Y sub(3)Fe sub(5)O sub(12) nanoparticulate garnet ferrites: Comprehensive study on synthesis and characterization fabricated by various routes

The effects of synthesis methods such as sol-gel (SG), self combustion (SC) and modified conventional mixed oxide (MCMO) on the structure, morphology and magnetic properties of the (Y sub(3)Fe sub(5)O sub(12)) garnet ferrites have been studied in the present work. The samples of Y sub(3)Fe sub(5)O s...

Full description

Saved in:
Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2014-11, Vol.368, p.393-400
Main Authors: Akhtar, Majid Niaz, Khan, Muhammad Azhar, Ahmad, Mukhtar, Murtaza, G, Raza, Rizwan, Shaukat, S F, Asif, M H, Nasir, Nadeem, Abbas, Ghazanfar, Nazir, M S, Raza, M R
Format: Article
Language:English
Subjects:
Computer networks
Ferrites
Garnets
Routing (telecommunications)
Scanning electron microscopy
Sintering
Sol gel process
Transmission electron microscopy
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of synthesis methods such as sol-gel (SG), self combustion (SC) and modified conventional mixed oxide (MCMO) on the structure, morphology and magnetic properties of the (Y sub(3)Fe sub(5)O sub(12)) garnet ferrites have been studied in the present work. The samples of Y sub(3)Fe sub(5)O sub(12) were sintered at 950 [degrees]C and 1150 [degrees]C (by SG and SC methods). For MCMO route the sintering was done at 1350 [degrees]C for 6 h. Synthesized samples prepared by various routes were investigated using X-ray diffraction (XRD) analysis, Field emission scanning electron microscopy (FESEM), Impedance network analyzer and transmission electron microscopy (TEM). The structural analysis reveals that the samples are of single phase structure and shows variations in the particle sizes and cells volumes, prepared by various routes. FESEM and TEM images depict that grain size increases with the increase of sintering temperature from 40 nm to 100 nm. Magnetic measurements reveal that garnet ferrite synthesized by sol gel method has high initial permeability (60.22) and low magnetic loss (0.0004) as compared to other garnet ferrite samples, which were synthesized by self combustion and MCMO methods. The M-H loops exhibit very low coercivity which enables the use of these materials in relays and switching devices fabrications. Thus, the garnet nanoferrites with low magnetic loss prepared by different methods may open new horizon for electronic industry for their use in high frequency applications.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2014.06.004