|   | 
Title Park, K. H.; Lee, S.; Koh, K. H.; Park, J. I.; Park, K. J.; Takaya, M.
Year Field emission characteristics of diamond films
Abbreviated Journal Journal Article
Issue 1996 Keywords Han'guk Pyomyon Konghak Hoechi
Thesis 29
Place of Publication Language 505-511
Original Title Field Emission
Series Title Series Volume
Serial Orig Record
no 2029
Permanent link to this record

Park, T. S.; Chae, K. S.; Lee, W. S.; Lee, W. H. Study on amorphous Ni77.5Si7.9B14.6 alloy by FIM and atom probe Journal Article 1987 Sae Mulli 27 atom probe field ion microscopy no 3921
Permanent link to this record

Park, T. S.; Sohn, K. S.; Jung, S. M.; Lee, W. S. FIM and FIM-atom probe analysis of niobium-hydrogen system Journal Article 1987 Sae Mulli 27 no 3994
Permanent link to this record

Lee, D.-H.; Hong, K.T.; Nam, S.W. Intergraular fracture behavior of an Al-3at.%Mg solid solution alloy under the viscous glide creep condition Journal Article 1991 Scripta Metallurgica et Materialia 25 4 823-828 no NU @ karnesky @ 10279
Permanent link to this record

Kim, S.-H.; Lee, J.Y.; Ahn, J.-P.; Choi, P.-P. Fabrication of Atom Probe Tomography Specimens from Nanoparticles Using a Fusible Bi-In-Sn Alloy as an Embedding Medium Journal Article 2019 Microscopy and Microanalysis 25 2 438-446 atom probe tomography; fusible alloy; nanoparticles We propose a new method for preparing atom probe tomography specimens from nanoparticles using a fusible bismuth-indium-tin alloy as an embedding medium. Iron nanoparticles synthesized by the sodium borohydride reduction method were chosen as a model system. The as-synthesized iron nanoparticles were embedded within the fusible alloy using focused ion beam milling and ion-milled to needle-shaped atom probe specimens under cryogenic conditions. An atom probe analysis revealed boron atoms in a detected iron nanoparticle, indicating that boron from the sodium borohydride reductant was incorporated into the nanoparticle during its synthesis. Cambridge University Press 2019/02/04 1431-9276 no NU @ karnesky @ 11534
Permanent link to this record

Lee, S.-M.; Pyun, S.-I. Effects of hydrogen redistribution on hydrogen-assisted cracking in Al-1.9% Li and Al-4.5% Zn-2.3% Mg alloys Journal Article 1990 Scripta Metallurgica et Materialia 24 9 1629-1634 no NU @ karnesky @ 10238
Permanent link to this record

Lee, W.S.; Chen, T.H. Effects of strain rate and temperature on dynamic mechanical behaviour and microstructural evolution in aluminium-scandium (Al-Sc) alloy Journal Article 2008 Materials Science and Technology 24 10 1271-1282 AL-SC ALLOY; STRAIN RATE SENSITIVITY; ACTIVATION ENERGY; ADIABATIC SHEARING; DISLOCATION; AL3SC PRECIPITATES The present study applies a compressive split Hopkinson bar to investigate the mechanical response, microstructural evolution and fracture characteristics of an aluminium-scandium (Al-Sc) alloy at temperatures ranging from − 100 to 300°C and strain rates of 1·2 × 103, 3·2×103 and 5·8 × 103 s−1. The relationship between the dynamic mechanical behaviour of the Al-Sc alloy and its microstructural characteristics is explored. The fracture features and microstructural evolution are observed using scanning and transmission electron microscopy techniques. The stress-strain relationships indicate that the flow stress, work hardening rate and strain rate sensitivity increase with increasing strain rate, but decrease with increasing temperature. Conversely, the activation volume and activation energy increase as the temperature increases or the strain rate decreases. Additionally, the fracture strain reduces with increasing strain rate and decreasing temperature. The Zerilli-Armstrong fcc constitutive model is used to describe the plastic deformation behaviour of the Al-Sc alloy, and the error between the predicted flow stress and the measured stress is found to be less than 5%. The fracture analysis results reveal that cracks initiate and propagate in the shear bands of the Al-Sc alloy specimens and are responsible for their ultimate failure. However, at room temperature, under a low strain rate of 1·2 × 103 s−1 and at a high experimental temperature of 300°C under all three tested strain rates, the specimens do not fracture, even under large strain deformations. Scanning electron microscopy observations show that the surfaces of the fractured specimens are characterised by transgranular dimpled features, which are indicative of ductile fracture. The depth and density of these dimples are significantly influenced by the strain rate and temperature. The transmission electron microscopy structural observations show the precipitation of Al3Sc particles in the matrix and at the grain boundaries. These particles suppress dislocation motion and result in a strengthening effect. The transmission electron microscopy analysis also reveals that the dislocation density increases, but the dislocation cell size decreases, with increasing strain rate for a constant level of strain. However, a higher temperature causes the dislocation density to decrease, thereby increasing the dislocation cell size. no NU @ m-krug @ 10531
Permanent link to this record

Aleksankin, M. M.; Samchenko, I. P.; Fileleeva, L. I.; Nazarenko, V. A.; Pokrovskii, V. A.; Topchii, V. A. Dissociation and rearrangements of molecular ions of sulfides, sulfoxides, and sulfones generated by a strong electric field Journal Article 1987 Teoreticheskaya I Eksperimentalnaya Khimiya Teor. Eksp. Khim. 23 no 3777
Permanent link to this record

Bakhtizin, R. Z.; Valeev, V. G.; Kukharenko, Y. A. Field emitted electron inelastic energy losses spectroscopy Journal Article 1989 Izv. Khim. 22 Addendum to Atom Probe Field Ion Microscopy and Related Topics: A Bibliography for 1978-1987, 1988, and 1989 no 4419
Permanent link to this record

Kang, M.-J.; Pyun, J.-C.; Lee, J.-C.; Choi, Y.-J.; Park, J.-H.; Park, J.-G.; Lee, J.-G.; Choi, H.-J. Nanowire-assisted laser desorption and ionization mass spectrometry for quantitative analysis of small molecules Journal Article 2005 Rapid Communications in Mass Spectrometry 19 21 3166-3170 1097-0231 no NU @ karnesky @ Kang2005 9529
Permanent link to this record