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February 12, 2026AIP AdvancesOpen Access

Ultra-flexible magneto-elastic diaphragm for low-power actuation applications

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Authors

KMKhalil MoussiKing Abdullah University of Science and TechnologySMSofiane Ben MbarekSASelma Amara

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Implication

The design of a flexible diaphragm demonstrates effective actuation in low-power devices, indicating potential for diverse applications.

Key Points

  • The aim is to develop a flexible diaphragm that can actuate using low magnetic fields for various applications.
  • Developed a magneto-elastic diaphragm using Ecoflex 00-20 elastomer and NdFeB microparticles.
  • Fabricated using custom 3D-printed molds to ensure uniform thickness of approximately 300 μm.
  • Conducted vibrating sample magnetometry to assess magnetic properties.
  • Employed finite element modeling to predict deformation under loads.
  • Achieved electromagnetic actuation with a 600-turn coil using a 19 mT field.
  • Diaphragm showed a maximum central deflection of 5.6 mm at a magnetic field of 19 mT.
  • Stable performance maintained at excitation frequencies ranging from 1 to 5 Hz.
  • No degradation observed after more than 5000 actuation cycles.
  • Demonstrated better displacement and efficiency compared to earlier magnetic composites.

Cite This Study

Moussi et al. (2026) studied this question.

synapsesocial.com/papers/698d6dd15be6419ac0d5306fhttps://doi.org/10.1063/9.0001015
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