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Preparation and Characterization of Nanocrystalline Misch‐Metal‐Substituted Yttrium Iron Garnet Powder by the Sol–Gel Combustion Process
Author(s) -
Hosseini Vajargah Shahrzad,
Madaah Hosseini Hamid Reza,
Nemati Ziarat Ali
Publication year - 2008
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2008.02241.x
Subject(s) - materials science , nanocrystalline material , crystallite , calcination , scanning electron microscope , yttrium , analytical chemistry (journal) , yttrium iron garnet , metal , magnetometer , magnetization , coercivity , sol gel , nuclear chemistry , metallurgy , nanotechnology , oxide , composite material , chromatography , chemistry , magnetic field , catalysis , optics , biochemistry , physics , quantum mechanics , condensed matter physics
Nanocrystalline Y 3− x MM x Fe 5 O 12 powders (MM denotes Misch‐metal, x =0.0, 0.25, 0.5, 0.75, and 1.0) were synthesized by a sol–gel combustion method. Magnetic properties and crystalline structures were investigated using X‐ray diffraction (XRD), a vibrating sample magnetometer (VSM), and a scanning electron microscope. The XRD patterns showed that the single‐phase garnet of Y 3− x MM x Fe 5 O 12 was formed at x values ≤1.0. The saturation magnetization of powders increased with decreasing MM content and reached the maximum value at Y 3 Fe 5 O 12 . The crystallite size of powders calcined at 800°C for 3 h was in the range of 38–53 nm.