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Chung, B.; Cho, H.; Lee, S.; Ko, T. – Y.; Lee, J. – Y.; Jeon, D.; Lee, K. – R.; Joo, B. K.; Oh, M. H. |
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Silicon field emitters coated with diamond-like carbon |
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Journal Article |
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1996 |
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Journal de Physique IV |
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J. de Phys. IV |
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6-C5 |
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85-89 |
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Field Emission |
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2119 |
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Aleev, A.A.; Iskandarov, N.A.; Klimenkov, M.; Lindau, R.; Möslang, A.; Nikitin, A.A.; Rogozhkin, S.V.; Vladimirov, P.; Zaluzhnyi, A.G. |
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Investigation of oxide particles in unirradiated ODS Eurofer by tomographic atom probe |
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Journal Article |
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2011 |
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Journal of Nuclear Materials |
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409 |
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2 |
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65-71 |
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Ods; atom probe tomography; precipitation |
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Oxide dispersion strengthened steels possess better high-temperature creep and radiation resistance than conventionally produced ferritic/martensitic steels. This behavior is mainly caused by the presence of highly dispersed and extremely stable oxide particles with diameters of a few nanometers. In this work the nanostructure of ODS Eurofer steel was investigated by means of tomographic atom probe and correlations with recent TEM and SANS studies were derived. The present investigation revealed nanoscaled clusters of typically 2 nm diameter containing not only yttrium and oxygen but also vanadium and nitrogen. Moreover, concentration of vanadium in particles was found to be higher than that of yttrium, which indicates the importance of these elements in cluster formation. The estimated average cluster number density is about 2×1024 m-3. These enriched zones might be evidently attributed to precursors of the larger precipitates observed by TEM. This conclusion is also supported by the similarities of the chemical composition inside enriched zones seen in both atomic probe and TEM data. |
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0022-3115 |
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NU @ karnesky @ |
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10951 |
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Lee, S.; Matsunaga, H.; Sauvage, X.; Horita, Z. |
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Strengthening of Cu–Ni–Si alloy using high-pressure torsion and aging |
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Journal Article |
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2014 |
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Materials Characterization |
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90 |
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62-70 |
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High-pressure torsion; Ultrafine grain; Cu–Ni–Si; Electrical conductivity; Apt |
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Abstract An age-hardenable Cu–2.9%Ni–0.6%Si alloy was subjected to high-pressure torsion. Aging behavior was investigated in terms of hardness, electrical conductivity and microstructural features. Transmission electron microscopy showed that the grain size is refined to ~ 150 nm and the Vickers microhardness was significantly increased through the HPT processing. Aging treatment of the HPT-processed alloy led to a further increase in the hardness. Electrical conductivity is also improved with the aging treatment. It was confirmed that the simultaneous strengthening by grain refinement and fine precipitation is achieved while maintaining high electrical conductivity. Three dimensional atom probe analysis including high-resolution transmission electron microscopy revealed that nanosized precipitates having compositions of a metastable Cu3Ni5Si2 phase and a stable NiSi phase were formed in the Cu matrix by aging of the HPT-processed samples and these particles are responsible for the additional increase in strength after the HPT processing. |
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1044-5803 |
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NU @ karnesky @ |
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11492 |
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Gaudin, G. A.; Lee, G., M J |
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Aggregates of chemisorbed copper on the (110) and (100) surfaces of tungsten: electronic structure |
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Journal Article |
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1994 |
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Surface Science |
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Surf. Sci. |
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310 |
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34-44 |
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Field Emission |
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3028 |
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Lee, C. G.; Ahn, H. Y.; Lee, J. D.; Park, H. S. |
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A new approach to manufacturing field emitter arrays with submicron gate apertures |
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Journal Article |
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1995 |
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Tech. Dig. |
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14-17 |
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Field Emission |
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2841 |
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Cade, J. N. A., S E; Lee, R. A. |
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Fabrication of sharp field emission structures using ion beam milling |
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Book Chapter |
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1990 |
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Vacuum Microelectronics, 1989 |
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5-8 |
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Field Emission |
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Institute of Physics |
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Bristol |
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Turner, Roy E. |
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0854980555 |
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4823 |
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Derraa, A.; Lee, G., M J |
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Configuration and electronic structure of silver overlayers on microscopic (110) facets of tungsten |
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Journal Article |
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1995 |
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Surface Science |
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Surf. Sci. |
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329 |
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1-13 |
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3001 |
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Ahn, I. S.; Kim, S. S.; Park, M. W.; Lee, K. M. |
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Phase Characteristics of Mechanically Alloyed Al-10wt.%Nb Alloy |
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Journal Article |
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2000 |
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Journal of Materials Science Letters |
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22 |
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2015-2018 |
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refbase @ user |
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904 |
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Barnett, D. M.; Lee, J. K.; Aaronson, H. I.; Russell, K. C. |
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Strain Energy of a Coherent Ellipsoidal Precipitate |
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Journal Article |
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1974 |
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Scripta Metallurgica |
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12 |
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1447-1450 |
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Mit,Dept Met & Mat Sci,Cambridge,Ma 02139
Michigan Technol Univ,Dept Met Engn,Houghton,Mi 49931
Mit,Ctr Mat Sci & Engn,Cambridge,Ma 02139
Stanford Univ,Dept Mat Sci,Stanford,Ca 94305 |
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Times Cited: 54
Article
English
Cited References Count: 8
V0806 |
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refbase @ user |
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951 |
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Chan, K. S.; Lee, J. K.; Shiflet, G. J.; Russell, K. C.; Aaronson, H. I. |
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Generalization of Nucleus Shape-Dependent Parameters in the Nucleation Rate Equation |
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Journal Article |
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1978 |
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Metallurgical Transactions a-Physical Metallurgy and Materials Science |
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9 |
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7 |
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1016-1017 |
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Chan, K. S.
Michigan Technol Univ,Dept Met Engn,Houghton,Mi 49931
Mit,Ctr Mat Sci,Cambridge,Ma 02139
Mit,Dept Mat Sci & Engn,Cambridge,Ma 02139 |
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Times Cited: 4
Note
English
Cited References Count: 10
Fj502 |
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refbase @ user |
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1016 |
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