Preparation of barium hexaferrite nanopowders by the sol–gel method, using goethite

Mozaffari, M.; Taheri, Mahtab; Amighian, J.

doi:10.1016/j.jmmm.2008.11.106

Cited by 26 publications

(14 citation statements)

References 13 publications

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“…The application of hexagonal ferrites in the area of magnetic recording requires proper control of homogeneity and morphology. In order to improve the magnetic properties, various synthesis techniques such as co precipitation [7,8], sol-gel [9] and hydrothermal synthesis [10] were reported. The properties of the final products are depending on the raw materials, grain growth and sintering temperature.…”

Section: Introductionmentioning

confidence: 99%

Study of structural, morphological and magnetic properties of Ba0.5Sr0.5Fe12O19

Kanagesan

Jesurani

Ramachandran

et al. 2011

J Mater Sci: Mater Electron

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Single-phase barium Strontium hexaferrite (Ba 0.5 Sr 0.5 Fe 12 O 19 -BSF) was synthesized by sol-gel method using metal nitrates as source and D-Fructose as a fuel. The phase formation, surface morphology and magnetic properties of the samples were analyzed by X-ray Diffraction, High-resolution Scanning Electron Microscope (HR-SEM) and Vibrating Sample Magnetometer (VSM). X-ray analysis indicates that the sintered samples were remained in hexagonal structure. The densities of the sintered samples at 1,150°C were found to be 93% of theoretical density. HR-SEM and VSM studies reveal that the sintered samples were resulted in hexagonal structure with good magnetic properties. The average diagonal of the grains varies from 0.95 to 1.7 lm. The thermal treatment effects the growth of the hexagonal grains of ferrites.

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Section: Introductionmentioning

confidence: 99%

Study of structural, morphological and magnetic properties of Ba0.5Sr0.5Fe12O19

Kanagesan

Jesurani

Ramachandran

et al. 2011

J Mater Sci: Mater Electron

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“…Such that in Fig. , observed narrow diffraction peaks may give rice though an increase in the crystallite size .…”

Section: Resultsmentioning

confidence: 87%

Barium hexaferrite reinforced polymeric dye composite coatings for radar absorbing applications

Atay

Çelik

2013

Polymer Composites

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Radar is an electronic and electromagnetic system that uses radio waves to detect and locate objects. Against this system, especially for certain military applications focused on defence and security, radar absorbing materials are required. There are many advanced techniques used for absorbing optimisation. In this study barium hexaferrite was used to produce a radar absorbing composite material. In this sense, an epoxy dye was converted to a radar absorbing coating. Barium hexaferrite powders produced by means of sol–gel method were added to a polymer matrix (dye) with different loading levels to see the concentration dependence of particles' radar absorbing effect. Different types of samples were prepared by coating glass substrates with a polymer matrix loaded with various amount of barium hexaferrites. Samples were characterized by Fourier Transform Infrared (FTIR) and Scanning Electron Microscope‐Energy Dispersive Spectroscopy (SEM‐EDS). Under applied magnetic field, the produced composites exhibited the hysteresis loops of the ferromagnetic behavior with vibrating sample magnetometer (VSM). The saturation magnetization and coercivity of nanocomposites were obtained. In addition, radar absorbing test were applied as a primary objective of this research with a network analyzer. It was concluded that the barium hexaferrite reinforced composites have electromagnetic properties which indicates potential application in high performance adsorbing materials and it was indicated that increasing barium hexaferrite powder amount in the composites leads to increase radar absorbing performance. POLYM. COMPOS., 35:602–610, 2014. © 2013 Society of Plastics Engineers

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“…These various properties have made barium hexaferrite potentially important in high-density perpendicular recording media, electromagnetic interference, magnetic fluids, microwave devices, sensors, microwave absorbing materials, ceramic magnets in loud speakers, and the rotors in DC motors. It is known that the magnetic properties of BaFe 12 O 19 powders vary with substituting (doping) elements, grain size, purity, production method, and annealing/sintering conditions (temperature and time) [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…Among these methods, the sol-gel technique has significant advantages such as being simple, economic, and effective. The solgel process offers better mixing of the starting materials, more easily controllable composition and doping elements, low sintering temperatures, high purity and better crystallized final products [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Effect of La³⁺and Ti⁴⁺Ions on the Magnetic Properties of Barium Hexaferrite Powders Synthesized Using Sol-Gel Method

Ertuş¹,

Yıldırım²,

Çelik³

2016

Journal of Magnetics

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Preparation of barium hexaferrite nanopowders by the sol–gel method, using goethite

Cited by 26 publications

References 13 publications

Study of structural, morphological and magnetic properties of Ba0.5Sr0.5Fe12O19

Study of structural, morphological and magnetic properties of Ba0.5Sr0.5Fe12O19

Barium hexaferrite reinforced polymeric dye composite coatings for radar absorbing applications

Effect of La³⁺and Ti⁴⁺Ions on the Magnetic Properties of Barium Hexaferrite Powders Synthesized Using Sol-Gel Method

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Preparation of barium hexaferrite nanopowders by the sol–gel method, using goethite

Cited by 26 publications

References 13 publications

Study of structural, morphological and magnetic properties of Ba0.5Sr0.5Fe12O19

Study of structural, morphological and magnetic properties of Ba0.5Sr0.5Fe12O19

Barium hexaferrite reinforced polymeric dye composite coatings for radar absorbing applications

Effect of La3+and Ti4+Ions on the Magnetic Properties of Barium Hexaferrite Powders Synthesized Using Sol-Gel Method

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Effect of La³⁺and Ti⁴⁺Ions on the Magnetic Properties of Barium Hexaferrite Powders Synthesized Using Sol-Gel Method