Determining of Crystallography Site Occupancy and Magnetic Consequences of Substituted Barium Ferrite Nanoparticles Synthesized by Sol-gel Process

2015 ◽  
Vol 29 (1) ◽  
pp. 169-177 ◽  
Author(s):  
Ali Ghasemi
Keyword(s):  
Barium Ferrite ◽  
Sol Gel ◽  
Site Occupancy ◽  
Ferrite Nanoparticles ◽  
Sol Gel Process

Magnetically anisotropic barium ferrite thin films on sapphire by sol–gel process

2010 ◽  
Vol 518 (12) ◽  
pp. 3342-3344 ◽  
Author(s):  
Hao Tang ◽  
Wenxu Zhang ◽  
Bin Peng ◽  
Wanli Zhang
Keyword(s):  
Thin Films ◽  
Barium Ferrite ◽  
Sol Gel ◽  
Sol Gel Process ◽  
Ferrite Thin Films

Preparation, Dielectric and Magnetic Properties of Barium-Ferrite-Containing Microcrystalline Glass Ceramic by Citrate Sol-Gel Process

2007 ◽  
Vol 280-283 ◽  
pp. 457-460 ◽  
Author(s):  
Hai Jun Zhang ◽  
Xiao Lin Jia ◽  
Xi Yao ◽  
Liang Ying Zhang
Keyword(s):  
Dielectric Constant ◽  
Barium Ferrite ◽  
Sol Gel ◽  
Glass Ceramics ◽  
Complex Dielectric Constant ◽  
Complex Permeability ◽  
X Ray Diffraction ◽  
X Ray ◽  
Sol Gel Process ◽  
Scanning Electron

Four kinds of barium-ferrite-containing microcrystalline glass ceramics, such as BaFe12O19/SiO2, BaFe12O19/SiO2-B2O3, BaFe12O19/SiO2-B2O3-K2O and BaFe12O19/SiO2-Al2O3-K2O were prepared by citrate sol-gel process, in which inceptive formation temperatures varied from 850°C to 1100°C. The complex dielectric constant and complex permeability of those glass ceramics were measured at 0.1-5.0GHz, and the frequency dependence of complex dielectric constant and permeability was studied. The microcrystalline glass ceramics were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM).

scholarly journals Developments of cobalt ferrite nanoparticles prepared by the sol–gel process

2014 ◽  
Vol 40 (1) ◽  
pp. 1147-1154 ◽  
Author(s):  
M. Sajjia ◽  
M. Oubaha ◽  
M. Hasanuzzaman ◽  
A.G. Olabi
Keyword(s):  
Cobalt Ferrite ◽  
Sol Gel ◽  
Ferrite Nanoparticles ◽  
Cobalt Ferrite Nanoparticles ◽  
Sol Gel Process

The Synthesis and Characterizations of Aluminums Doped Barium Ferrite (BaAlFe11O19)

2018 ◽  
Vol 777 ◽  
pp. 50-54
Author(s):  
Wattanasak Srisiri ◽  
Arkom Kaewrawang
Keyword(s):  
Magnetic Fields ◽  
Saturation Magnetization ◽  
Annealing Time ◽  
Barium Ferrite ◽  
Sol Gel ◽  
Annealing Temperatures ◽  
Maximum Value ◽  
Sol Gel Process

Aluminums doped barium ferrite (BaAlFe11O19) was synthesized by sol gel process at annealing temperatures, Ta, of 700 - 1000 °C and annealing time, ta, of 2 hr. The trend of saturation magnetization, σs, and the product of the magnetization and external magnetic fields, σHmax, increases from Ta = 700 - 900 °C, then decreases. The maximum value of σHmax and coercivity, Hc, are 13194.74 Oeemu/g and 20.33 emu/g, respectively, at Ta = 900 °C. The Hc increases from Ta = 700 - 1000 °C and its maximum value is 4448.80 Oe at 1000 °C. The trend of the crystallize size, <D>, increases from Ta = 700 - 900 °C then they are constant until Ta = 1000 °C. The maximum of <D> is 679.18 Å at 950 °C.

Complex permittivity, permeability, and microwave absorption of Zn- and Ti-substituted barium ferrite by citrate sol–gel process

2002 ◽  
Vol 96 (3) ◽  
pp. 289-295 ◽  
Author(s):  
Zhang Haijun ◽  
Liu Zhichao ◽  
Ma Chengliang ◽  
Yao Xi ◽  
Zhang Liangying ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Complex Permittivity ◽  
Barium Ferrite ◽  
Sol Gel ◽  
Sol Gel Process

Preparation and microwave properties of Co- and Ti-doped barium ferrite by citrate sol–gel process

2003 ◽  
Vol 80 (1) ◽  
pp. 129-134 ◽  
Author(s):  
Zhang Haijun ◽  
Liu Zhichao ◽  
Ma Chenliang ◽  
Yao Xi ◽  
Zhang Liangying ◽  
...  
Keyword(s):  
Barium Ferrite ◽  
Sol Gel ◽  
Microwave Properties ◽  
Sol Gel Process
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