Effect of Al-substitution on phase formation and magnetic properties of barium hexaferrite synthesized with sol-gel auto-combustion method

2008 ◽  
Vol 12 (3) ◽  
pp. 216-220 ◽  
Author(s):  
Zhong-yue Yue ◽  
Min-jian Zhong ◽  
Hong-liang Ma ◽  
Guang-lei Guo
Keyword(s):  
Magnetic Properties ◽  
Phase Formation ◽  
Sol Gel ◽  
Barium Hexaferrite ◽  
Combustion Method ◽  
Al Substitution ◽  
Auto Combustion

Dielectric and magnetic properties of Zn-substituted Co2Y barium hexaferrite prepared by sol–gel auto combustion method

2016 ◽  
Vol 494 ◽  
pp. 33-40 ◽  
Author(s):  
I. Odeh ◽  
H.M. El Ghanem ◽  
S.H. Mahmood ◽  
S. Azzam ◽  
I. Bsoul ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Sol Gel ◽  
Barium Hexaferrite ◽  
Combustion Method ◽  
Auto Combustion

scholarly journals Loading Effect of Sol-Gel Derived Barium Hexaferrite on Magnetic Polymer Composites

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 558
Author(s):  
Thanida Charoensuk ◽  
Wannisa Thongsamrit ◽  
Chesta Ruttanapun ◽  
Pongsakorn Jantaratana ◽  
Chitnarong Sirisathitkul
Keyword(s):  
Polymer Composites ◽  
Sol Gel ◽  
Weight Ratio ◽  
Barium Hexaferrite ◽  
Acrylonitrile Butadiene Styrene ◽  
Combustion Method ◽  
Casting Method ◽  
Auto Combustion ◽  
Solution Casting Method ◽  
Butadiene Styrene

Solution–processing methods were investigated as viable alternatives to produce the polymer-bonded barium hexaferrite (BaM). BaM powders were first synthesized by using the sol-gel auto-combustion method. While the ignition period in two synthesis batches varied, the morphology of hexagonal microplates and nanorods, as well as magnetic properties, were reproduced. To prepare magnetic polymer composites, these BaM powders were then incorporated into the acrylonitrile-butadiene-styrene (ABS) matrix with a weight ratio of 80:20, 70:30, and 60:40 by using the solution casting method. Magnetizations were linearly decreased with a reduction in ferrite loading. Compared to the BaM loose powders and pressed pellet, both remanent and saturation magnetizations were lower and gave rise to comparable values of the squareness. The squareness around 0.5 of BaM samples and their composites revealed the isotropic alignment. Interestingly, the coercivity was significantly increased from 1727–1776 Oe in loose BaM powders to 1874–2052 Oe for the BaM-ABS composites. These composites have potential to be implemented in the additive manufacturing of rare-earth-free magnets.

scholarly journals Green synthesis and characterization of hexaferrite strontium-perovskite strontium photocatalyst nanocomposites

2020 ◽  
Vol 43 (1) ◽  
pp. 26-42 ◽  
Author(s):  
Zahra Hajian Karahroudi ◽  
Kambiz Hedayati ◽  
Mojtaba Goodarzi
Keyword(s):  
Magnetic Properties ◽  
Green Synthesis ◽  
Sol Gel ◽  
Synthesis Method ◽  
Combustion Method ◽  
Lemon Juice ◽  
X Ray Diffraction ◽  
X Ray ◽  
Auto Combustion

AbstractThis study presents a preparation of SrFe12O19– SrTiO3 nanocomposite synthesis via the green auto-combustion method. At first, SrFe12O19 nanoparticles were synthesized as a core and then, SrTiO3 nanoparticles were prepared as a shell for it to manufacture SrFe12O19–SrTiO3 nanocomposite. A novel sol-gel auto-combustion green synthesis method has been used with lemon juice as a capping agent. The prepared SrFe12O19–SrTiO3 nanocomposites were characterized by using several techniques to characterize their structural, morphological and magnetic properties. The crystal structures of the nanocomposite were investigated via X-ray diffraction (XRD). The morphology of SrFe12O19– SrTiO3 nanocomposite was studied by using a scanning electron microscope (SEM). The elemental composition of the materials was analyzed by an energy-dispersive X-ray (EDX). Magnetic properties and hysteresis loop of nanopowder were characterized via vibrating sample magnetometer (VSM) in the room temperature. Fourier transform infrared spectroscopy (FTIR) spectra of the samples showed the molecular bands of nanoparticles. Also, the photocatalytic behavior of nanocomposites has been checked by the degradation of azo dyes under irradiation of ultraviolet light.

Synthesis of Cr and Al Substitution Calcium Nano Hexaferrite by Sol-Gel Auto-Combustion Method

2018 ◽  
Vol 5 (10) ◽  
pp. 22181-22187
Author(s):  
A.P. Bhat ◽  
S.J. Dhoble ◽  
D.K. Sahu ◽  
K.G. Rewatkar
Keyword(s):  
Sol Gel ◽  
Combustion Method ◽  
Al Substitution ◽  
Auto Combustion

Structural and magnetic properties of Gd–Zn substituted M-type Ba–Sr hexaferrites by sol-gel auto-combustion method

2019 ◽  
Vol 803 ◽  
pp. 971-980 ◽  
Author(s):  
Kai Huang ◽  
Jiangying Yu ◽  
Li Zhang ◽  
Jinrong Xu ◽  
Zhiyun Yang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Sol Gel ◽  
Combustion Method ◽  
Auto Combustion ◽  
Structural And Magnetic Properties
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