Effects of divalent ions substitution on the microstructure, magnetic and electromagnetic parameters of Co2W hexagonal ferrites synthesized by sol–gel method

Ba(Zn0.3Co0.7)2Fe16O27hexagonal ferrites have been prepared by sol-gel method. Effects of polyvinyl pyrrolidone (PVP) on crystalline phase, natural surface and electromagnetic properties were analyzed. The XRD patterns of samples with and without PVP added both showed the single phase of hexagonal ferrite. The particle thickness increased when PVP was added. Moreover, Ferrites prepared with 2.0g PVP added into the sol solution had lower complex permittivity. Addition of PVP can be an effective way to obtain the electromagnetic match of hexagonal ferrites.

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Magnetic properties of As2O3- and Sb2O3-doped Ba-M hexagonal ferrites prepared by the sol-gel method

Journal of Magnetism and Magnetic Materials ◽

10.1016/0304-8853(92)90306-9 ◽

1992 ◽

Vol 117 (1-2) ◽

pp. 163-168 ◽

Cited By ~ 8

Author(s):

P. Brahma ◽

Anit K. Giri ◽

D. Chakravorty ◽

M. Roy ◽

D. Bahadur

Keyword(s):

Magnetic Properties ◽

Sol Gel ◽

Hexagonal Ferrites ◽

Gel Method ◽

Sol Gel Method

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Magnetic properties of Ba-M-type hexagonal ferrites prepared by the sol–gel method with and without polyethylene glycol added

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2008.06.047 ◽

2009 ◽

Vol 474 (1-2) ◽

pp. 185-189 ◽

Cited By ~ 47

Author(s):

Mangui Han ◽

Yu Ou ◽

Wenbing Chen ◽

Longjiang Deng

Keyword(s):

Magnetic Properties ◽

Polyethylene Glycol ◽

Sol Gel ◽

Hexagonal Ferrites ◽

Gel Method ◽

Sol Gel Method

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Preparation and Electromagnetic Property of Hexagonal W-Type Ferrite Obtained by the Sol-Gel Method

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.474-476.1044 ◽

2011 ◽

Vol 474-476 ◽

pp. 1044-1048

Author(s):

Zheng Xiong ◽

Zhu Xi ◽

Zhang Li Jun

Keyword(s):

Microwave Absorption ◽

Reflection Loss ◽

Sol Gel ◽

Electromagnetic Property ◽

Element Composition ◽

Vector Network Analyzer ◽

Network Analyzer ◽

Electromagnetic Parameters ◽

Gel Method ◽

Sol Gel Method

Hexagonal W-type ferrite BaZn0.6Co1.4Fe16O27 was prepared by the sol-gel method. The formation, microstructure, element composition and phases were analyzed by TG-DTA, SEM, EDS and XRD. The electromagnetic parameters and microwave absorption capability were measured by the microwave vector network analyzer. The results showed that the reflection loss of the ferrite BaZn0.6Co1.4Fe16O27 in the spectrum of 8-18GHz came up to -10dB and came up to -20dB in the spectrum of 9.5-16.4GHz.

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