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Self‐Propagating High Temperature Synthesis of Hexagonal Ferrites MFe 12 O 19 (M = Sr, Ba)
Author(s) -
Parkin Ivan P.,
Elwin Gareth,
Barquin Luis Fernández,
Bui Quang T.,
Pankhurst Quentin A.,
Komarov Alexei V.,
Morozov Yuri G.
Publication year - 1997
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19970090811
Subject(s) - materials science , hexagonal crystal system , ceramic , self propagating high temperature synthesis , atmospheric temperature range , magnet , characterization (materials science) , range (aeronautics) , chemical engineering , nanotechnology , crystallography , metallurgy , composite material , thermodynamics , microstructure , mechanical engineering , physics , chemistry , engineering
Hexagonal ferrites, materials widely used for permanent bard magnets , are currently commercially synthesized by multistep ceramic methods. Alternative routes are also multistep as well as being time‐consuming and expensive. Teh self‐propagating, high‐temperature synthesis (SHS) presented here is convenient, quick, inexpensive, and single‐step and it enables a range of ferrites, Sr x Ba y Fe 12 O 19 ( x + y equals; 1), to be prepared. The principles of SHS are briefly explained before the characterization of the reaction products, including their magnetic properties, is described.