Enhancement of Magnetoelectric Conversion Achieved by Optimization of Interfacial Adhesion Layer in Laminate Composites

ACS Applied Materials & Interfaces
Geon-Tae HwangJungho Ryu

Abstract

We report the effect of epoxy adhesion layers with different mechanical or physical property on a magnetoelectric (ME) composite laminate composed of FeBSi alloy (Metglas)/single-crystal Pb(Mg1/3Nb2/3)O3-Pb(Zr,Ti)O3/Metglas to achieve an improved ME conversion performance. Through theoretical simulation, it was revealed that the Young's modulus and the thickness of interfacial adhesives were major parameters that influence the conversion efficiency in ME composites. In the experimental evaluation, we utilized three epoxy materials with a distinct Young's modulus and adjusted the average thickness of the adhesion layers to optimize the ME conversion. The experimental results show that a thin epoxy layer with a high Young's modulus provided the best performance in the inorganic-based ME conversion process. By tailoring the interfacial adhesion property, the ME laminate generated a high conversion coefficient of 328.8 V/(cm Oe), with a mechanical quality factor of 132.0 at the resonance mode. Moreover, we demonstrated a highly sensitive alternating current magnetic field sensor that had a detection resolution below 10 pT. The optimization of the epoxy layers in the ME laminate composite provided significant enhancement of the ME r...Continue Reading

References

Apr 1, 1990·Journal of Applied Biomaterials : an Official Journal of the Society for Biomaterials·A U DanielsK P Andriano
Aug 18, 2006·Nature·W EerensteinJ F Scott
May 24, 2008·Nature Materials·Manuel Bibes, Agnès Barthélémy
Oct 16, 2013·ACS Applied Materials & Interfaces·M SilvaJ M Barandiarán
Sep 7, 2016·Advanced Materials·Zhiguang WangNian-Xiang Sun
Jan 10, 2017·Advanced Materials·Haribabu PalneediJungho Ryu
Mar 4, 2017·Advanced Materials·Zhaoqiang ChuShuxiang Dong

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