Size-dependent melting point depression of nanostructures: Nanocalorimetric measurements

2000 ◽  
Vol 62 (15) ◽  
pp. 10548-10557 ◽  
Author(s):  
M. Zhang ◽  
M. Yu. Efremov ◽  
F. Schiettekatte ◽  
E. A. Olson ◽  
A. T. Kwan ◽  
...  
Keyword(s):  
Melting Point ◽  
Melting Point Depression ◽  
Size Dependent

scholarly journals Phase diagram prediction and particle characterization of Sn-Ag nano alloy for low melting point lead-free solders

2012 ◽  
Vol 48 (3) ◽  
pp. 419-425 ◽  
Author(s):  
J. Sopousek ◽  
J. Vrestal ◽  
A. Zemanova ◽  
J. Bursi
Keyword(s):  
Phase Diagram ◽  
Melting Point ◽  
Inductively Coupled Plasma ◽  
Fine Powder ◽  
Melting Point Depression ◽  
Electron Microscopic ◽  
Inductively Coupled ◽  
Size Dependent ◽  
Powder Samples ◽  
Wet Synthesis

SnAg nanoparticles (SnAg NPs) were prepared by wet synthesis. The chemical composition of the SnAg NPs was obtained by inductively coupled plasma - mass spectrometry. The prepared fine powder samples were characterized by electron microscopic technique (SEM) and thermal analysis (DSC). The nanoparticles with different size were obtained. The size dependent melting point depression (MPD) of the SnAg NPs was determined experimentally. The size dependent phase diagram of the SnAg alloy was also calculated using CALPHAD method, which has been extended to describe the surface energy of SnAg nanoparticles. The same approach was used for SnAg eutectic MPD calculations. The own experimental and theoretical results were compared with the data of the other authors. The satisfactory agreement was found.

scholarly journals Size-dependent melting point depression of nickel nanoparticles

2020 ◽  
Vol 2 (6) ◽  
pp. 2347-2351 ◽  
Author(s):  
Alexander van Teijlingen ◽  
Sean A. Davis ◽  
Simon R. Hall
Keyword(s):  
Melting Point ◽  
Molecular Dynamic ◽  
Nickel Nanoparticles ◽  
Melting Point Depression ◽  
Size Dependent

The melting point depression as a function of size has not been determined experimentally (orange line) for nickel before. This figure shows our results compared with molecular dynamic (blue) and thermodynamic (black, red, green) models.

scholarly journals Comparison of the observed size-dependent melting point of CdSe nanocrystals to theoretical predictions

2018 ◽  
Vol 9 (1) ◽  
pp. 39-43
Author(s):  
Albert Demaine Dukes III ◽  
Christopher Dylan Pitts ◽  
Anyway Brenda Kapingidza ◽  
David Eric Gardner ◽  
Ralph Charles Layland
Keyword(s):  
Melting Point ◽  
Surface Area ◽  
Melting Temperature ◽  
Volume Ratio ◽  
Melting Point Depression ◽  
Cdse Nanocrystals ◽  
Size Dependent ◽  
Theoretical Predictions

Cadmium selenide nanocrystals were observed to have a size-dependent melting point which was depressed relative to the bulk melting temperature. The observed size-dependent melting point ranged from 500-1478 K, while a model based on the surface area to volume ratio predicted that is should range between 774-1250 K. The nanocrystals were heated in situ in the electron microscope, and the melting point was almost immediately followed by the vaporization of the CdSe nanocrystals, allowing for straightforward determination of the melting temperature. The differences between the observed melting point of CdSe nanocrystals and the values predicted by the surface area to volume ratio model indicates that additional factors are involved in the melting point depression of nanocrystals.

Melting point depression study of polyacrylonitrile

1960 ◽  
Vol 43 (142) ◽  
pp. 467-488 ◽  
Author(s):  
W. R. Krigbaum ◽  
Noboru Tokita
Keyword(s):  
Melting Point ◽  
Melting Point Depression

Standard enthalpy of fusion of N,N′-ethylenebis (2,4-pentanedion-iminoato)nickel(II) complex by DTA-based melting point depression studies

2005 ◽  
Vol 59 (11) ◽  
pp. 1334-1337 ◽  
Author(s):  
S. Arockiasamy ◽  
P. Antony Premkumar ◽  
O.M. Sreedharan ◽  
C. Mallika ◽  
V.S. Raghunathan ◽  
...  
Keyword(s):  
Melting Point ◽  
Standard Enthalpy ◽  
Enthalpy Of Fusion ◽  
Melting Point Depression
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