Negative magnetostrictive paper formed by dispersing CoFe 2 O 4 particles in cellulose nanofibrils.

Authors :: Keino T
Rova L
Gallet-Pandellé A
Kurita H
Narita F
Source :: Scientific reports [Sci Rep] 2023 Apr 15; Vol. 13 (1), pp. 6144. Date of Electronic Publication: 2023 Apr 15.
Publication Year :: 2023
Abstract: Polymers are often combined with magnetostrictive materials to enhance their toughness. This study reports a cellulose nanofibril (CNF)-based composite paper containing dispersed CoFe <subscript>2</subscript> O <subscript>4</subscript> particles (CNF-CoFe <subscript>2</subscript> O <subscript>4</subscript> ). Besides imparting magnetization and magnetostriction, the incorporation of CoFe <subscript>2</subscript> O <subscript>4</subscript> particles decreased the ultimate tensile strength and increased the fracture elongation of the CNF-CoFe <subscript>2</subscript> O <subscript>4</subscript> composite paper. CNF was responsible for the tensile properties of CNF-CoFe <subscript>2</subscript> O <subscript>4</subscript> composite paper. Consequently, the magnetic and magnetostrictive properties and tensile properties of CNF-CoFe <subscript>2</subscript> O <subscript>4</subscript> composite paper can be controlled by changing the mixture ratio of CNF and CoFe <subscript>2</subscript> O <subscript>4</subscript> particles.<br /> (© 2023. The Author(s).)

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