Journal ArticleDOI
Size dependence of the contact angle of liquid clusters of Bi and Sn supported on SiO2, Al2O3, graphite, diamond and AlN
TLDR
In this paper, it was shown that the interfacial energy between the substrates and liquid metals depends on the size of liquid metal clusters and changes significantly at around 20 µm.Abstract:
Crystalline clusters of Bi and Sn with the diameters ranging from 100 to 5 nm were prepared by in situ evaporation on to different kinds of substrates in a transmission electron microscope. These metal clusters were then heated to the molten state and behaviour of the metal liquid clusters observed in situ in the transmission electron microscope. The contact angle of liquid clusters of Bi and Sn on different kinds of substrates changes as a function of the size of liquid metal clusters. It was concluded that the interfacial energy between the substrates and liquid metals depends on the size of liquid metal clusters and changes significantly at around 20 nm.read more
Citations
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Diamond–metal interfaces in cutting tools: a review
TL;DR: In this article, the effect of several principal elements and elements added in minor amounts to the metallic matrix is critically evaluated, with special attention directed toward the need for advanced fundamental studies on the functional link between work of adhesion and work of fracture.
Journal ArticleDOI
Models of size-dependent nanoparticle melting tested on gold
TL;DR: In this paper, a review of models of non-surface melting of gold nanoparticles is presented and compared to available experimental data on gold, and their sensitivity to thermodynamic parameters such as molar volume, surface energy, and enthalpy of melting is highlighted.
Journal ArticleDOI
In Situ Heating Transmission Electron Microscopy
TL;DR: In situ heating transmission electron microscopy (TEM) is a powerful tool for understanding such temperature effects, and recently in situ heating TEM has made significant progress in terms of temperature available and resolution attained.
Journal ArticleDOI
Development of an analytical environmental TEM system and its application.
Keisuke Kishita,Hisashi Sakai,Hiromochi Tanaka,Hiroyasu Saka,Kotaro Kuroda,Masayuki Sakamoto,Akira Watabe,Takeo Kamino +7 more
TL;DR: A new environmental transmission electron microscope (TEM) has been developed for observation with a high resolution at high temperatures and under gaseous atmospheres, thus making it possible to analyze reaction processes in details.
Journal ArticleDOI
Molecular Dynamics Simulations of Water Condensation on Surfaces with Tunable Wettability.
TL;DR: It is shown that decreasing the surface hydrophobicity significantly increases the electrostatic forces between water molecules and the surface, thus increasing the water condensation rate, and a strong correlation between the rate of condensation results and the results from other surface characterization metrics is observed.
References
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Journal ArticleDOI
Electron-Diffraction Study of Liquid-Solid Transition of Thin Metal Films
TL;DR: In this paper, the melting point of thin films of Pb, Sn and Bi at various temperatures has been studied by electron diffraction method and the observed melting points are found to be lower than those of bulk metals.
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Small particle melting of pure metals
TL;DR: In this paper, the melting point and size determinations of submicron-sized crystallites of lead, tin, indium and bismuth were made directly from the dark field images of the crystallites.
Journal ArticleDOI
Observation of five-fold local symmetry in liquid lead.
Harald Reichert,Oliver Klein,Helmut Dosch,Helmut Dosch,M. Denk,Veijo Honkimäki,T. Lippmann,George Reiter +7 more
TL;DR: This work captures liquid fragments at a solid–liquid interface, and observes five-fold local symmetry in liquid lead adjacent to a silicon wall, and obtains an experimental portrait of the icosahedral fragments that are predicted to occur in all close-packed monatomic liquids.
Journal ArticleDOI
Surface melting enhanced by curvature effects
Richard Kofman,P. Cheyssac,A. Aouaj,Yossi Lereah,Guy Deutscher,T. Ben-David,J. M. Penisson,A. Bourret +7 more
TL;DR: In this paper, a phenomenological model based on the minimization of the free energy is proposed and reported in detail, which represents a significant improvement compared to previous theoretical approaches related to well-known thermodynamic size effect models, particularly insofar as the agreement with the experimental results is concerned.