Improved magnetoelectric effect in lead free [72.5(Bi_1/2Na_1/2TiO₃)–22.5(Bi_1/2K_1/2TiO₃)–5(BiMg_1/2Ti_1/2

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• 作者：Mintu Tyagi ; Puneet Sharma ; Mukesh Kumari…
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：28
• 期：3
• 页码：2812-2816
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials;
• 出版者：Springer US
• ISSN：1573-482X
• 卷排序：28

文摘

Non lead based ternary solid solution 72.5(Bi_1/2Na_1/2TiO₃)–22.5(Bi_1/2K_1/2TiO₃)–5(BiMg_1/2Ti_1/2O₃) with high piezoelectric coefficient (d₃₃) 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 d₃₃ (~125 pC/N) of composite. The present study demonstrate a new environmental-friendly ME particulate composite for future applications.