[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4283/JMAG.2011.16.3.211

Dynamic Magnetostriction Characteristics of an Fe-Based Nanocrystalline FeCuNbSiB Alloy

Chen, Lei (College of Optoelectronic Engineering, Chongqing University, The Key Laboratory for Optoelectronic Technology & Systems, Ministry of Education)
Li, Ping (College of Optoelectronic Engineering, Chongqing University, The Key Laboratory for Optoelectronic Technology & Systems, Ministry of Education)
Wen, Yumei (College of Optoelectronic Engineering, Chongqing University, The Key Laboratory for Optoelectronic Technology & Systems, Ministry of Education)

Publication Information

Journal of Magnetics / v.16, no.3, 2011 , pp. 211-215 More about this Journal

Abstract

The dynamic magnetostriction characteristics of an Fe-based nanocrystalline FeCuNbSiB alloy are investigated as a function of the dc bias magnetic field. The experimental results show that the piezomagnetic coefficient of FeCuNbSiB is about 2.1 times higher than that of Terfenol-D at the low dc magnetic bias $H_{dc}$ = 46 Oe. Moreover, FeCuNbSiB has a large resonant dynamic strain coefficient at quite low Hdc due to a high mechanical quality factor, which is 3-5 times greater than that of Terfenol-D at the same low $H_{dc}$ . Based on such magnetostriction characteristics, we fabricate a new type of transducer with FeCuNbSiB/PZT-8/FeCuNbSiB. Its maximum resonant magnetoelectric voltage coefficient achieves ~10 V/Oe. The ME output power reaches 331.8 ${\mu}W$ at an optimum load resistance of 7 $k{\Omega}$ under 0.4 Oe ac magnetic field, which is 50 times higher than that of the previous ultrasonic-horn-substrate composite transducer and it decreases the size by nearly 86%. The performance indicate that the FeCuNbSiB/PZT-8/FeCuNbSiB transducer is promising for application in highly efficient magnetoelectric energy conversion.

Keywords

nanocrystalline FeCuNbSiB alloy; magnetostrictive material; piezomagnetic coefficient; magnetic permeability; magnetoelectric effect;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)
Times Cited By Web Of Science : 0 (Related Records In Web of Science)
Times Cited By SCOPUS : 0

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