Magnetic phase transition of mechanically alloyed single sample Co0.5Ni0.5Fe2O4
The parallel evolutional relationship between microstructural properties and magnetic and electrical properties was elucidated through this study. A Co0.5Ni0.5Fe2O4 rod sample was prepared via high energy ball milling and subsequent moulding into a nano-sized compacted powder. This single sample was...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier B.V.
2019
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| Online Access: | http://umpir.ump.edu.my/id/eprint/26065/1/Magnetic%20phase%20transition%20of%20mechanically%20alloyed%20single%20sample.pdf |
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| author | Zhi, Huang Low Ismayadi, Ismail Mohd Shamsul Ezzad, Shafie Idza Riati, Ibrahim Ertuğrul, Mehmet Raba’ah Syahidah, Azis Norlaily, Mohd Saiden Intan Helina, Hasan Fadzidah, Mohd Idris Rodziah, Nazlan |
| author_facet | Zhi, Huang Low Ismayadi, Ismail Mohd Shamsul Ezzad, Shafie Idza Riati, Ibrahim Ertuğrul, Mehmet Raba’ah Syahidah, Azis Norlaily, Mohd Saiden Intan Helina, Hasan Fadzidah, Mohd Idris Rodziah, Nazlan |
| author_sort | Zhi, Huang Low |
| collection | UMP |
| description | The parallel evolutional relationship between microstructural properties and magnetic and electrical properties was elucidated through this study. A Co0.5Ni0.5Fe2O4 rod sample was prepared via high energy ball milling and subsequent moulding into a nano-sized compacted powder. This single sample was sintered through 10 cycles at different sintering temperatures in the range of 500 °C–1400 °C. After each sintering, the sample was characterized for its phase, microstructural, density, magnetic and electrical properties using XRD, SEM, B-H tracer, Curie temperature measurement and two probes method. An integrated study of microstructural properties with elevating sintering temperature would point to the existence of three stages of sintering, which involved atomic, interfaces (lattice and boundaries), and volume diffusions respectively. Three distinct shape-differentiated groups of B–H hysteresis loops were observed. The existence of these groups was associated with microstructural properties such as phase purity, volume fraction of disordered phase or grain boundaries, and grain size. In terms of average grain size, from 48.25 nm to 71.93 nm, a weak paramagnetic behaviour was observed; while from 83.65 nm to 374.79 nm, a relatively square-shaped hysteresis loops with moderate ferromagnetic behaviours were observed. The occurrences of erect and well-defined sigmoid-shape were observable when there were sufficiently high single-phase purity and crystallinity, where the average grain size was in the range of 964.73 nm–11215.91 nm. The critical grain size of 186.75 nm was found by plotting average grain size against coercivity, suggesting the number of single-domain particles was reduced, and the number of multi-domain particles was increased by increasing sintering temperature. The electrical resistivity variations were strongly related to the microstructural properties. |
| first_indexed | 2024-03-06T12:36:06Z |
| format | Article |
| id | UMPir26065 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:36:06Z |
| publishDate | 2019 |
| publisher | Elsevier B.V. |
| record_format | dspace |
| spelling | UMPir260652019-11-27T04:07:10Z http://umpir.ump.edu.my/id/eprint/26065/ Magnetic phase transition of mechanically alloyed single sample Co0.5Ni0.5Fe2O4 Zhi, Huang Low Ismayadi, Ismail Mohd Shamsul Ezzad, Shafie Idza Riati, Ibrahim Ertuğrul, Mehmet Raba’ah Syahidah, Azis Norlaily, Mohd Saiden Intan Helina, Hasan Fadzidah, Mohd Idris Rodziah, Nazlan QC Physics QH Natural history TN Mining engineering. Metallurgy TP Chemical technology The parallel evolutional relationship between microstructural properties and magnetic and electrical properties was elucidated through this study. A Co0.5Ni0.5Fe2O4 rod sample was prepared via high energy ball milling and subsequent moulding into a nano-sized compacted powder. This single sample was sintered through 10 cycles at different sintering temperatures in the range of 500 °C–1400 °C. After each sintering, the sample was characterized for its phase, microstructural, density, magnetic and electrical properties using XRD, SEM, B-H tracer, Curie temperature measurement and two probes method. An integrated study of microstructural properties with elevating sintering temperature would point to the existence of three stages of sintering, which involved atomic, interfaces (lattice and boundaries), and volume diffusions respectively. Three distinct shape-differentiated groups of B–H hysteresis loops were observed. The existence of these groups was associated with microstructural properties such as phase purity, volume fraction of disordered phase or grain boundaries, and grain size. In terms of average grain size, from 48.25 nm to 71.93 nm, a weak paramagnetic behaviour was observed; while from 83.65 nm to 374.79 nm, a relatively square-shaped hysteresis loops with moderate ferromagnetic behaviours were observed. The occurrences of erect and well-defined sigmoid-shape were observable when there were sufficiently high single-phase purity and crystallinity, where the average grain size was in the range of 964.73 nm–11215.91 nm. The critical grain size of 186.75 nm was found by plotting average grain size against coercivity, suggesting the number of single-domain particles was reduced, and the number of multi-domain particles was increased by increasing sintering temperature. The electrical resistivity variations were strongly related to the microstructural properties. Elsevier B.V. 2019-12 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/26065/1/Magnetic%20phase%20transition%20of%20mechanically%20alloyed%20single%20sample.pdf Zhi, Huang Low and Ismayadi, Ismail and Mohd Shamsul Ezzad, Shafie and Idza Riati, Ibrahim and Ertuğrul, Mehmet and Raba’ah Syahidah, Azis and Norlaily, Mohd Saiden and Intan Helina, Hasan and Fadzidah, Mohd Idris and Rodziah, Nazlan (2019) Magnetic phase transition of mechanically alloyed single sample Co0.5Ni0.5Fe2O4. Results in Physics, 15. pp. 1-9. ISSN 2211-3797. (Published) https://doi.org/10.1016/j.rinp.2019.102683 https://doi.org/10.1016/j.rinp.2019.102683 |
| spellingShingle | QC Physics QH Natural history TN Mining engineering. Metallurgy TP Chemical technology Zhi, Huang Low Ismayadi, Ismail Mohd Shamsul Ezzad, Shafie Idza Riati, Ibrahim Ertuğrul, Mehmet Raba’ah Syahidah, Azis Norlaily, Mohd Saiden Intan Helina, Hasan Fadzidah, Mohd Idris Rodziah, Nazlan Magnetic phase transition of mechanically alloyed single sample Co0.5Ni0.5Fe2O4 |
| title | Magnetic phase transition of mechanically alloyed single sample Co0.5Ni0.5Fe2O4 |
| title_full | Magnetic phase transition of mechanically alloyed single sample Co0.5Ni0.5Fe2O4 |
| title_fullStr | Magnetic phase transition of mechanically alloyed single sample Co0.5Ni0.5Fe2O4 |
| title_full_unstemmed | Magnetic phase transition of mechanically alloyed single sample Co0.5Ni0.5Fe2O4 |
| title_short | Magnetic phase transition of mechanically alloyed single sample Co0.5Ni0.5Fe2O4 |
| title_sort | magnetic phase transition of mechanically alloyed single sample co0 5ni0 5fe2o4 |
| topic | QC Physics QH Natural history TN Mining engineering. Metallurgy TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/26065/1/Magnetic%20phase%20transition%20of%20mechanically%20alloyed%20single%20sample.pdf |
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