Magnetostriction of Magnetite
Alfred University. Faculty of Ceramic Engineering. Kazuo Inamori School of Engineering
The magnetostriction of Fe3O4 was measured, using the strain gauge technique. Two methods were used to measure the magnetostrictive behavior of single crystals and polycrystalline samples as a function of orientation and temperature. The measurements show that magnetostriction does not play an important part in causing a peak in initial permeability in magnetite near its low-temperature transition. Another conclusion is that magnetostriction measurements can be used for this type of material as a tool to detect changes in the direction of easy magnetization.
Stull, John, Magnetostriction, Magnetite