Formation of a ZnO–C Composite with a Nanocrystalline Structure
- Authors: Abduev A.K.1, Akhmedov A.K.1, Asvarov A.S.1,2, Rabadanov K.S.2, Emirov R.M.3
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Affiliations:
- Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences
- Analytical Center for Collective Use, Dagestan Scientific Center, Russian Academy of Sciences
- Dagestan State University
- Issue: Vol 64, No 5 (2019)
- Pages: 666-673
- Section: Physical Science of Materials
- URL: https://journals.rcsi.science/1063-7842/article/view/203410
- DOI: https://doi.org/10.1134/S1063784219050025
- ID: 203410
Cite item
Abstract
The formation of a nanocrystalline composite of a ZnO–C system with simultaneous mechanical activation of a mixture of zinc oxide and graphite powders in a ball mill in an inert atmosphere is studied. It is shown that the presence of graphite reduces the efficiency of dispersing ZnO crystallites. The following principal dispersion mechanisms of graphite are determined: the fragmentation of particles due to the impact of grinding bodies and the exfoliation of flakes by submicron zinc oxide particles. It has been established that a composite system is formed as a result of the prolonged mechanical activation effect on the ZnO–graphite mixture, which is a nanocrystalline zinc oxide powder with uniformly distributed inclusions of micro- and nanocrystalline graphite, turbostratic carbon, exfoliated graphene structures, and amorphous carbon.
About the authors
A. Kh. Abduev
Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences
Author for correspondence.
Email: cht-if-ran@mail.ru
Russian Federation, Makhachkala, 367015
A. K. Akhmedov
Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences
Email: cht-if-ran@mail.ru
Russian Federation, Makhachkala, 367015
A. Sh. Asvarov
Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences; Analytical Center for Collective Use, Dagestan Scientific Center, Russian Academy of Sciences
Email: cht-if-ran@mail.ru
Russian Federation, Makhachkala, 367015; Makhachkala, 367032
K. Sh. Rabadanov
Analytical Center for Collective Use, Dagestan Scientific Center, Russian Academy of Sciences
Email: cht-if-ran@mail.ru
Russian Federation, Makhachkala, 367032
R. M. Emirov
Dagestan State University
Email: cht-if-ran@mail.ru
Russian Federation, Makhachkala, 367032