Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Seong Hyeon Ryu"'
Autor:
Mu Geun Jo, Seong Hyeon Ryu, Kyung Il Kim, Dong Eung Kim, Jung In Kim, Kyung Taek Kim, Sang Sub Kim, Gue Serb Cho
Publikováno v:
Korean Journal of Metals and Materials. 60:251-262
Ni-Cr-Mo-V steel alloys for high-speed railway brake discs were prepared to investigate the effect of alloying element contents on the microstructure and mechanical properties. The Cr, Mo, Mn alloying elements were incorporated into the steel alloys,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a9945f53fbe92617b4572efd711184c
https://doi.org/10.3365/kjmm.2022.60.4.251
https://doi.org/10.3365/kjmm.2022.60.4.251
Autor:
Seong Hyeon Ryu, Mu Geun Jo, Kyung Il Kim, Wooram Noh, Ik Je Hong, Kwang Hee Lee, Sang Sub Kim, Gue Serb Cho
Publikováno v:
Korean Journal of Metals and Materials. 60:227-236
WC-Co cemented carbide has excellent mechanical properties and is widely used in many industrial applications including cold forging die and cutting tools. WC-Co cemented carbide is manufactured by liquid phase sintering (LPS), and a new sintering pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcd671a2e60967c72074df00b6381fff
https://doi.org/10.3365/kjmm.2022.60.3.227
https://doi.org/10.3365/kjmm.2022.60.3.227
Publikováno v:
Korean Journal of Metals and Materials. 59:201-208
Cemented carbide is a kind of composite material in which fine particles of carbide are embedded into the matrix of a binder metal. It has a long service life because of its superior mechanical properties. In this study, the overall tensile behavior
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6504dd2eec86c6ce485c9f27372a067
https://doi.org/10.3365/kjmm.2021.59.3.201
https://doi.org/10.3365/kjmm.2021.59.3.201
Publikováno v:
Journal of Nanoscience and Nanotechnology. 12:1539-1544
Core-shell structures were prepared from synthesized SiO2-LiMn2O4 with manganese oxide as shell on the silica core by a precipitation method, which allowed control of core structure in terms of thickness and particle size. X-ray diffraction (XRD), fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::914cffcd08ff7fc81d134b268cdec726
https://doi.org/10.1166/jnn.2012.4623
https://doi.org/10.1166/jnn.2012.4623
Publikováno v:
Materials Chemistry and Physics. 130:507-512
NiO–MnO 2 /MWCNT composite was formed by a simple chemical precipitation method using a chelating agent and Ni and Mn hydroxides on MWCNT. The NiO–MnO 2 /MWCNT was pretreated by ultrasonication, followed by thermal annealing at 300 °C. The mater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88f674569fa029f1fe7d14b1d9c91d5a
https://doi.org/10.1016/j.matchemphys.2011.07.022
https://doi.org/10.1016/j.matchemphys.2011.07.022
Autor:
Seong-Hyeon Ryu, Kwang Sun Ryu
Publikováno v:
Journal of the Korean Electrochemical Society. 14:184-190
with mesoporous hollow sphere shape was synthesized by precipitation method with silica template. The synthesized has nanosized first particle and mesoporous hollow sphere shape. Silica template was removed by chemical etching method using NaOH solut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c66e04ca9664f65a735431125fec446
https://doi.org/10.5229/jkes.2011.14.3.184
https://doi.org/10.5229/jkes.2011.14.3.184
Publikováno v:
Bulletin of the Korean Chemical Society. 32:2683-2688
Silica-manganese oxides with a core-shell structure were synthesized via precipitation of manganese oxides on the core while varying the concentration of a precipitation agent. Elemental analysis, crystalline property investigation, and morphology ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6259d15f9d3bda224593805df515a16
https://doi.org/10.5012/bkcs.2011.32.8.2683
https://doi.org/10.5012/bkcs.2011.32.8.2683
Publikováno v:
Journal of the Korean Electrochemical Society. 13:264-269
active material was prepared by simple-combustion method and investigated as the cathode material for li-ion battery. The structural characterization was analyzed by X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM), re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7246545e0fe3133fe5d10d82c16784e
https://doi.org/10.5229/jkes.2010.13.4.264
https://doi.org/10.5229/jkes.2010.13.4.264
Publikováno v:
Journal of nanoscience and nanotechnology. 13(5)
The Mn0.720Ni0.175Co0.105(OH)2 precursor was co-precipitated by the Couette-Taylor reactor. The 0.3Li2MnO3 x 0.7LiMn0.60Ni0.25Co0.15O2 of the high capacity cathode material for a Li-ion battery was synthesized according to the amount of lithium exces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c588a2befe398c1cfdf5197cfae3b786
https://pubmed.ncbi.nlm.nih.gov/23858927
https://pubmed.ncbi.nlm.nih.gov/23858927
Publikováno v:
ECS Meeting Abstracts. :487-487
not Available.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0adb67ee7518bf57fa115d6cee696ec2
https://doi.org/10.1149/ma2010-03/1/487
https://doi.org/10.1149/ma2010-03/1/487