scholarly journals Effect of Al3+ Substitution on Structural and Magnetic Properties of NiZnCo Nano Ferrites

2021 ◽  
Vol 12 (5) ◽  
pp. 6093-6099
Keyword(s):  
Magnetic Properties ◽  
Lattice Constant ◽  
Spinel Structure ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Auto Combustion ◽  
Crystallite Sizes ◽  
Ft Ir ◽  
Structural And Magnetic Properties

Sol-gel method incorporating auto combustion is used to prepare Al3+ substituted Ni0.4Zn0.35Co0.25Fe2-xAlxO4 with concentration (x = 0.0, 0.10, 0.20) samples. XRD shows their Cubic spinel structure with lattice constant increasing and crystallite sizes decreasing from 32.15 nm to 22.89 nm with Al3+. The spinel structure is confirmed with the help of FT-IR. They have isotropic nature with the single ferrimagnetic domain as given by VSM. The product is widely used.

Structural and Magnetic Properties of CoAl0.1Fe1.9O4 Thin Films Prepared by a Sol-Gel Method

2002 ◽  
Vol 189 (3) ◽  
pp. 883-887
Author(s):  
Sam Jin Kim ◽  
Woo Chul Kim ◽  
In Bo Shim ◽  
Chul Sung Kim ◽  
Seung Wha Lee
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Structural And Magnetic Properties

Structural and magnetic properties of yttrium iron garnet nanoparticles doped with copper obtained by sol gel method

2019 ◽  
Vol 236 ◽  
pp. 547-549 ◽  
Author(s):  
L.R.F. Leal ◽  
Y. Guerra ◽  
E. Padrón-Hernández ◽  
A.R. Rodrigues ◽  
F.E.P. Santos ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Yttrium Iron Garnet ◽  
Sol Gel ◽  
Yttrium Iron ◽  
Gel Method ◽  
Sol Gel Method ◽  
Structural And Magnetic Properties ◽  
Iron Garnet

scholarly journals The effect of pH on the structural and magnetic properties of PbFe12O19 nanoparticles prepared by sol-gel method

2017 ◽  
Vol 16 (4) ◽  
pp. 365-374
Author(s):  
S E Mousavi Ghahfarokhi ◽  
Z Araghi Rostami ◽  
I Kazeminezhad ◽  
◽  
◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Sol Gel ◽  
Effect Of Ph ◽  
Gel Method ◽  
Sol Gel Method ◽  
Structural And Magnetic Properties

Study of Nanocrystalline ZnAl2O4 and ZnFe2O4 with SiO2 on Structural and Optical Properties Synthesized by Sol-Gel Method

2015 ◽  
Vol 1119 ◽  
pp. 96-100
Author(s):  
Mohd Syafiq Zulfakar ◽  
Huda Abdullah ◽  
Wan Nasarudin Wan Jalal ◽  
Zalita Zainuddin ◽  
Sahbudin Shaari
Keyword(s):  
Optical Properties ◽  
Spinel Structure ◽  
Dielectric Material ◽  
Sol Gel ◽  
Zinc Aluminate ◽  
Gel Method ◽  
Sol Gel Method ◽  
Tauc Plot ◽  
Crystallite Sizes ◽  
Spinel Structures

Zinc aluminate (ZnAl2O4) and zinc ferrite (ZnFe2O4) nanocrystalline structures dispersed into SiO2 matrix were prepared by sol-gel method. Phase formation of ZnAl2O4 and ZnFe2O4 was confirmed by X-ray diffraction (XRD) analysis. The crystallite sizes was determine using Scherer’s equation from the broadening of dominant peak at (311) plane. It was found the crystallite size of both compound decreased due to the decrement compositions of Zn2+ ion and Al3+ / Fe3+ ions. The crystallite sizes for ZnAl2O4 and ZnFe2O4 was calculated to be around ~ 14.16 – 11.27 nm and ~ 11.27 – 4.72 nm, respectively. FTIR analysis was done to determine the formation of spinel structures. FTIR results analysis confirmed that the formation of spinel structure where it has been observed that the bands around 800 cm-1 was associated to the vibrations of aluminum-oxygen and metal-oxygen-aluminum bonds. This characteristic was identified to the formation of zinc aluminate spinel structure. The optical properties have been done to determine the energy bandgap of ZnAl2O4 and ZnFe2O4 samples. The Uv-Visible absorption spectra have been done within wavelength 300 – 800 nm and the graph was plotted into the Tauc plot. This new dielectric material was purposed to improve the value of dielectric permittivity with addition of SiO2 where it can be applied as microwave dielectric material without changing the original spinel structures.

Effect of Annealing Temperature on the Structural and Magnetic Properties of Co-Doped TiO2 Nanoparticles via Complex-Polymer Sol–Gel Method

2012 ◽  
Vol 12 (2) ◽  
pp. 950-954 ◽  
Author(s):  
Masoud Karimipour ◽  
J. Magnus Wikberg ◽  
Nasser Shahtahmasebi ◽  
Mahmood Rezaee Rokn Abad ◽  
M. M. Bagheri-Mohagheghi ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Tio2 Nanoparticles ◽  
Annealing Temperature ◽  
Sol Gel ◽  
Gel Method ◽  
Doped Tio2 ◽  
Sol Gel Method ◽  
Structural And Magnetic Properties ◽  
Complex Polymer ◽  
Co Doped
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