UPM Institutional Repository

Grain growth effects on magnetic properties of Ni0.6Zn0.4Fe2O4 material prepared using mechanically alloyed nanoparticles


Mustaffa, Muhammad Syazwan and Abdullah, Nor Hapishah and Azis, Raba'ah Syahidah and Abbas, Zulkifly and Hamidon, Mohd Nizar (2018) Grain growth effects on magnetic properties of Ni0.6Zn0.4Fe2O4 material prepared using mechanically alloyed nanoparticles. Results in Physics, 9. 842 - 850. ISSN 2211-3797


The effect of grain growth via sintering temperature on some magnetic properties is reported in this research. Ni0.6Zn0.4Fe2O4 nanoparticles were mechanically alloyed for 6 h and the sintering process starting from 600 to 1200 °C with 25 °C increment with only one sample subjected to all sintering scheme. The resulting change in the material was observed after each sintering. Single phase has been formed at 600 °C and above and the intensity peaks increased with sintering temperature as well as crystallinity increment. The morphological studies showed grain size increment as the sintering temperature increased. Moreover, the density increased while the porosity decreased with increasing sintering temperature. The saturation induction, Bs increased with the increased of grain size. On the other hand, the coercivity-vs-grain size plot reveals the critical single-domain-to-multidomain grain size to be about ∼400 nm. The initial permeability, μi value was increased with grain size enhancement. The microstructural grain growth, as exposed for the first time by this research, is shown as a process of multiple activation energy barriers.

Download File

[img] Text
Grain growth effects on magnetic properties .pdf

Download (179kB)

Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.1016/j.rinp.2018.03.054
Publisher: Elsevier
Keywords: Mechanical alloying (MA); Magnetic properties; Single sample sintering (SSS); Ferrites
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 17 Mar 2021 02:43
Last Modified: 17 Mar 2021 02:43
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.rinp.2018.03.054
URI: http://psasir.upm.edu.my/id/eprint/72857
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item