Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Sang-Hye Lee"'
Autor:
Sang-Hye Lee, Jae-Seung Roh
Publikováno v:
Crystals, Vol 14, Iss 2, p 122 (2024)
In this study, changes in the microstructure of coal-tar pitch (CTP) during successive processes, including pyrolysis, polycondensation, and crystallization, were examined in connection with the resulting variations in structure factors, as measured
Externí odkaz:
https://doaj.org/article/be385e48cf984fd5b833d417d2838380
Publikováno v:
Materials, Vol 17, Iss 2, p 387 (2024)
In this study, carbon blocks were fabricated using isotropic coke and coal tar pitch as raw materials, with a variation in pressure during cold isostatic pressing (CIP). The CIP pressure was set to 50, 100, 150, and 200 MPa, and the effect of the CIP
Externí odkaz:
https://doaj.org/article/fbc68f249fd148bf9927ffbeddbac7b9
Publikováno v:
Applied Sciences, Vol 14, Iss 2, p 772 (2024)
In this study, isotropic coke and coal tar pitch were subjected to compression molding while varying the compression pressure and holding time. As a result, carbon blocks were fabricated, and their mechanical properties and microstructure were analyz
Externí odkaz:
https://doaj.org/article/cef28fc344444f42ad6c9d2e5d30d4d0
Publikováno v:
Materials, Vol 16, Iss 9, p 3543 (2023)
The purpose of this study is to improve the oxidation resistance of graphite blocks after graphitization at 2800 °C by introducing a curing process of phenolic resin, used as a binder to control the pore size. Using the methylene index obtained from
Externí odkaz:
https://doaj.org/article/46add4f28f0f4e6cb0843cc6d9410cd6
Publikováno v:
Materials, Vol 15, Iss 9, p 3259 (2022)
In the present study, graphite blocks were fabricated using synthetic graphite scrap and phenolic resin, and the effect of the heating rate during carbonization on their mechanical and electrical characteristics was examined. While varying the heatin
Externí odkaz:
https://doaj.org/article/78117e1aa658401a8f95793f670bb1ef
Publikováno v:
Materials, Vol 14, Iss 16, p 4711 (2021)
Milled polyacrylonitrile (PAN)-based Carbon Fibers (mPCFs) were prepared from PAN-based carbon fibers by using a ball milling process. The resulting structural changes in the mPCFs were analyzed by correlating the analytical results obtained by X-ray
Externí odkaz:
https://doaj.org/article/272073ca94d648a98f406d8670201754
Publikováno v:
Crystals, Vol 11, Iss 2, p 153 (2021)
In the present study, carbon black activated by CO2 gas was examined through XRD analysis, especially with regard to changes in its structural parameters. Based on the results, its activation process was thoroughly analyzed. The activation process wa
Externí odkaz:
https://doaj.org/article/91ceb51e72c942b9b506109cdc234cba
Publikováno v:
Carbon. 208:443-451
Publikováno v:
Journal of Korean Powder Metallurgy Institute. 30:35-40
Publikováno v:
Carbon Letters. 31:1317-1326
The present study analyzed the pore formation and development process in carbon black that was activated by CO2 gas and the effect of the burn-off (BO) ratio on the process, particularly based on changes in the surface shape and internal microstructu