Phenomena Associated with Melting and Super Cooling in A1 and the Solid-Liquid Interface in an A1-Si Base Alloy Investigated by In-Situ Analytical Transmission Electron Microscopy

2011 ◽  
Author(s):  
Prakash Palanisamy
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Base Alloy ◽  
Liquid Interface ◽  
Analytical Transmission Electron Microscopy ◽  
Transmission Electron ◽  
Solid Liquid Interface ◽  
Solid Liquid

In Situ Heating Transmission Electron Microscopy

MRS Bulletin ◽  
2008 ◽  
Vol 33 (2) ◽  
pp. 93-100 ◽  
Author(s):  
Hiroyasu Saka ◽  
Takeo Kamino ◽  
Shigeo Ara ◽  
Katsuhiro Sasaki
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Temperature Effects ◽  
Size Dependence ◽  
Factors Affecting ◽  
Fundamental Information ◽  
Transmission Electron ◽  
Solid Liquid Interface ◽  
Solid Liquid

AbstractTemperature is one of the most important factors affecting the state and behavior of materials. 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. This article briefly describes newly developed specimen-heating holders, which are useful in carrying out in situ heating TEM experiments. It then focuses on three main applications of these specimen holders: solid–solid reactions, solid–liquid reactions (including highresolution observation of a solid–liquid interface, size dependence of the melting temperatures of one-, two- and three-dimensionally reduced systems, size dependence of the contact angle of fine metal liquid, and wetting of Si with liquid Au or Al) and solid–gas reactions. These results illustrate the benefit of in situ heating TEM for providing fundamental information on temperature effects on materials.

In situ Observation of Solid–liquid Interfaces by Transmission Electron Microscopy

2005 ◽  
Vol 20 (7) ◽  
pp. 1629-1640 ◽  
Author(s):  
H. Saka ◽  
K. Sasaki ◽  
S. Tsukimoto ◽  
S. Arai
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
In Situ Observation ◽  
Liquid Interfaces ◽  
Liquid Phases ◽  
Transmission Electron ◽  
Means Of Transmission ◽  
Solid Liquid Interface ◽  
Solid Liquid

Recent progress in in situ observation of solid–liquid interfaces by means of transmission electron microscopy, carried out by the Nagoya group, was reviewed. The results obtained on pure materials are discussed based on Jackson's theory. The structure of the solid–liquid interfaces of eutectic alloys was also observed. The in situ observation technique of solid–liquid interface is applied to industrially important reactions which include liquid phases.

In-Situ High Resolution Transmission Electron Microscopy of Solid-Liquid Interface of Alumina

1996 ◽  
Vol 466 ◽  
Author(s):  
Katsuhiro Sasaki ◽  
Hiroyasu Saka
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Liquid Interface ◽  
Alumina Powder ◽  
Atomic Step ◽  
Layer By Layer ◽  
Transmission Electron ◽  
Solid Liquid Interface ◽  
Solid Liquid

ABSTRACTThe atomic structure and dynamic behavior of the solid-liquid interface of alumina were observed in a transmission electron microscope (TEM). The in-situ heating experiment of the alumina powder was performed using the newly developed heating holder. The surface of alumina was partially melted at about 2000K. Molten alumina on the surface migrated along the surface and formed liquid droplets. Such droplets existed stably on the surface during observation. The solid-liquid interface was observed by high resolution electron microscopy. The layer-by-layer growth of solid was observed on the solid-liquid interface. The nucleation of the monolayer island and the progress of the atomic step were observed directly. The velocity of the step progress at the solid-liquid interface was directly measured.

scholarly journals Practical Aspects of Electrochemical Corrosion Measurements During In Situ Analytical Transmission Electron Microscopy (TEM) of Austenitic Stainless Steel in Aqueous Media

2017 ◽  
Vol 23 (4) ◽  
pp. 741-750 ◽  
Author(s):  
Sibylle Schilling ◽  
Arne Janssen ◽  
Nestor J. Zaluzec ◽  
M. Grace Burke
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Aqueous Media ◽  
Electrochemical Corrosion ◽  
Electrochemical Reactions ◽  
Analytical Transmission Electron Microscopy ◽  
Transmission Electron ◽  
Physical And Chemical

AbstractThe capability to perform liquid in situ transmission electron microscopy (TEM) experiments provides an unprecedented opportunity to examine the real-time processes of physical and chemical/electrochemical reactions during the interaction between metal surfaces and liquid environments. This work describes the requisite steps to make the technique fully analytical, from sample preparation, through modifications of the electrodes, characterization of electrolytes, and finally to electrochemical corrosion experiments comparing in situ TEM to conventional bulk cell and microcell configurations.

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