Ellipsometric Study on Size-Dependent Melting Point of Nanometer-Sized Indium Particles

2016 ◽  
Vol 120 (19) ◽  
pp. 10686-10690 ◽  
Author(s):  
Jinbo Zhang ◽  
Yuxiang Zheng ◽  
Dongdong Zhao ◽  
Shangdong Yang ◽  
Liao Yang ◽  
...  
Keyword(s):  
Melting Point ◽  
Size Dependent ◽  
Ellipsometric Study

ELLIPSOMETRIC STUDY OF THE ICE SURFACE STRUCTURE JUST BELOW THE MELTING POINT

1987 ◽  
Vol 48 (C1) ◽  
pp. C1-495-C1-501 ◽  
Author(s):  
Y. FURUKAWA ◽  
M. YAMAMOTO ◽  
T. KURODA
Keyword(s):  
Melting Point ◽  
Surface Structure ◽  
Ice Surface ◽  
Ellipsometric Study

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.

Size-dependent melting point of noble metals

2003 ◽  
Vol 82 (1) ◽  
pp. 225-227 ◽  
Author(s):  
Q Jiang ◽  
S Zhang ◽  
M Zhao
Keyword(s):  
Melting Point ◽  
Noble Metals ◽  
Size Dependent

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.

Size dependent thermal vibrations and melting in nanocrystals

1994 ◽  
Vol 9 (5) ◽  
pp. 1307-1314 ◽  
Author(s):  
Frank G. Shi
Keyword(s):  
Melting Point ◽  
Simple Model ◽  
Melting Temperature ◽  
Present Model ◽  
Semiconductor Nanocrystals ◽  
Quantitative Agreement ◽  
Bulk Crystal ◽  
Size Dependent ◽  
Measurable Parameter ◽  
Thermal Vibrations

A simple model for the size-dependent amplitude of the atomic thermal vibrations of a nanocrystal is presented which leads to the development of a model for the size dependent melting temperature in nanocrystals on the basis of Lindemann's criterion. The two models are in terms of a directly measurable parameter for the corresponding bulk crystal, i.e., the ratio between the amplitude of thermal vibrations for surface atoms and that for interior ones. It is shown that the present model for the melting temperature offers not only a qualitative but even an excellent quantitative agreement with the experimentally observed size-dependent superheating, as well as melting point suppression in both the supported and embedded metallic and semiconductor nanocrystals.

Size-dependent melting point of nanoparticles based on bond number calculation

2013 ◽  
Vol 137 (3) ◽  
pp. 1007-1011 ◽  
Author(s):  
H. Li ◽  
P.D. Han ◽  
X.B. Zhang ◽  
M. Li
Keyword(s):  
Melting Point ◽  
Bond Number ◽  
Size Dependent

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.

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