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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592
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Flexible Magnetostrictive Nanocellulose Composites for Actuation, Sensing, and Energy Harvesting Applications

1) Electron micrograph of dual layer CNF-Terfonl-D film used for

magnetostrictive experiments
2) Deflection of dual layer magnetostrictive CNF films with various alignments.
Modified from Yermakov et al. (2020)
Frontiers in Materials, 7(38), 1-10
1) Electron micrograph of dual layer CNF-Terfonl-D film used for magnetostrictive experiments 2) Deflection of dual layer magnetostrictive CNF films with various alignments. Modified from Yermakov et al. (2020) Frontiers in Materials, 7(38), 1-10
Snapshot: Cellulose nanofibril films embedded with magnetostrictive particles were shown to predictably bend under a magnetic field and to change their magnetic properties under stress, making these composites potential candidates as actuators, sensors, and energy harvesting applications
Summary:

Researchers at the Forest Products Laboratory and University of Wisconsin-Milwaukee created composites consisting of cellulose nanofibrils and Terfenol-D magnetostrictive particles. Various constructs of the materials were created, including laminating multiple layers with and without magnetostrictive particles. Magnetostrictive particles were also oriented in various configurations during fabrication. The effects of laminates and particle orientation on the magnetostrictive (in which a magnetic field creates shape changes) and Villari (change in magnetic properties due to stress) were examined. Composites containing particles with in-plane alignment had the greatest sensitivity to magnetic field for actuation but the lowest performance for stress sensing or energy harvesting applications. Composites with additional CNF layers exhibit markedly improved sensitivity in Villari experiments.
Princpal Investigator(s):
 Sabo, Ronald C.


Research Location:
  • FPL


External Partners:
  • Rani Elhajjar and Chui Law - University of Wisconsin

Fiscal Year: 2020
Highlight ID: 1683
 
Resources: