Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Won Wook Park"'
Publikováno v:
Korean Journal of Metals and Materials. 59:168-176
Nanocrystalline Fe-Si-B-Nb-Cu Finemet alloys show low saturation magnetic flux density compared to amorphous Fe-Si-B alloys. In the Fe-Si-B-Cu base amorphous alloys, Cu atoms form clusters which act as heterogeneous nucleation sites for α-Fe crystal
Publikováno v:
Korean Journal of Metals and Materials. 58:633-638
Magnetic induction and resonance wireless power charging generally operates in a high frequency range, and its efficiency is degraded by the generation of heat at high frequency. This makes it necessary to develop new soft magnetic materials capable
Publikováno v:
Journal of Korean Powder Metallurgy Institute. 24:24-28
Publikováno v:
Journal of the Korean Physical Society. 69:875-879
The microstructures and the electrochemical properties of rapidly-solidified Si-Cr alloys of various compositions were investigated in order to elucidate the effects of intermetallic phases on the cyclic energy capacity of the materials. Rapidly-soli
Publikováno v:
Journal of Magnetics. 21:192-196
The Fe-Si-B-Nb-Cu alloys containing Ca and Al were rapidly solidified to thin ribbons by melt-spinning. The ribbons were ball-milled to make powders, and then mixed with 1 wt.% water glass and 1.5 wt.% lubricant. The mixed powders were burn-off, and
Publikováno v:
Journal of the Korean Physical Society. 67:1937-1941
The effects of iron and rare-earth (RE) elements on the microstructures and the electrochemical properties of rapidly solidified Si alloys were investigated. Rapidly solidified Si-Fe and Si-RE ribbons were prepared by using a melt-spinning process. T
Publikováno v:
Journal of the Korean Physical Society. 67:1986-1991
In this study, Si x -Sn6-Al(94−x) (x = 40, 50, 60, 70) alloy ribbons were obtained by melt spinning, and the ribbons were ball-milled into fine powders. The powders of −500 mesh (< 25 μm) were screened by sieving, followed by etching the Al elem
Publikováno v:
Journal of the Korean institute of surface engineering. 48:199-204
Department of Nano Science & Engineering, Inje University, Gimhae 621-749, Korea(Received September 14, 2015 ; revised October 28, 2015 ; accepted October 30, 2015)AbstractRecently, fuel cell is a good alternative for energy source. Separator is a im
Publikováno v:
Journal of Korea Foundry Society. 35:8-14
Variations of nickel contents and microstructures in molten magnesium alloys on the addition of aluminum, zirconium, and manganese have been investigated. Specimens were prepared by melting under and atmosphere and casting into a disc of 29 mm diamet
Publikováno v:
Korean Journal of Metals and Materials. 55