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CLC number: TM27; TM619

On-line Access: 2013-04-03

Received: 2012-09-10

Revision Accepted: 2013-01-11

Crosschecked: 2013-03-18

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Journal of Zhejiang University SCIENCE C 2013 Vol.14 No.4 P.283-287


Resin-bonded NdFeB micromagnets for integration into electromagnetic vibration energy harvesters

Author(s):  Pei-hong Wang, Kai Tao, Zhuo-qing Yang, Gui-fu Ding

Affiliation(s):  School of Physics and Material Science, Anhui University, Hefei 230039, China; more

Corresponding email(s):   wangpeihong2002@ahu.edu.cn

Key Words:  NdFeB, Micromagnet, Resin-bonded, Electromagnetic vibration energy harvester

Pei-hong Wang, Kai Tao, Zhuo-qing Yang, Gui-fu Ding. Resin-bonded NdFeB micromagnets for integration into electromagnetic vibration energy harvesters[J]. Journal of Zhejiang University Science C, 2013, 14(4): 283-287.

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author="Pei-hong Wang, Kai Tao, Zhuo-qing Yang, Gui-fu Ding",
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publisher="Zhejiang University Press & Springer",

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%T Resin-bonded NdFeB micromagnets for integration into electromagnetic vibration energy harvesters
%A Pei-hong Wang
%A Kai Tao
%A Zhuo-qing Yang
%A Gui-fu Ding
%J Journal of Zhejiang University SCIENCE C
%V 14
%N 4
%P 283-287
%@ 1869-1951
%D 2013
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.C12MNT08

T1 - Resin-bonded NdFeB micromagnets for integration into electromagnetic vibration energy harvesters
A1 - Pei-hong Wang
A1 - Kai Tao
A1 - Zhuo-qing Yang
A1 - Gui-fu Ding
J0 - Journal of Zhejiang University Science C
VL - 14
IS - 4
SP - 283
EP - 287
%@ 1869-1951
Y1 - 2013
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.C12MNT08

A micromachining technique is presented for the fabrication of resin-bonded permanent magnets in the microscale. Magnetic paste is prepared from ndFeB powder and an epoxy resin, filled into lithographically defined photoresist molds or metal molds, and formed into resin-bonded magnets after curing at room temperature. A coercivity of 772.4 kA/m, a remanence of 0.27 T, and a maximum energy product of 22.6 kJ/m3 have been achieved in an ndFeB disk micromagnet with dimensions of Ф200 μm×70 μm. Based on the developed micro-patterning of resin-bonded magnets, a fully integrated electromagnetic vibration energy harvester has been designed and fabricated. The dimensions of the energy harvester are only 4.5 mm×4.5 mm×1.0 mm, and those of the micromagnet are 1.5 mm×1.5 mm×0.2 mm. This microfabrication technique can be used for producing permanent magnets tens or hundreds of micrometers in size for use in various magnetic devices.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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