Magnetoelectric macro fiber composite

Ronnie Varghese, Shree Narayanan, Donald Leber, Ravindranath Viswan, Mingkai Mu, Mohan Sanghadasa, Shashank Priya

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


This paper describes the fabrication and performance results of a magnetoelectric macro fiber composite (ME MFC). The magnetoelectric composite was fabricated by bonding a magnetostrictive layer to a piezoelectric layer using a novel approach of low temperature transient liquid phase (LTTLP) bonding. The composite was diced into 150 micron wide fibers and bonded to a custom designed copper flexible circuit using a spin coated low viscosity room temperature curing epoxy. ME MFC's with varying ferrite thicknesses of 0.6 mm and 0.5 mm were fabricated and characterized for energy harvesting. The composite with 0.6 mm ferrite thickness achieved an open circuit voltage of 101 mV (ME voltage coefficient of 6740 mV/cmOe) and peak power of 3.1 nW across 356 kΩ matching load at 264 Hz.

Original languageEnglish (US)
Article number9328
Pages (from-to)64-70
Number of pages7
JournalSensors and Actuators, A: Physical
StatePublished - Nov 1 2015
Externally publishedYes

Bibliographical note

Funding Information:
The authors gratefully acknowledge the financial support from Air Force Office of Scientific Research (AFOSR) through Young Investigator Program and Office of Basic Energy Science, Department of Energy (S.P.). We are also greatly indebted to Justin Farmer CEHMS Laboratory manager for help with the experimental setup. We also would like to thank Bret Halpern of Jet Process Corporation, North Haven, CT for the solder deposition and T.J. Belton and Travis Belton of Moog Components Group Galax Operations, Galax, VA for flexible circuit fabrication.

Publisher Copyright:
© 2015 Elsevier B.V.


  • Energy harvesting
  • Low temperature bonding
  • Macro fiber composite
  • Magnetic sensor
  • Magnetoelectric composite


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