Инд. авторы:	Vinnik D.A., Chernukha A.S., Gudkova S.A., Zhivulin V.E., Trofimov E.A., Tarasova A.Y., Zherebtsov D.A., Kalandija M., Trukhanov A.V., Trukhanov S.V., Senin A.V., Isaenko L.I., Perov N.S., Niewa R.
Заглавие:	Morphology and magnetic properties of pressed barium hexaferrite BaFe12O19 materials
Библ. ссылка:	Vinnik D.A., Chernukha A.S., Gudkova S.A., Zhivulin V.E., Trofimov E.A., Tarasova A.Y., Zherebtsov D.A., Kalandija M., Trukhanov A.V., Trukhanov S.V., Senin A.V., Isaenko L.I., Perov N.S., Niewa R. Morphology and magnetic properties of pressed barium hexaferrite BaFe12O19 materials // Journal of Magnetism and Magnetic Materials. - 2018. - Vol.459. - P.131-135. - ISSN 0304-8853.
Идентиф-ры:	DOI: 10.1016/j.jmmm.2017.11.085; РИНЦ: 35480064; РИНЦ: 35480064; SCOPUS: 2-s2.0-85035113770; WoS: 000432615700026;
Реферат:	eng: Barium hexaferrite tablets were compacted at pressures of 50–149 kN/cm2 and subsequently calcined at different temperatures up to 1350 °C for various durations. The compaction pressure has a non-monotonic influence on the calcined sample density and coercivity. The apparent density shows a maximum concomitant to a minimum in coercivity near a compaction pressure of 120 kN/cm2. In contrast the Curie temperature of 459 °C are not influenced by the compaction pressure. The optimized compaction pressure and subsequent calcination temperature for obtaining high-density single phase material is inferred to 108 kN/cm2 and 1350 °C, respectively. The resulting pellets show surfaces of two different sized crystallites in the 3–10 µm and 50–150 µm ranges and grains with cheese-like pores of 5–7 µm in the interior. The interior grain size increases with compaction pressure to up to 150–250 µm, while the pore size stays unaffected. © 2017 Elsevier B.V.
Ключевые слова:	Ferrites; Magnetization; Pelletizing; Permanent magnets; Barium; Barium compounds; Calcination; Coercive force; Ferrite; Iron compounds; Magnetization; Permanent magnets; Pore size; Apparent density; Barium hexaferrites; Calcination temperature; Compaction pressure; Grain size; Sample density; Compaction; Single-phase materials; Pelletizing; Calcination;
Издано:	2018
Физ. хар-ка:	с.131-135
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