Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
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Σάββατο 23 Ιουνίου 2018

Mechanochemically processed zinc ferrite nanoparticles: Evolution of structure and impact of induced cation inversion

Publication date: 1 November 2018
Source:Journal of Magnetism and Magnetic Materials, Volume 465
Author(s): Vincent G. Harris, Vladimir Šepelák
Among the many types of preparation techniques, the non-conventional mechanochemical processing has been recognized as an alternative route to nanomaterials. It is integral to the preparation of ceramic materials, including magnetoceramics, such as spinels, garnets, and hexaferrites, among others. This technique imparts copious levels of kinetic energy through collisions of balls, chamber walls, and media particles resulting in not only physical mixing, attrition, and solid state reaction, but also vacancies, strain, and cation inversion. Here, we strive to elucidate the impact of mechanochemical processing upon a single step solid-state reaction and the inversion of cations in the zinc ferrite system and their impact upon important long-range magnetic properties of volumetric magnetization, Néel temperature, and nuclear magnetic properties, including hyperfine field distributions, isomer shifts, and quadrupole interactions.



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