Magnetostriction (cf. electrostriction) is a property of ferromagnetic materials that causes them to change their shape or dimensions during the process of magnetization. The variation of materials`s magnetization due to the applied magnetic field changes the magnetostrictive strain until reaching its saturation value, λ. The effect was first id.... Found on http://en.wikipedia.org/wiki/Magnetostriction
change in the dimensions of a ferromagnetic material, such as iron or nickel, produced by a change in the direction and extent of its magnetization. ... Found on http://www.britannica.com/eb/a-z/m/11
The change of size and/or shape of aferromagnetic material due to the application of a magnetic field. See also: Piezoelectric. Found on https://www.encyclo.co.uk/local/20687