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Composite Magnetoelectrics by N Sun, S Priya, G Srinivasan

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6.6. Recent advances in lead-free piezoelectric and magnetoelectric composites

Recently, investigations have focused on developing lead-free ME materials. BaTiO3–CoFeO4 lead-free composites were the first ones investigated by Boomgaard et al. in 1978 and were found to exhibit ME coefficients of 130 mV/cm Oe. Since that time, few studies have been conducted on lead-free ME composites, as shown in Table 6.9, mainly because of the poor piezoelectric performance of lead-free materials. This problem still remains, but the emphasis on developing lead-free ME composites has increased due to environmental concerns.

Table 6.9

List of lead-free magnetoelectric composites

YearCompositionsTypeDC bias/frequencydE/dH (mV/cm Oe)References
2005BaTiO3–CoFe2O4Particulate ...

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