Fabrication and characterization of bonded ndfeb microstructures for microelectromechanical systems applications

Kai Tao, Gui Fu Ding, Zhuo Qing Yang, Yan Wang, Pei Hong Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

A micromachining technique has been developed for the fabrication of microscale polymer-bonded magnet. Two types of lithographically defined molds, photoresist mold and electroplated metal mold, were introduced. Photoresist mold is convenient, while electroplated metal mold can be fabricated on the glass or steel substrate which can bear much more compression. NdFeB films of thickness between 50 and 500 μm were prepared by micro-patterning of composites containing 83-95wt% of commercial NdFeB powder after curing at the room temperature. Magnetic properties mainly depend on the types and percentage of volume loading of magnetic powder. Coercivity of 772.4kA/m (9.70kOe), remanence of 275.1mT (2.751kG), and energy product of 22.6kJ/m3 (2.8MGOe) have been achieved. This easily developed magnet could be a promising candidate for applications in magnetic microelectromechanical systems (MEMS).

Original languageEnglish
Title of host publicationMechatronics and Intelligent Materials
Pages561-564
Number of pages4
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 International Conference on Mechatronics and Intelligent Materials, MIM 2011 - Lijiang, China
Duration: 21 May 201122 May 2011

Publication series

NameAdvanced Materials Research
Volume211-212
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Mechatronics and Intelligent Materials, MIM 2011
Country/TerritoryChina
CityLijiang
Period21/05/1122/05/11

Keywords

  • Integration
  • Magnetic powder
  • Permanent micromagnet
  • Surface micromachining

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