11 Result(s)
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Article
Chang-Kyu Rhee
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Open AccessPrecisely Determining Ultralow level UO22+ in Natural Water with Plasmonic Nanowire Interstice Sensor
Uranium is an essential raw material in nuclear energy generation; however, its use raises concerns about the possibility of severe damage to human health and the natural environment. In this work, we report a...
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End Closure Joining of Ferritic-Martensitic and Oxide-Dispersion Strengthened Steel Cladding Tubes by Magnetic Pulse Welding
The magnetic pulse welding (MPW) technique was employed for the end closure joining of fuel pin cladding tubes made of ferritic-martensitic (FM) steel and oxide-dispersion strengthened (ODS) steel. The techniq...
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Enhanced thermal conductivity of nanofluids containing graphene nanoplatelets prepared by ultrasound irradiation
Stable ethylene glycol (EG)-based nanofluids containing graphene nanoplatelets (GnPs) were prepared by intensive ultrasonication without any surfactant. The structural properties of the commercially produced G...
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Morphologies and dispersion stabilities of carbon-encapsulated metal (Ag and Cu) nanoparticles synthesized by pulsed-wire evaporation (PWE)
Carbon-encapsulated Ag and Cu nanoparticles were synthesized using pulsed-wire evaporation (PWE). All as-made materials were composed of nanocapsules with a uniform particle size at and below 50 nm. The nanoca...
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Open AccessRound-robin test on thermal conductivity measurement of ZnO nanofluids and comparison of experimental results with theoretical bounds
Ethylene glycol (EG)-based zinc oxide (ZnO) nanofluids containing no surfactant have been manufactured by one-step pulsed wire evaporation (PWE) method. Round-robin tests on thermal conductivity measurements o...
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Synthesis of carbon encapsulated metal (Ni and Cu) nano particles and applications for chiral catalysts
Carbon-encapsulated Ni and Cu nanoparticles with a core/shell structure were synthesized by levitational gas condensation (LGC). Methane (CH4) gas was used to coat the surface of the Ni and Cu nanoparticles. The ...
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Preparation and characteristics of nano-B4C/PVA particles and ultra high molecular weight polyethylene composites
In-situ mechanical process for preparation of the polyvinyl alcohol (PVA) coated nano-B4C powder was investigated by using a high-energy ball mill. The produced PVA coat on the surface of nano-B4C particles was o...
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Expansion of a low conductive metal tube by an electromagnetic forming process: Finite element modeling
The expansion of a metal tube by means of an electromagnetic forming (EMF) process is attractive because EMF has a high forming rate and can reduce residual stress. The forming forces in EMF are Lorentz forces...
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Formation characteristics of an aluminum hydroxide fiber by a hydrolysis of aluminum nano powder
Formation of aluminum hydroxide by a hydrolytic reaction of nano aluminum powder synthesized by a pulsed wire evaporation (PWE) method has been studied. The type and morphology of the hydroxides were investiga...
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The effect of temperature of magnetic pulsed compaction on the characteristics of nanostructured aluminum compacts
Magnetic pulse compaction (MPC) allows one to maintain a nanostructured state in nano powder metallic compacts and to achieve near theoretical density. In this study, nano Al powders of about 80 nm in diameter...
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Liquid impact erosion mechanism and theoretical impact stress analysis in TiN-coated steam turbine blade materials
Coating of TiN film was done by reactive magnetron sputter ion plating to improve the liquid impact erosion resistance of steam turbine blade materials, 12Cr steel and Stellite 6B, for nuclear power plant appl...
