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Improved magnetoelectric effect in lead free [72.5(Bi1/2Na1/2TiO3)–22.5(Bi1/2K1/2TiO3)–5(BiMg1/2Ti1/2O3)]: CoFe2O4 particulate nanocomposites prepared by sol–gel method

  • 13-10-2016
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Abstract

Non lead based ternary solid solution 72.5(Bi1/2Na1/2TiO3)–22.5(Bi1/2K1/2TiO3)–5(BiMg1/2Ti1/2O3) with high piezoelectric coefficient (d 33 ) of 180 pC/N has been prepared. Further, magnetoelectric (ME) particulate composites (1 − x)[72.5(BNT)-22.5(BKT)-5(BMgT)] − x CoFe2O4 (CFO) (x = 0, 0.1, 0.2, 0.3) were synthesized and a systematic study of structural, ferroelectric, magnetic and ME properties was undertaken. Large ME voltage coefficient (α E ) values accompanied by large piezoelectric coefficient and the adequate interface contact between the magnetic and electric phases were observed in these composites. The composite with x = 0.2, showed the large value of ME voltage coefficient (α E ) ~112 mV/cmOe due to higher d 33 (~125 pC/N) of composite. The present study demonstrate a new environmental-friendly ME particulate composite for future applications.

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Title
Improved magnetoelectric effect in lead free [72.5(Bi1/2Na1/2TiO3)–22.5(Bi1/2K1/2TiO3)–5(BiMg1/2Ti1/2O3)]: CoFe2O4 particulate nanocomposites prepared by sol–gel method
Authors
Mintu Tyagi
Puneet Sharma
Mukesh Kumari
Megha Thakur
Publication date
13-10-2016
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 3/2017
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-016-5862-x
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