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Synthesis, characterization and magnetic properties of fine Fe-Cr-B amorphous particles

TitleSynthesis, characterization and magnetic properties of fine Fe-Cr-B amorphous particles
Publication TypePresentazione a Congresso
Year of Publication1995
AuthorsSuber, L., Fiorani D., Romero H., De Pamphilis A., Vittori M., Montone Amelia, Dormann J.L., and Maknani J.
Conference NameMaterials Science Forum
PublisherTrans Tech Publ, Zurich, Switzerland
Conference LocationRome, Italy
KeywordsAmorphous materials, Ferromagnetism, Iron chromium bromide, Iron Compounds, Magnetic properties, Magnetically disordered state, Magnetization, Morphology, Mossbauer spectroscopy, Particle size analysis, Reduction, Scanning electron microscopy, Structural characterization, Structure (composition), Transmission electron microscopy, X ray diffraction

We report the preparation of amorphous Fe80-xCrxB20 (5 ≤ x ≤ 70) fine particles by chemical reduction, their morphological and structural characterization by SEM, TEM measurements and X-ray diffraction, and the study of their magnetic properties by means of Mossbauer and magnetization measurements. The particles are spherical and their size (10 < φ < 200 nm) is composition dependent, decreasing with increasing Cr-content. The magnetic properties, determined by chemical composition and by particle sizes distribution, move with increasing chromium content x, from a ferromagnetic character to a magnetically disordered state, characterized by the coexistence of ferro and antiferromagnetic interactions.

Citation KeySuber1995209