نتایج جستجو برای: barium hexaferrite

تعداد نتایج: 8577  

In this paper, a series of BaLa­xGdxFe12-2xO19 (x=0.2, 0.4, 0.6 and 0.8)/PANI (polyaniline) nanocomposites synthesized for investigating the photocatalytic properties. Barium hexaferrite doped with La3+ and Gd3+ prepared via a sol-gel auto-combustion method and then the binary nanocomposites fabricated by the in situ polymerizati...

2016
S. Torres A. Bravo

This paper focuses on the loading and release studies of tetracycline as model drug from spherical aggregates of micron size (approx. 1.2 μm in diameter) of barium hexaferrite (BaO·6Fe2O3) synthetized from wet chemical sol-gel method via spray drying. BaO·6Fe2O3 aggregates were characterized using x-ray diffraction and scanning electron microscopy. The load capacity of BaO·6Fe2O3 systems was re...

2007
Philip Shepherd Kajal K. Mallick Roger J. Green

Stoichiometric and single-phase barium hexaferrite (BaM) has been synthesized by co-precipitation and an additional solid state preparative method using high-purity nitrates, oxides and carbonates of iron (III), barium (II) and ammonium hydroxide. The isochronally and isothermally measured permeability and magnetic loss tangents over 1MHz–1GHz in frequency remained moderately constant until a s...

Abolghasem Ataie Mahmoud Heydarzadeh Sohi Soheila Kharratian Khameneh,

The influences of anionic sodium dodecylsulfate (SDS) and cationic Hexadecyltrimethylammonium bromide (HTAB) surfactants on the incorporation and distribution of barium hexaferrite nanoparticles in the electrodeposited CoFe-BaFe12O19 composite thin films were studied. Sulphate bathes with natural pH containing 0 to 2 g/L surfactants were used for electroplating at room temperature. Field emissi...

Journal: : 2022

In the work investigated influence of plasma treatment conditions on structural-phase composition and magnetic properties barium hexaferrite films (0001) BaFe 12 O 19 C-sapphire. Two modes were used: with a weight average temperature 4-5 kK 8-10 kK. It has been shown that obtained at low have pronounced anisotropy saturation magnetization 42 emu/g. The high weak anisotropy, but higher value 62 ...

2010
Jaydip Das Young-Yeal Song Mingzhong Wu

This paper demonstrates an electric-field tuning of the ferromagnetic resonance FMR responses at millimeter wave frequencies for a monolithic magneto-electric heterostructure. The layered stack is comprised of c-axis oriented and low loss barium hexaferrite BaM and 111 oriented ferroelectric barium strontium titanate BSTO layers along with embedded platinum electrode layers, all fabricated by p...

Journal: :Hyperfine Interactions 2023

Abstract M-type Barium hexaferrite is a famous hard magnetic material with hexagonal crystal structure. La substituted hexaferrite, Ba (1-x) (x) Fe 12 O 19 , (where, x = 0.25 and 0.30) were synthesized using ball milling followed by sintering at 1300 °C for 5 hours. X-ray diffraction patterns reveal the formation of single-phase magnetoplumbite structure barium which belongs to P6 3 /mmc space ...

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