Effect of Fuel on the Synthesis and Properties of Poly(methyl methacrylate) Modified SrFe12O19 Nanoparticles

• Published in: Journal of superconductivity and novel magnetism Vol. 25; no. 6; pp. 1957 - 1963
• Main Authors: Durmus, Z., Sozeri, H., Toprak, M. S., Baykal, A.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.08.2012; Springer
• Subjects: Characterization and Evaluation of Materials; Condensed Matter Physics; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Domain effects, magnetization curves, and hysteresis; Exact sciences and technology; Fuel; Fuels; Hard magnetic material; Magnetic Materials; Magnetic nanoparticles; Magnetic properties; Magnetic properties and materials; Magnetic properties of nanostructures; Magnetism; Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects; Materials science; Morphology; Nanopowders; Nanoscale materials and structures: fabrication and characterization; Nanostructure; Original Paper; Physics; Physics and Astronomy; Polymethyl methacrylates; Purity; Small particles and nanoscale materials; Strongly Correlated Systems; Strontium; Strontium hexaferrite; Studies of specific magnetic materials; Superconductivity; Ureas; Strontium hexaferrite; Hard magnetic material; Magnetic nanoparticles; Fuel; Magnetic properties; Scanning electron microscopy; Hexagonal ferrites; Organic polymers; XRD; Magnetic measurement; Nanoparticles; Urea; PMMA; Coercive force; Iron Strontium Oxides Mixed; Fourier-transformed infrared spectrometry; Microstructure; Crystal morphology; Sol-gel process; Saturation magnetization; Crystal structure
• ISSN: 1557-1939; 1557-1947
• DOI: 10.1007/s10948-012-1538-9

Nanosized strontium hexaferrite (SrFe 12 O 19 ) has been synthesized by citrate, urea, oxalic, and glycine precursor via a sol-gel route with poly(methyl methacrylate) (PMMA) as a templating agent. Crystal structure, morphology, and magnetic properties of as-synthesized nanoparticles were characterized by XRD, SEM, FT-IR, and VSM techniques. The formation of strontium hexaferrite and its crystallite size in presence of different fuels were compared. The influence of different fuels was reflected on the phase purity, morphology of the final powders as well as the magnetic properties. Magnetic measurements revealed that samples prepared by citric acid and glycine as fuel have high specific saturation magnetization and moderate coercivity, while urea and oxalic acid fuels resulted in low phase purity, and thus inferior magnetic properties.