Microstructure and Morphological Properties of Granulated Mg3Sb2 Thermoelectric Material
| Authors | F. Omonboev1, A.M. Tishabayevich2 |
| Affiliations |
1Andijan State University, 170100 Andijan, Uzbekistan 2National University of Uzbekistan named after Mirzo Ulugbek, 700174 Tashkent, Uzbekistan |
| Е-mail | omonboyevfl@gmail.com |
| Issue | Volume 17, Year 2025, Number 3 |
| Dates | Received 04 April 2025; revised manuscript received 17 June 2025; published online 27 June 2025 |
| Citation | F. Omonboev, A.M. Tishabayevich, J. Nano- Electron. Phys. 17 No 3, 03003 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(3).03003 |
| PACS Number(s) | 81.05.Ea, 81.30.Mh, 81.05.Fb, 81.05.Bx, 61.72. – y, 82.35.Np, 81.15.Mx, 81.05.Mh, 81.05.Xj, 81.05.Xj, 61.72.Mm, 73.63.Bd, 61.46.Df, 81.07.Wx |
| Keywords | Granulated Mg3Sb2 nanosemiconductor, Thermoelectric material, Microstructure (21) , Morphology (8) , Mg4Sb2O9, Mg(Sb2O5)2, MgO2, SbO3 compounds, Oxidized nanocomposite coating, Heat-resistant ceramic substrate, Thermal bonding, Interparticle boundary regions, Polycrystalline structure. |
| Annotation |
This article presents the results of studying the microstructure and morphological properties of a rod-shaped granular Mg3Sb2 nanosemiconductor thermoelectric material prepared by resistance annealing. This method is based on placing a mixture of Mg3Sb2 particles prepared using 70 % ethyl alcohol on a tubular heat-resistant substrate, for example, a ceramic substrate, and heating the particles using a resistance annealing. The Mg3Sb2 semiconductor thermoelectric material obtained by resistance annealing consists of a granular particle assembly and interparticle boundary regions formed between them, forming a structure characteristic of polycrystalline. The particle assembly core consists of Mg3Sb2, and its surface regions are composed of oxidized nanocomposite coatings such as Mg4Sb2O9, Mg(Sb2O5)2, MgO2, SbO3. According to the analysis, the amount of oxygen atoms is distributed from the core of the Mg3Sb2 compound to the surface, forming an oxidized nanocomposite coating on the surface areas. |
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List of References |
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