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Enhanced Magnetization of 3 mol% Yttria‐Doped Zirconia/Barium Hexaferrite by Post‐Plastic Deformation
Author(s) -
Suzuki Yoshikazu,
Awano Masanobu,
Kondo Naoki,
Ohji Tatsuki
Publication year - 2000
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2000.tb01340.x
Subject(s) - materials science , coercivity , composite material , magnetization , composite number , deformation (meteorology) , doping , magnetic hysteresis , yttria stabilized zirconia , tetragonal crystal system , metallurgy , cubic zirconia , magnetic field , ceramic , condensed matter physics , crystal structure , crystallography , chemistry , optoelectronics , physics , quantum mechanics
A 3‐mol%‐Y 2 O 3 ‐doped tetragonal‐ZrO 2 polycrystal/BaFe 12 O 19 composite was fabricated by powder metallurgical processes, and its mechanical and magnetic properties were evaluated. Post‐plastic deformation (i.e., hot‐forging) on the composite improved its magnetic properties—that is, saturation magnetization and coercivity—probably because of the alignment of the hexaferrite platelet particles. Post‐plastic deformation may represent a new process to complement conventional slurry‐pressing under a magnetic field, for obtaining good magnetic properties in a magnetic‐particle‐dispersed composite.