Some Kinetic Peculiarities of Formation of High-Entropy Oxide Co0.2Ni0.2Cu0.2Mg0.2Zn0.2O
| Authors | M.P. Semenko |
| Affiliations |
Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine |
| Е-mail | smp@univ.kiev.ua |
| Issue | Volume 16, Year 2024, Number 4 |
| Dates | Received 14 May 2024; revised manuscript received 21 August 2024; published online 27 August 2024 |
| Citation | M.P. Semenko, J. Nano- Electron. Phys. 16 No 4, 04034 (2024) |
| DOI | https://doi.org/10.21272/jnep.16(4).04034 |
| PACS Number(s) | 81.05.Zx, 05.70.Ce, 61.43. – j |
| Keywords | High-entropy oxide, Kinetic parameter, X-ray diffraction (19) . |
| Annotation |
The kinetics of the formation of high-entropy oxide Co0.2Ni0.2Cu0.2Mg0.2Zn0.2O from the initial powder mixture of oxide components was studied for the first time by X-ray diffraction. It has been shown that the dissolution of CuO oxide at the last stage of the formation of this oxide can be described using the Johnson- Mell-Avrami model. Based on the analysis of the results obtained under isothermal conditions, the kinetic parameters of the process were estimated. The value of the Avrami index indicates that the formation process at this stage occurs without nucleation by the diffusion mechanism with a change in the nature of diffusion as the composition approaches the nominal one. |
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