South Korea
Country: KR
Nanocellulose and Their Thermoplastic Nanocomposites
Nanocellulose fibers with the average diameter below 100nm were successfully obtained by a high shear microfluidizer. Their large surface area and nano-scale dimensions can lead to the emerging materials for reinforcements in polymer composites, differentiating [...]
Morphological change from nano-cube to nano-sphere by addition of Ni to W in RF thermal plasma synthesis
Kim Y.M., Na H., Lee B.J., Lee W., Lee B.J., Lee W., Hwang N.M., Choi H., Korea Institute of Industrial Technology, KR
Pure W and W-Ni nano-particles were effectively synthesized by feeding thermo-physically favorable oxide feedstock micro-powder into argon-hydrogen thermal plasma. During the process, feedstock particle underwent a vaporization, reduction, and condensation pathway. Significant amount of nano-cube [...]
Hollow core-shell structured mesoporous MWCNT/carbon nanofiber composites by electrospinning and silica template as counter electrodes for dye-sensitized solar cells
The multi-walled carbon nanotube (CNT)-embedded carbon nanofibers with hollow core/highly mesoporous shell stucture (CNT/Meso-HACNF) are prepared by concentric electrospinning using poly(methyl methacrylate) (PMMA) as a pyrolytic core precursor with either CNT/polyacrylonitrile (PAN) or fumed silica [...]
In-Situ Synthesis of Hydrazine in Graphene Oxide Suspension and Stable Dispersion of Spontaneously Reduced Graphene Oxide Assisted by Hexamethyldisilazane
Han J.T., Jang J.I., Jeong B.H., Jeong H.J., Jeong S.Y., Jeong B.H., Jeong H.J., Jeong S.Y., Jeong B.H., Jeong H.J., Jeong S.Y., Lee G.W., Korea Electrotechnology Research Institute, KR
The development of the efficient and environmental-friendly reduction method of graphene oxide (GO) in solution is one of challenges. Here we show the environmetally friendly reduction and a solution processability of chemically modified graphene nanoplatelets [...]
Magnetic Resonance Force Microscopy using a Commercially Available SPM Unit
Magnetic resonance force microscopy (MRFM) is considered another as a novel scanning probe microscope (SPM) combined with conventional SPM and magnetic resonance imaging. Originally, MRFM is proposed as a means to improve detection sensitivity to [...]
Ti-based nanocrystallites formation by high-energy milling
Kwon H., Jung S., Cho S.W., Kil D.S., Kim J., Roh K.M., Lim J.W., Korea Institute of Geoscience and Mineral Resources, KR
There are many researches for the solid-solution to prepare the materials with the properties which pure materials do not have. However, basically, it was difficult to synthesize the solid-solution phase because of high activation energy [...]
Synthesis of hollow silica particles with tunables ize,shell thickness,and morphology
Kim J., Lee J., Chang H., Choi J.W., Jang H-D, Kim J., Korea Institute of Geoscience and Mineral Resources, KR
Here, we provide simple methods to modify the particle size, shell thickness, and the morphology of hollow silica particles (HSPs). To synthesize the HSPs, we adopted polystyrene (PS) particles as a sacrificial template. Size tune [...]
Health Monitoring of Carbon/Carbon Composites Monitored by Ultrasonic TOF Technique
Carbon/carbon (C/C) composites reinforced with carbon nanotube are tested for their application to primary aircraft structures using ultrasonic testing. Ultrasonic testing is the most widely used and most powerful procedure for inspecting composites. Composites are [...]
The distribution of nano size clusters in deformed FeCu alloy by small angle neutron scattering
Park D.G., Song H., Vertesy G., Kobayashi S., Takahashi S., Korea Atomic Energy Research Institute (KAERI), KR
Fe-Cu alloys are commonly used for a simulation of radiation damage of reactor pressure vessel (RPV) because a neutron irradiation enhances the copper rich precipitates (CRPs) with the sizes of several nanometer which is known [...]