Results 11 to 20 of about 279,830 (266)
In situ observations of the nitriding of tantalum [PDF]
Journal of Microscopy, 1973 SUMMARYA gas reaction cell developed for the AEI EM7 has been used to observe directly the structural changes which occur when tantalum is heated in nitrogen. It is demonstrated that sharp images of the microstructure can be obtained from specimens at temperature while surrounded by a 5.5 mm thick layer of the reaction gas at a pressure of 35 torr. The
Swann, P.R., Thomas, G., Tighe, N.J.
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Some In Situ Observations of GaAs Oxidation [PDF]
Journal of The Electrochemical Society, 1986 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
Faraday Discussions, 2022 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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Effect of austenitizing temperature and cooling rate on Ms temperature of Fe–Ni–Cr cast iron
Journal of Materials Research and Technology, 2023 The effect of Ms temperature variation in Fe–Ni–Cr cast iron has been investigated in this paper. The heating and cooling processes were carefully compared and analysed through in-situ observation.
Kuo Cao +3 more
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Observation of Pattern Formation during Electromagnetic Levitation Using High-Speed Thermography
Crystals, 2022 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
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Advanced Materials Interfaces, 2023 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
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In-Situ CHAMP Observation of Ionosphere-Thermosphere Coupling [PDF]
Space Science Reviews, 2011 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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In-situ research on the H2 based reduction process of high-phosphorous iron ore
工程科学学报, 2015 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
Metals, 2023 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
Metals, 2019 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
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