Structural Study on Nano-crystals of Spinel Mgx-Zn1-X-Fe2O4 Ferrite with and without Calcination
| Autor: | Mussawar Ahmad, Yasin Khan, Abdul Ghaffar, Muhammad Shafa, Muhammad Yasin Naz |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Technology
Materials science Coprecipitation Chemicals: Manufacture use etc TP1-1185 02 engineering and technology Crystal structure engineering.material calcination 01 natural sciences law.invention crystal structures law 0103 physical sciences General Materials Science Calcination co-precipitation Physical and Theoretical Chemistry Ball mill 010302 applied physics Nano crystal Chemical technology Spinel TP200-248 spinel ferrites 021001 nanoscience & nanotechnology Condensed Matter Physics Chemical engineering Mechanics of Materials engineering Ferrite (magnet) ball milling 0210 nano-technology 06.30.bp 06.30.dr |
| Zdroj: | High Temperature Materials and Processes, Vol 37, Iss 1, Pp 89-95 (2018) |
| ISSN: | 2191-0324 0334-6455 |
| DOI: | 10.1515/htmp-2016-0037 |
| Popis: | This study investigated a series of single phase Mgx-Zn1-x-Fe2O4 spinel ferrites, prepared using co-precipitation technique and sintered at 600 °C. The X-ray diffraction (XRD) patterns of the ferrite samples revealed the formation of impurity free single phase spinel structures. The formation of ferrite phases and face centered cubic structures was confirmed at Bragg angles of 35.9°, 54.3° and 62.7°. The lattice parameter increased with an increase in ‘x’ content in the ferrite composition. The grain size, estimated from SEM micrographs, was found in the range of 0.5–2 mµ. The lattice parameter of the ferrite samples exhibited an initial increase upto a certain extent, thereafter suddenly dropped down due to fracturing and re-welding processes. Overall, the lattice parameter ‘a’ varied from 0.80 to 0.85 nm, crystallite size from 34 to 80 nm, unit cell volume from 0.528 × 10−21 to 0.62 × 10−21 cm3 and X-ray density from 5.8 to 4.5 g/cm3. |
| Databáze: | OpenAIRE |
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