Use of cubic rare earth-iron laves phase intermetallic compounds as magnetostrictive transducer materials
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsNorman C. Koon, Albert I. Schindler
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Abstract
A magnetostrictive device capable of large magnetostrictive strains is produced from RFe.sub.2 compounds wherein R is a rare earth element.
Claims6
A method of converting electromagnetic energy to mechanical energy which comprises subjecting a magnetostrictive compound represented by the formula R'.sub.x R".sub.(1-x) Fe.sub.2 wherein R' and R" are different rare earth elements and are selected from the class consisting of holmium, erbium, and dysprosium and x ranges from 0 to 1, said compound being formed into a magnetostrictive device element, to a variation in magnetic field, whereby mechanical energy is produced in the form of a change in physical size of said magnetostrictive compound.
A magnetostrictive compound having the formula RFe.sub.3 wherein R is a rare earth selected from the class consisting of holmium, erbium, dysprosium.
Dependencies are inferred from the claim text.