Abstract
Ni–Zn ferrite, Ni0.3Zn0.7Fe2O4, with a wide variation of grain sizes has been prepared via high energy ball milling through two different sintering routes: multi-sample sintering and single-sample sintering. The parallel relationships between evolving microstructural properties and AC magnetic response parameters were investigated using a FEI Nova NanoSEM 50 series and an Agilent Model HP4291B Impedance/Material Analyzer respectively. SEM micrographs showed larger grain size as the sintering temperature increased, consequently increasing the number of multi-domain grains. The AC magnetic response parameters belong to three groups with strongly, moderately and weakly ferromagnetic behavior respectively. Single-sample sintering and multi-sample sintering evolution yield quite similar permeability-grain size relationship trends. The permeability from both sintering routes is influenced by several factors which are degree of crystallinity, dominant magnetization process (ease of domain walls movement in multi-domain grains or spin rotation in single-domain grains) and large enough grain size which surpasses the critical grain size for transition from single-domain to multi-domain grains.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
