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Arbuzov, V. L.; Vykhodets, V. B.; Trakhtenberg, S., I; Davletshin, A. E.; Bakunin, O. M.; Plotnikov, S. A.; Lee, J. H.; Kim, S. J.; Chung, B. S. |
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Publication |
The use of STM for investigation of surface relief in respect to tribologic properties of DLC coatings |
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Journal Article |
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1996 |
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Abstract |
Journal de Physique IV |
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J. de Phys. IV |
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6 |
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C5 |
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Summary Language |
185-188 |
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Scanning Tunneling Microscopy |
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Miller, M. K.; Suvorov, A. L.; Bakhtizin, R. Z. |
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1155-4339 |
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2-86883-289-X |
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IFES |
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2114 |
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Bakhtizin, R. Z.; Valeev, V. G. |
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Microroughness field emission electron energy distribution and electron-phonon interaction spectroscopy near the metal surface |
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Journal Article |
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1988 |
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Physica Status Solidi A |
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Phys. Stat. Sol. A |
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108 |
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1 |
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251-255 |
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Field Emission |
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Field electron emission is considered from microtips on the metal surface. The possibility is shown of field emission spectroscopy of electron-phonon interaction near the emitting surface and the influence is studied of an increase in the surface potential barrier transparency by application of a weak high-frequency field altering the character of the field electron energy distribution in such a system. |
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4012 |
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Bakhtizin, R. Z.; Valeev, V. G. |
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Field evaporation stimulated by a coherent electromagnetic wave |
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Journal Article |
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1990 |
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Surface Science |
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Surf. Sci. |
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231 |
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1-2 |
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135-138 |
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Field Ion Microscopy |
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Laser-stimulated processes of constant field evaporation of surface atoms are described. It is shown that under certain conditions the application of a weak alternating field may enhance ion tunneling and result in a significant increase in ion current. The paper offers a numerical estimation of the expected results of such an experiment. |
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4324 |
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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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Lee, R. A.; Miller, A. J.; Patel, C.; Williams, H. A. |
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Construction and performance of field emitting cathodes |
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Book Chapter |
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1990 |
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Vacuum Microelectronics, 1989 |
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105-108 |
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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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4839 |
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Huang, L.; Lee, Y. H. |
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Experimental method for preparing nanometer scale Pd probe |
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Journal Article |
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1993 |
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Review of Scientific Instruments |
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Rev. Sci. Instrum. |
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64 |
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10 |
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3022-3023 |
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Two-step electrochemical etching is used to fabricate a palladium microprobe having a tip diameter less than 20 nm. The first etching is done at 4–7 V in a solution containing 4:6 volume ratio of HCl:HNO3, while in the second the etching, low voltage pulses are used. |
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5327 |
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Anderson, C. R.; Lee, R. N. |
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Accurate measurements of electron energies by field-emitter referencing |
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Journal Article |
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1984 |
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Journal of Electron Spectroscopy and Related Phenomena |
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J. Electron Spectrosc. Relat. Phenom. |
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34 |
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2 |
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173-198 |
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A new technique of electron Spectroscopy is described in which a standard electron spectrometer is used to compare the electron energy to be measured with the energies of electrons from a field-emitter reference source. Since the reference electrons are emitted at the Fermi level of the emitter tip, their total energy can be accurately measured with a high precision digital voltmeter. The measurements are automatically referenced to the absolute scale of energies and the need for calibration standards is eliminated. The application of the technique to X-ray photoelectron Spectroscopy (XPS) is described. Detailed analysis shows that the uncertainty in the field-emitter referenced XPS measurements is ± 0.06 electron volts. |
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8497 |
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Ahmad, Zaki; Ul-Hamid, Anwar; B.J., Abdul-Aleem |
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The corrosion behavior of scandium alloyed Al 5052 in neutral sodium chloride solution |
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Journal Article |
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2001 |
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Corrosion Science |
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43 |
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7 |
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1227-1243 |
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Corrosion; Al–Mg–Sc; Age-hardening; Microstructure; Pitting potential; Polarization |
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Alloying with scandium has a strong influence on the strengthening and weight saving characteristics of Al–2.5Mg alloys. Scandium addition (0.1–0.3 wt.%) to Al–2.5Mg alloys does not introduce any appreciable loss in their resistance to corrosion in 3.5 wt.% NaCl. The corrosion behavior of these alloys is not significantly affected by age hardening. Because of a unique combination of outstanding mechanical properties and a good resistance to corrosion Al–Mg alloys containing scandium represent a major improvement over the more familiar Al–Mg alloys. |
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NU @ karnesky @ |
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435 |
| Permanent link to this record |
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Park, Kyung-Tae; Hwang, Duck-Young; Lee, Young-Kook; Kim, Young-Kuk; Shin, Dong Hyuk |
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High strain rate superplasticity of submicrometer grained 5083 Al alloy containing scandium fabricated by severe plastic deformation |
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Journal Article |
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2003 |
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Materials Science and Engineering A |
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Mater. Sci. Eng. A |
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341 |
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1-2 |
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273-281 |
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High strain rate superplasticity; 5083 Al alloy; Scandium; Severe plastic deformation; Ultrafine grains |
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High strain rate superplasticity (HSRS) was obtained in a commercial 5083 Al alloy by introducing a ultrafine grained structure of 0.3 small mu, Greekm through severe plastic deformation and by adding a dilute amount of scandium (Sc) as a microstructure stabilizer. Tensile tests were carried out on the as-processed sample at temperatures of 623–823 K and initial strain rates of 1×10−3–1×100 s−1. The maximum elongation to failure of 740% was obtained at 773 K and 1×10−2 s−1. HSRS of the alloy was attributed to the combined effects of dynamic recrystallization and preservation of fine recrystallized grains by the presence of Sc. The mechanical behavior of the alloy at 773 K was characterized by a sigmoidal behavior in a plot of stress vs strain rate in the double logarithmic scale. The origin of the sigmoidal behavior was discussed in terms of microstructural evolution during superplastic deformation. An examination of the fractured samples revealed that failure occurred in a brittle manner related to cavitation rather than necking. Cavity stringers were formed parallel to the tensile axis by interlinkage of jagged-shaped isolated cavities along grain boundaries aligned to the tensile axis. |
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NU @ karnesky @ |
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585 |
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Park, Kyung-Tae; Lee, Hang-Jae; Lee, Chong Soo; Nam, Won Jong; Shin, Dong Hyuk |
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Enhancement of high strain rate superplastic elongation of a modified 5154 Al by subsequent rolling after equal channel angular pressing |
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Journal Article |
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2004 |
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Scripta Materialia |
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Scripta Mater. |
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51 |
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6 |
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479-483 |
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Aluminum alloy; Superplasticity; Equal channel angular pressing; Rolling |
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Subsequent rolling after equal channel angular pressing (ECAP) resulted in a considerable enhancement of the high strain rate superplastic elongation of a modified 5154 Al alloy, compared to that of the alloy subjected to the identical ECAP strain without rolling. The mechanical data revealed that the deformation of the former was governed by grain boundary sliding but that of the latter was dominated by viscous glide. |
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NU @ karnesky @ |
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586 |
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