Structural and Magnetic Characteristics of Ferroxplana Co{sub 2}Y Nanoferrites Synthesized via Two Chemical Routes

Journal Article · Sat Dec 15 00:00:00 EST 2018 · Journal of Superconductivity and Novel Magnetism

DOI:https://doi.org/10.1007/S10948-018-4674-Z· OSTI ID:22773601

Rayan, D. A.; EL-Gendy, M. ^[1]; Kholy, Moawad M. El ^[2]; Taha, T. A. ^[3]

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1. Central Metallurgical Research and Development Institute (CMRDI) (Egypt)
2. Menoufia University, Department of Physics, Faculty of Science (Egypt)
3. Menoufia University, Physics and Engineering Mathematics Department, Faculty of Electronic Engineering (Egypt)

Barium Y-type hexaferrite Ba{sub 2}Co{sub 2}Fe{sub 12}O{sub 22} nanopowders have been purposefully tailored using two different chemical wet methods, namely sol-gel auto-combustion (SGA) and co-precipitation (CP) routes. The impact of the pre-annealing and the annealing temperature of the formed precursors synthesized using two strategies on the structural, microstructure, and magnetic properties was investigated using x-ray diffraction (XRD), scanning electron microscopic (SEM), Fourier transform infrared spectroscopy (FT-IR), and vibrating sample magnetometer (VSM). For instance, well-defined Ba{sub 2}Co{sub 2}Fe{sub 12}O{sub 22} hexagonal plate-like particles was observed using SGA and CP routes for the precursors pre-annealed at 600 {sup ∘}C for 4 h and then annealed at low temperature 1000 {sup ∘}C for 2 h. The magnetic properties measured at room temperature evinced that hexaferrite Co{sub 2}Y particles have ferromagnetic characteristics. Good magnetic properties involving saturation magnetization (M{sub s}) of 23.64 and 24.37 emu/g and the coercivity (H{sub c}) of 417.76 and 280.92 Oe were accomplished for the samples pre-annealed at 600 {sup ∘}C for 4 h and then annealed at 1000 {sup ∘}C for 2 h for SGA and CP methods, respectively.

• OSTI ID: 22773601
• Journal Information: Journal of Superconductivity and Novel Magnetism, Vol. 31, Issue 12; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); ISSN 1557-1939
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNEALING
BARIUM COMPOUNDS
COBALT COMPOUNDS
COERCIVE FORCE
COPRECIPITATION
FERRITES
FOURIER TRANSFORM SPECTROMETERS
MAGNETIC PROPERTIES
MAGNETIZATION
MICROSTRUCTURE
NANOSTRUCTURES
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
TEMPERATURE RANGE 0273-0400 K
VIBRATING SAMPLE MAGNETOMETERS
X-RAY DIFFRACTION