28 Result(s)
within
K. Furuya
English
Characterization and Evaluation of Materials
-
Article
What Xe Nanocrystals in Al Can Teach us in Materials Science
Noble gases are generally very insoluble in solids. For example, Xe implanted into Al at 300 K forms a fine dispersion of crystalline precipitates and, at large enough fluence, fluid precipitates, both of whic...
-
Article
Post-deposition processes for nanostructures formed by electron beam induced deposition with Pt(PF3)4 precursor
Electron beam induced deposition was performed using a Pt(PF3)4 precursor gas. Self-standing nanowires were produced on the edge of a molybdenum film, followed by two post-deposition processes; electron beam irra...
-
Article
Fabrication of nanostructures with different iron concentration by electron beam induced deposition with a mixture gas of iron carbonyl and ferrocene, and their magnetic properties
Electron beam induced deposition (EBID) with a mixture gas of iron carbonyl and ferrocene was carried out to fabricate nanostructures with different iron concentrations in a chamber of a scanning electron micr...
-
Article
Fabrication of a nano-magnet on a piezo-driven tip in a TEM sample holder
A nanometer-sized magnet (nano-magnet) was fabricated on the tip of a tungsten needle by electron-beam-induced deposition with Fe(CO)5 gas. The needle tip, which can be moved with a step** motor and piezo-drive...
-
Article
Electron beam-induced formation of nanosized α-Fe crystals
Focused electron beam induced chemical vapor deposition was performed in a scanning electron microscope with a field emission gun using a precursor of iron carbonyl. Due to the longer deposition time and highe...
-
Article
Transmission electron microscopy study on the superstructure and the precipitation of γ′-Fe4N in initially homogeneous ɛ-iron nitride powders
Annealed and quenched ɛ-Fe2-3N powders with an initially homogeneous composition of Fe3N1.0 were studied by transmission electron microscopy (TEM). TEM specimens were successfully prepared from the powder using a...
-
Article
Formation of iron silicide nano-islands on Si substrates by metal organic chemical vapor deposition under electron beams
Electron-beam induced chemical vapor deposition (EBI-CVD) of Fe(CO)5 was performed on both Si (111) and (110) substrates at 673–873 K inside an ultrahigh vacuum transmission electron microscope. The formation of ...
-
Article
TEM study of Mg-Zn precipitates in Mg-Zn-Y alloys
The precipitates in Mg-Zn-Y alloys in the as-cast state with nominal atomic composition of Mg96Zn1Y3, Mg96Zn2Y2 and Mg97Zn1Y2 were studied by means of TEM as well as XRD techniques. The results show that there is...
-
Article
Fabrication of self-standing nanowires, nanodendrites, and nanofractal-like trees on insulator substrates with an electron-beam-induced deposition
Self-standing tungsten nanowires, nanodendrites, and nanofractal-like trees were fabricated on insulator (Al2O3) substrates with a process of electron-beam-induced decomposition in a transmission electron microsc...
-
Article
Three-dimensional nanofabrication by electron-beam-induced deposition using 200-keV electrons in scanning transmission electron microscope
Attempts were made to fabricate three-dimensional nanostructures on and out of a substrate by electron-beam-induced deposition in a 200-kV scanning transmission electron microscope. Structures with parallel wi...
-
Article
Selective tungsten deposition into ordered nanohole arrays of anodic porous alumina by electron-beam-induced deposition
The selective deposition of a metal (tungsten) into ordered nanohole arrays of an anodic porous alumina membrane was performed using an electron-beam-induced deposition process. After deposition, the membrane ...
-
Article
Electron beam-induced deposition using iron carbonyl and the effects of heat treatment on nanostructure
Electron beam induced deposition was performed in a scanning electron microscope with a field emission gun using a precursor of iron carbonyl. Nanometer-sized dots and freestanding rods were produced on a carb...
-
Article
The size dependence of the nano-dots formed by electron-beam-induced deposition on the partial pressure of the precursor
We have successfully fabricated nano-dots containing W from a metal–organic gas source by electron-beam-induced deposition in an ultra-high vacuum transmission electron microscope. The size of the dots can be ...
-
Article
Selective growth of colored and colorless β-Si3N4 single crystals
-
Article
Microstructural Changes to Xenon Naonoclusters in Aluminum under 1 MeV Electron Irradiation
Aluminum films containing solid Xe precipitates have been subjected to 1 MeV electron irradiation in a high-voltage electron microscope. High-resolution images have been recorded on videotape in order to monit...
-
Article
Si3N4-whisker/Si growth interface study using EPMA chemical shift map** of Si-Kβ bands
-
Chapter
Electron-Wave Diffraction Devices
By analogy with optics, for example, Fourier transforms can be performed by the electron wave. Important for the realization of such devices is the spread of the electron wavefront, which is the subject of thi...
-
Chapter
Introduction
The long history of the field of electronics shows that it takes more than a decade to mature a new technology after planting its seed. LSI technology is growing steadily at present but the growth cannot last ...
-
Article
In-situ observation of atomic processes in Xe nanocrystals embedded in al
Self-organization processes in Xe nanocrystals embedded in Al are observed with in-situ high-resolution electron microscopy. Under electron irradiation, stacking fault type defects are produced in Xe nanocryst...
-
Chapter and Conference Paper
The melting and solidification mechanism of R123 high Tc superconductor (R=Y,Sm,Nd•••)
The improvement of critical current density(Jc) of REBa2Cu3Ox (R=Y,Sm,Nd•••, R123 hereafter) has been performed by means of unidirectional melting and solidification. The high temperature stable phase crystals (Y...
