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Resin-bonded NdFeB micromagnets for integration into electromagnetic vibration energy harvesters
- Resin-bonded NdFeB micromagnets for integration into electromagnetic vibration energy harvesters
- Frontiers of Information Technology & Electronic Engineering Vol. 14, Issue 4, Pages: 283-287(2013)
- Affiliations：
1.School of Physics and Material Science, Anhui University, Hefei 230039, China
2.Institute of Micro/Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, China
- Author bio：
[ "WANG Pei-hong, E-mail: wangpeihong2002@ahu.edu.cn" ]
- Funds：
DOI：10.1631/jzus.C12MNT08
CLC： TM27;TM619Received：10 September 2012，
Revised：2013-;3-18，
Published：2013-04
- Accepted：
Scan QR Code
Pei-hong WANG, Kai TAO, Zhuo-qing YANG, et al. Resin-bonded NdFeB micromagnets for integration into electromagnetic vibration energy harvesters[J]. Frontiers of Information Technology & Electronic Engineering, 2013, 14(4): 283-287.
Pei-hong WANG, Kai TAO, Zhuo-qing YANG, et al. Resin-bonded NdFeB micromagnets for integration into electromagnetic vibration energy harvesters[J]. Frontiers of Information Technology & Electronic Engineering, 2013, 14(4): 283-287. DOI： 10.1631/jzus.C12MNT08.
摘要
Abstract
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/m
3
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.
关键词
Keywords
references
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