Investigation of the thermal stability of Mn ferrite particles synthesized by a modified co-precipitation method

Manganese ferrite particles with spinel structure were synthesized by a modified co-precipitation method, and then the thermal stability on their structural and magnetic properties was investigated by thermal annealing at different gas ambients. Experi- mental results showed that decomposition of me...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:中国科学:化学英文版 2013 (3), p.568-572
1. Verfasser: DONG ChunHui WANG GaoXue SHI Lei GUO DangWei JIANG ChangJun XUE DeSheng
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Manganese ferrite particles with spinel structure were synthesized by a modified co-precipitation method, and then the thermal stability on their structural and magnetic properties was investigated by thermal annealing at different gas ambients. Experi- mental results showed that decomposition of metal oxides occurred when Mn ferrite particles with spinel structure were an- nealed under air ambient, while samples annealed in vacuum or argon remained in the spinel structural form. The highest satu- ration magnetization value of 58 emu/g was obtained when the sample was annealed at 400℃ in argon. The result showed that the thermal stability of MnFe2O4 was better under Ar ambient conditions or in vacuum.
ISSN:1674-7291
1869-1870