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    Description

    Magnetostrictive composite known as magnetostrictive nanocellulose membrances (MNMs) were fabricated by embedding Terfeonol-D particles into cellulose nanofibers (CNFs). MNMs inherit flexibility and biodegradability from CNF while exhibiting magnetomechanical responses; as such, the valuable rare-earth (Terfenol-D) particles can be recycled. Various orientations of the Terfenol-D particles were induced in the MNMs, and those with in-plane alignment showed the strongest magnetostrictive effect but the lowest Villari effect. Materials with such a unique combination of properties dovetail nicely with Internet of Things that require ubiquitous sensing, actuation, and energy harvesting in one package.

    Publication Notes

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    Citation

    Yermakov, Aleksey; Thompson, Andrew; Coaty, Christopher; Sabo, Ronald; Law, Chiu Tai; Elhajjar, Rani. 2020. Flexible magnetostrictive nanocellulose membranes for actuation, sensing, and energy harvesting applications. Frontiers in Materials. 7: 1. https://doi.org/10.3389/fmats.2020.00038.

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    Keywords

    Magnetostrictive composite, cellulose nanofiber, terfenol-D, Villari effect, magnetostriction

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https://www.fs.usda.gov/treesearch/pubs/59812