Results 21 to 30 of about 328,596 (315)
Observation of Pattern Formation during Electromagnetic Levitation Using High-Speed Thermography
Electromagnetic levitation (EML) was employed for studying the velocity and morphology of the solidification front as a function of undercooling of metallic materials.
Yindong Fang +4 more
doaj +1 more source
Some In Situ Observations of GaAs Oxidation [PDF]
The oxidation of doped GaAs was studied using an environmental cell placed in a transmission electron microscope. By means of this device the oxidation was observed at temperatures from 320/sup 0/ to 600/sup 0/C under a few tens of torr of oxygen. For temperatures up to 380/sup 0/C amorphous reaction products were observed, while at temperatures of 450/
Hall, M., Rau, M.-F., Evans, J.W.
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A zeolite crystallisation model confirmed by in situ observation
Zeolite crystallisation was followed in situ using moving electrode electrochemical impedance spectroscopy. Zeolite nucleation and growth could be modeled by a two-step mechanism.
Nick Pellens +9 more
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To realize the development of high‐performance electrodes materials, real‐time observation tool that can visualize dynamical changes of electrode materials upon lithiation and sodiation is highly critical.
Jun Young Cheong +4 more
doaj +1 more source
The local pH variation near the surface of CO2 reduction electrodes is important but hard to study. We develop a continuous-flow Raman electrochemical cell that enables the first experimental study of the local pH near a CO2 reduction gas diffusion ...
Xu Lu +5 more
semanticscholar +1 more source
In-Situ CHAMP Observation of Ionosphere-Thermosphere Coupling [PDF]
The coupling between the ionised plasma and the neutral thermospheric particles plays an important role for the dynamics of the upper atmosphere. Significant progress in understanding the related processes has been achieved thanks to the availability of continuous accurate measurements of thermospheric parameters like mass density and wind by high ...
Lühr, H., Park, J., Ritter, P., Liu, H.
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Microstructural changes during thermal processing of a medium manganese steel containing (in wt%) 0.19C and 4.39 Mn were evaluated in situ with a high energy X-ray diffraction system (HEXRD).
Xiaohua Hu +6 more
semanticscholar +1 more source
In-situ research on the H2 based reduction process of high-phosphorous iron ore
Based on in-situ observation,mineral evolution in high-phosphorous iron ore during the reduction process was investigated in the H2 atmosphere at different temperatures,and the influence of temperature on the morphology of iron was discussed.
GAO Han +3 more
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Investigation on Solidification in Cu-20wt%Fe Alloy through In Situ Observation
The performance of Cu-Fe alloy is related to the solidification structure, which is directly determined by the microstructure evolution during solidification. The solidification sequence, solid–liquid interface variation, and microstructural evolution of
Junli Guo, Deping Lu, Jin Zou
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Nucleation and Growth of Iron Whiskers during Gaseous Reduction of Hematite Iron Ore Fines
A high-temperature confocal scanning laser microscope and an online reduction−water quenching experiment system were used to systematically study the generation of iron whiskers during the reduction of hematite ore particles with CO/CO2 gas.
Lei Guo +4 more
doaj +1 more source

