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Wyszukujesz frazę "Byeon, Jai-Won" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Effect of Process Variables on Friction Stirred Microstructure and Surface Hardness of AZ31 Magnesium Alloy
Autorzy:
Kim, Jae-Yeon
Hwang, Jung-Woo
Lee, Seung-Mi
Hyun, Chang-Young
Park, Ik-Keun
Byeon, Jai-Won
Powiązania:
https://bibliotekanauki.pl/articles/355106.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
friction stir process
AZ31 alloy
diamond particle
process variable
grain size
Opis:
Effects of various friction stir processing (FSP) variables on the microstructural evolution and microhardness of the AZ31 magnesium alloy were investigated. The processing variables include rotational and travelling speed of the tool, kind of secondphase (i.e., diamond, Al2 O3 , and ZrO2 ) and groove depth (i.e., volume fraction of second phase). Grain size, distribution of second phase particle, grain texture, and microhardness were analyzed as a function of the FSP process variables. The FSPed AZ31 com-posites fabricated with a high heat input condition showed the better dispersion of particle without macro defect. For all composite specimens, the grain size decreased and the microhardness increased regardless of the grooved depth compared with that of the FSPed AZ31 without strengthening particle, respectively. For the AZ31/diamond composite having a grain size of about 1 μm, microhardness (i.e., about 108 Hv) was about two times higher than that of the matrix alloy (i.e., about 52 Hv). The effect of second phase particle on retardation of grain growth and resulting hardness increase was discussed.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 3; 907-911
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Degradation Behavior of Ag Nanowire-Coated Transparent Conductive Film
Autorzy:
Kim, Jae-Yeon
Kim, Hye-Young
Kim, Hyun-Su
Yoo, Ki-Tae
Yang, Won-Jon
Byeon, Jai-Won
Powiązania:
https://bibliotekanauki.pl/articles/354224.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
silver nanowire
isothermal degradation
electrical resistance
overcoating
Opis:
For the reliable applications of silver nanowires, AgNW, which is used as a conductive transparent film in electronic devices, the isothermal degradation behaviors of AgNW films with and without overcoating were investigated. Accelerated isothermal degradation was performed as a function of temperature, time, and atmosphere. Electrical resistance and optical transmittance were measured and correlated with the microstructural damages, such as formation of oxide particles and fragmentations of AgNW, which were quantitatively determined from the scanning electron micrographs. The overcoating retarded the formation of oxide particles and subsequent fragmentations as well as resulting degradation in electrical resistance without affecting the optical transmittance.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 3; 913-916
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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