Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Hye-Young Koo"'
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 64, Iss No 2, Pp 591-595 (2019)
In this study, an oxide reduction process and a reduction-sintering process were employed to synthesize a thermoelectric alloy from three thermoelectric composite oxide powders, and the thermoelectric properties were investigated as a function of the
Externí odkaz:
https://doaj.org/article/de99b20e345c49118c77d4717dff3d69
Publikováno v:
Materials, Vol 17, Iss 6, p 1273 (2024)
This study compares the characteristics and low-temperature curing properties of pastes prepared from silver (Ag) powders synthesized by either wet powder (WP) or dry powder (DP) processing. The WP synthesis of electrode particles has the advantage o
Externí odkaz:
https://doaj.org/article/bb6f3f8481f942a691a55cee8afc8464
Publikováno v:
Polymers, Vol 14, Iss 3, p 631 (2022)
A solar-driven unmanned hazardous and noxious substance (HNS) trapping device that can absorb, evaporate, condense, and collect HNSs was prepared. The HNS trapping device was composed of three parts: a reverse piloti structure (RPS) for absorption an
Externí odkaz:
https://doaj.org/article/1265c0774bcf426d86aac3768753ac11
Publikováno v:
Polymers, Vol 14, Iss 3, p 422 (2022)
A tower air filtration system was designed in which bead air filters (BAFs) were actively rotated by a fan motor to remove particulate matter (PM) or HCHO gas. Three types of BAF, hydrophilic, hydrophobic, and hybrid, were prepared and compared for t
Externí odkaz:
https://doaj.org/article/e3cf9e5a093e4adbbbcc137d3ac6818a
Autor:
Hye Young Koo, Dahee Park
In this chapter, we will study the spray pyrolysis process, which is a bottom-up process, and examine the composite electrode powder synthesis process and properties of the core-shell structure. Generally, it is difficult to produce fine particles fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::023b67dfd4421bef49f4b7024aaa9173
https://mts.intechopen.com/articles/show/title/conductive-powder-synthesis-technology-for-improving-electrical-conductivity-by-one-pot-ultrasonic-s
https://mts.intechopen.com/articles/show/title/conductive-powder-synthesis-technology-for-improving-electrical-conductivity-by-one-pot-ultrasonic-s
Publikováno v:
Science of Advanced Materials. 13:1358-1363
The properties of a thermoelectric device depend on the thermoelectric material. Bi-Te-based thermoelectric materials consist of p-type and n-type semiconductors are characterized by an excellent dimensionless figure of merit (ZT). In this study, we
Autor:
Jin Woo Lee, Yeon Woo Kim, Hye Young Koo, Kyeong Mi Jang, Yun Chan Kang, Seungwoo Lee, Gook Hyun Ha, Min Soo Park
Publikováno v:
Powder Metallurgy. 65:13-21
Three-dimensional WC–Co hardmetal samples were fabricated using WC–Co nanopowder via two methods: selective laser melting (SLM) and fused deposition modelling (FDM). The carbon loss and phase trans...
Publikováno v:
Materials, Vol 12, Iss 20, p 3389 (2019)
There is significant interest in developing novel absorbents for hazardous material cleanup. Iron oxide-coated melamine formaldehyde sponge (MFS/IO) absorbents with various IO layer thicknesses were synthesized. Various other absorbents were also syn
Externí odkaz:
https://doaj.org/article/f7d6cc2f064946b9a9d929c389273136
Publikováno v:
Materials, Vol 12, Iss 18, p 2865 (2019)
In this work, we report a feasible fabrication of NiCo2S4 nanotree-like structures grown from the Ni nanoparticle (NP)-doped reduced graphene oxides (Ni-rGO) by a simple hydrothermal method. It is found that the presence of Ni NPs on the surface of t
Externí odkaz:
https://doaj.org/article/1a1f92898f6c48fc9a16bbf954af2116
Publikováno v:
Materials, Vol 12, Iss 8, p 1245 (2019)
One-pot synthesis of mixed-valence manganese oxide (MnOx)/potassium ion-doped reduced graphene oxide (rGO) composites for efficient electrochemical supercapacitors is introduced. Using manganese nitrate and potassium permanganate as co-precursors for
Externí odkaz:
https://doaj.org/article/521e77cab2534a14acb9b3cad849be42