
Biological Assays ◽  
Equilibrium Melting Point ◽  
Thermistor Temperature ◽  
Thermometer Calibration ◽  
Melting Point Of Gallium ◽  
Temperature Plateau

Abstract We have investigated the equilibrium melting point of gallium as a temperature fixed-point at which to calibrate small thermistor thermometers, such as those used to measure temperature in enzyme reaction analysis and other temperature-dependent biological assays. We have determined that the melting temperature of "6N" (99.999% pure) gallium is 29.770 +/- 0.002 degrees C, and that the constant-temperature plateau can be prolonged for several hours. We have designed a simple automated apparatus that exploits this phenomenon and that permits routine calibration verification of thermistor temperature probes throughout the laboratory day. We describe the physics of the gallium melt, and the design and use of the apparatus.

Lamellar Thickening and the Equilibrium Melting Point of Polypropylene

1994 ◽  
Vol 27 (4) ◽  
pp. 997-1002 ◽  
Author(s):  
Khaled Mezghani ◽  
R. Anderson Campbell ◽  
Paul J. Phillips
Keyword(s):  
Melting Point ◽  
Equilibrium Melting Point
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