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Magneto‐Electric Properties of Multiferroic Pb(Zr 0.52 Ti 0.48 )O 3 –NiFe 2 O 4 Nanoceramic Composites
Author(s) -
Jiang Qinghui,
Liu Futian,
Yan Haixue,
Ning Huanpo,
Libor Zsuzsanna,
Zhang Qi,
Cain Markys,
Reece Michael J.
Publication year - 2011
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.1551-2916.2011.04665.x
Subject(s) - nanoceramic , materials science , spark plasma sintering , multiferroics , composite material , dielectric , grain size , piezoelectricity , magnetostriction , ceramic , ferroelectricity , ball mill , ferromagnetism , ferroelectric ceramics , composite number , curie temperature , magnetic field , condensed matter physics , physics , optoelectronics , quantum mechanics
Bulk 0.7 PbZr 0.52 Ti 0.48 O 3 –0.3NiFe 2 O 4 nanoceramic composites with a grain size of ~50 nm were fabricated using chemical synthesis, high‐energy ball‐milling, and spark plasma sintering. The composite produced broad dielectric constant peaks and frequency dispersion, similar to relaxor ferroelectrics, and was ferroelectric and ferromagnetic. The dielectric and piezoelectric properties of nanoceramics are lower than those of microceramics due to grain‐size effects. “Butterfly”‐type magnetoelectric (ME) loops indicate that direct stress coupling between magnetostrictive and piezoelectric phases is still active in composite ceramics when the grain size is ~50 nm.