Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Gook-Hyun Ha"'
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:
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c358f1d39ae745f8972f0140fee1b1ce
https://doi.org/10.1166/sam.2021.3991
https://doi.org/10.1166/sam.2021.3991
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...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5eb15c9a1adb2dd53a054c4328d2e10d
https://doi.org/10.1080/00325899.2021.1937868
https://doi.org/10.1080/00325899.2021.1937868
Publikováno v:
Journal of Nanoscience and Nanotechnology. 20:427-432
The anisotropic structure of Bi₂Te₃-type thermoelectric materials makes them prone to mechanical vulnerabilities and inconsistent electrical and thermal properties according to microstructural orientation. In this study, sintered BiSbTe bodies we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3001d6988d61696211963ff056b9e0e
https://doi.org/10.1166/jnn.2020.17286
https://doi.org/10.1166/jnn.2020.17286
Publikováno v:
Key Engineering Materials. 773:145-151
The Bi–Te thermoelectric system shows an excellent figure of merit (ZT) near room temperature. Research on increasing the ZT value for n‑type Bi–Te is imperative because the thermoelectric properties of this compound are inferior to those of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c9685a12e85752009805a8db5288196
https://doi.org/10.4028/www.scientific.net/kem.773.145
https://doi.org/10.4028/www.scientific.net/kem.773.145
Publikováno v:
Journal of nanoscience and nanotechnology. 20(1)
The anisotropic structure of Bi₂Te₃-type thermoelectric materials makes them prone to mechanical vulnerabilities and inconsistent electrical and thermal properties according to microstructural orientation. In this study, sintered BiSbTe bodies we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::3247528a84d9119cf310ae6df773aafe
https://pubmed.ncbi.nlm.nih.gov/31383189
https://pubmed.ncbi.nlm.nih.gov/31383189
Publikováno v:
Korean Journal of Metals and Materials. 54:743-751
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63dd3832141d1b6e136cdebf5728e547
https://doi.org/10.3365/kjmm.2016.54.10.743
https://doi.org/10.3365/kjmm.2016.54.10.743
Publikováno v:
Journal of Nanoscience and Nanotechnology. 16:5233-5238
In order to establish thinner dielectric layers in thick film electronic components such as MLCC (Multilayer ceramic capacitor), BaTiO3 nanoparticles have been utilized. However, studies on the synthesis of nanoparticles smaller than 20 nm, the chara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2555b38daa58bb742379f647b1fda7fb
https://doi.org/10.1166/jnn.2016.12204
https://doi.org/10.1166/jnn.2016.12204
Autor:
Gil-Geun Lee, Gook-Hyun Ha
Publikováno v:
Metals and Materials International. 22:260-266
The effects of mechanical milling on the carbothermal reduction of oxidized WC/Co hardmetal scrap with solid carbon were examined. Mixed powders were manufactured by milling the WC/Co hard metal scrap oxide and carbon powder in either a tumbler-ball
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a00fc71f81cb226a2e921a653d5476c6
https://doi.org/10.1007/s12540-016-5409-y
https://doi.org/10.1007/s12540-016-5409-y
Publikováno v:
Journal of Korean Powder Metallurgy Institute. 22:254-259
related compounds show the best thermoelectric properties at room temperature. However, n-type showed no improvement on ZT values. To improve the thermolectric propterties of n-type , this research has Cu-doped n-type powder. This study focused on ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7139946ca28b912c0cbd21e5caa4f43f
https://doi.org/10.4150/kpmi.2015.22.4.254
https://doi.org/10.4150/kpmi.2015.22.4.254