28 Result(s)
within
K. Furuya
English
Characterization and Evaluation of Materials
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Article
Simultaneous determination of nitrogen and oxygen in metals by vacuum fusion-quadrupole mass spectrometer
Nitrogen and carbon monoxide extracted from metals are determined simultaneously by use of a combination of a vacuum-fusion furnace and a conventional low-resolution (m/Δ m=56 atm/e=28) quadrupole mass spectromet...
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Article
State analysis of sulfur in coal and coal fly ash by double-crystal X-ray fluorescence spectrometry
Double-crystal high-resolution X-ray fluorescence spectrometry was applied to the state analysis of sulfur in coal and related fly ash. For total sulfur, a proportional relationship exists between fluorescence...
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Article
Vacuum fusion determination of micro-quantities of bulk gases in low carbon iron without an effect of surface gases
Vacuum Fusion Determination of Micro-quantities of Bulk Gases in Low Carbon Iron Without an Effect of Surface Gases
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Article
Vacuum fusion determination of oxygen in gadolinium, terbium metal and iron-terbium alloy
The extraction conditions for the accurate determination of oxygen in gadolinium, terbium and iron-terbium alloy using vacuum fusion analysis were studied. The influence of the gettering effect, the analyzing ...
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Chapter and Conference Paper
Microstructual Control of Bi-System Superconductor Prepared by Partially Melting Process
The uniaxial pressing method in a partially molten state for Bi-system superconductors has been attempted in order to realize the high Jc materials. To prepare the Bi-2223 powders, we proposed a new technique ...
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Chapter and Conference Paper
Effect of Ag addition on Unidirectional Solidification Processing of YBCO Superconducting Oxides
Zone melting/unidirectional solidification process from the partial molten state has been utilized to fabricate textured Y(123) superconducting wires with silver additive. The melting temperature determined fr...
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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...
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Chapter and Conference Paper
Effect of Undercooling on Solidification in YBCO
Y1Ba2Cu3O7-δ (Y123) crystals were grown by the undercooling method at constant temperatures with Sm123 seed crystals in order to investigate a relationship between undercooling (ΔT) and a growth rate (R). The cry...
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Chapter and Conference Paper
Flux Properties in YBa2Cu3O7−δ and Inhomogeneous ESR Broadening
Inhomogeneous ESR broadening due to local field distribution was observed in the mixed state of YBa2Cu3O7−δ with Tc = 91 K. The change in the ESR lineshape was investigated with paramagnetic “spin probes” applied...
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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...
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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...
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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 ...
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Article
Si3N4-whisker/Si growth interface study using EPMA chemical shift map** of Si-Kβ bands
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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...
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Article
Selective growth of colored and colorless β-Si3N4 single crystals
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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 ...
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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 ...
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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...
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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...
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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...
