Zobrazeno 1 - 10
of 68
pro vyhledávání: '"In Wook Na"'
Publikováno v:
Metals, Vol 14, Iss 2, p 244 (2024)
Stellite 6 is a Co-based alloy with excellent wear and corrosion resistance, resulting in it frequently being used as a hard-facing material. The main defect that occurs in the hard-facing process is the peeling of the hard-facing layer, which is cau
Externí odkaz:
https://doaj.org/article/8751ede44ef24afa898f0494f5f9b8f8
Abstract The recent discovery of seemingly-inexhaustible CH4 emissions to the hydrosphere through cold seeps and hydrothermal vents supports the occurrence of abiotic H2 and CH4. Abiotic H2 is known to be formed by the reduction of water during serpe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e06875c60ab4e0c84a0a38f16a42e97f
https://doi.org/10.21203/rs.3.rs-2850647/v1
https://doi.org/10.21203/rs.3.rs-2850647/v1
Publikováno v:
International Journal of Hydrogen Energy. 47:17673-17682
Autor:
Julien O. Fadonougbo, Jin-Yoo Suh, Tae-Wook Na, Byeong-Chan Suh, Han Jin Kim, Hyung-Ki Park, Chang Dong Yim
Publikováno v:
International Journal of Hydrogen Energy. 47:3939-3947
In this investigation, we report the cyclic performance, microstructure and thermal properties of near eutectic Mg–Ni alloys with different Ni contents (4.4, 11.3 and 16.3 at%). The starting cast ingots are mechanically chipped to flakes of about 4
Autor:
Ki Beom Park, Julien O. Fadonougbo, Jong-Seong Bae, Gyu Byeong Kang, Jong In Choi, Young Do Kim, Tae-Wook Na, Hyung-Ki Park
Publikováno v:
Metals; Volume 12; Issue 12; Pages: 2093
The nature of TiFe-based surface oxides and their evolution during conventional activation heat treatment were investigated in this study. The as-prepared TiFe alloy was found to possess an initial composite Ti and Fe amorphous surface oxide layer of
Autor:
Hui-Jung Lee, Hye-Min Park, Seok-Hong Min, Jin-Seung Jung, Yong-Su Jo, Young Keun Kim, Seung-Min Yang, Tae-Wook Na
Publikováno v:
ACS Omega, Vol 6, Iss 42, Pp 27842-27850 (2021)
ACS Omega
ACS Omega
Nickel (Ni) nanoparticles (NPs) prepared through vapor-phase synthesis (VPS) are preferred for multilayer ceramic capacitor electrodes due to their high purity and crystallinity advantages. Agglomerated Ni NPs are usually generated using VPS but are
Autor:
Hyeon-Tae Im, Julien O. Fadonougbo, Jae Young Park, Kwangsuk Park, Ki Beom Park, Bosung Seo, Nong-Moon Hwang, Tae-Wook Na, Hyung-Ki Park
Publikováno v:
Metals and Materials International. 28:1778-1782
This study examines the insulation coating technology of Fe–Si–Cr powder via selective oxidation annealing, which oxidizes elements selectively by controlling the oxidation potential. The study calculated the oxidation driving force of Fe, Si, an
Autor:
Julien O. Fadonougbo, Won-Seok Ko, Ki Beom Park, Jeong-Hun Lee, Chang-Soo Park, Tae-Wook Na, Hyun-Su Kang, Hyung-Ki Park
Publikováno v:
International Journal of Hydrogen Energy. 46:30780-30789
This study investigated how Fe substitution with Ni, Co, Cu, Mn, and Cr affected the first hydrogenation behavior of air-exposed TiFe-based hydrogen storage alloys. The alloy ingots were crushed into powders and exposed to air for 1 h to analyze the
Publikováno v:
Metals, Vol 9, Iss 11, p 1154 (2019)
In this study, oxygen reduction behavior of TiH2 powders during dehydrogenation process was investigated based on thermodynamics. During the hydrogenation−dehydrogenation (HDH) method to fabricate Ti powder, TiH2 was formed from a Ti sponge through
Externí odkaz:
https://doaj.org/article/fb18df79a16949369de1dbcdb19e254e
Autor:
Yong-Keun Ahn, Nong-Moon Hwang, Taeyoung Kim, Hyung-Seok Shim, Yong-Kwon Jeong, Tae-Wook Na, Heung Nam Han
Publikováno v:
Metals and Materials International. 27:5114-5120
Penetrating morphologies at the growth front of abnormally-growing Goss grains in Fe–3%Si steel was examined in view of the possibility that they are the two-dimensional section of the solid-state wetting (SSW) along the triple junction line. To ob