The paper presents results of investigation of the influence of mechanical activation of shungite, a Russian natural mineral rich in silica and carbon, on its sintering behavior. The mechanical activation of the starting powder was performed in a high-energy ball mill in time intervals from 0 to 480 minutes. The phase composition of the starting mixtures and sintered samples was analyzed by the X-ray diffraction method. The scanning electron microscopy was performed in order to determine changes in the microstructure. Sintering was performed at various temperatures for 2 h, in an Ar and vacuum atmosphere. Dielectric properties of the sintered samples were measured in the frequency range from 1 to 500 MHz. The obtained results indicate that sintered shungite powder is a good candidate for applications as an absorber of electromagnetic waves in microwave engineering.
Keywords:
sintering / shungite
Source:
Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018, 2018, 94-94
TY - CONF
AU - Obradović, Nina
AU - Gigov, Mihajlo
AU - Đorđević, Aleksandar
AU - Kern, Frank
AU - Dmitrović, Svetlana
AU - Matović, Branko
AU - Đorđević, Antonije
AU - Pavlović, Vladimir B.
PY - 2018
UR - https://dais.sanu.ac.rs/123456789/3667
AB - The paper presents results of investigation of the influence of mechanical activation of shungite, a Russian natural mineral rich in silica and carbon, on its sintering behavior. The mechanical activation of the starting powder was performed in a high-energy ball mill in time intervals from 0 to 480 minutes. The phase composition of the starting mixtures and sintered samples was analyzed by the X-ray diffraction method. The scanning electron microscopy was performed in order to determine changes in the microstructure. Sintering was performed at various temperatures for 2 h, in an Ar and vacuum atmosphere. Dielectric properties of the sintered samples were measured in the frequency range from 1 to 500 MHz. The obtained results indicate that sintered shungite powder is a good candidate for applications as an absorber of electromagnetic waves in microwave engineering.
PB - Belgrade : Materials Research Society of Serbia
C3 - Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018
T1 - Shungite - a Russian mineral: possible application as a microwave absorber
SP - 94
EP - 94
UR - https://hdl.handle.net/21.15107/rcub_dais_3667
ER -
@conference{
author = "Obradović, Nina and Gigov, Mihajlo and Đorđević, Aleksandar and Kern, Frank and Dmitrović, Svetlana and Matović, Branko and Đorđević, Antonije and Pavlović, Vladimir B.",
year = "2018",
abstract = "The paper presents results of investigation of the influence of mechanical activation of shungite, a Russian natural mineral rich in silica and carbon, on its sintering behavior. The mechanical activation of the starting powder was performed in a high-energy ball mill in time intervals from 0 to 480 minutes. The phase composition of the starting mixtures and sintered samples was analyzed by the X-ray diffraction method. The scanning electron microscopy was performed in order to determine changes in the microstructure. Sintering was performed at various temperatures for 2 h, in an Ar and vacuum atmosphere. Dielectric properties of the sintered samples were measured in the frequency range from 1 to 500 MHz. The obtained results indicate that sintered shungite powder is a good candidate for applications as an absorber of electromagnetic waves in microwave engineering.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018",
title = "Shungite - a Russian mineral: possible application as a microwave absorber",
pages = "94-94",
url = "https://hdl.handle.net/21.15107/rcub_dais_3667"
}
Obradović, N., Gigov, M., Đorđević, A., Kern, F., Dmitrović, S., Matović, B., Đorđević, A.,& Pavlović, V. B.. (2018). Shungite - a Russian mineral: possible application as a microwave absorber. in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018
Belgrade : Materials Research Society of Serbia., 94-94.
https://hdl.handle.net/21.15107/rcub_dais_3667
Obradović N, Gigov M, Đorđević A, Kern F, Dmitrović S, Matović B, Đorđević A, Pavlović VB. Shungite - a Russian mineral: possible application as a microwave absorber. in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018. 2018;:94-94.
https://hdl.handle.net/21.15107/rcub_dais_3667 .
Obradović, Nina, Gigov, Mihajlo, Đorđević, Aleksandar, Kern, Frank, Dmitrović, Svetlana, Matović, Branko, Đorđević, Antonije, Pavlović, Vladimir B., "Shungite - a Russian mineral: possible application as a microwave absorber" in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018 (2018):94-94,
https://hdl.handle.net/21.15107/rcub_dais_3667 .
