The invention discloses a high-performance bonded
rare earth magnetostrictive material and a preparation method thereof. The high-performance bonded
rare earth magnetostrictive material comprises the following raw materials, in parts by weight:3-5 parts of
metal terbium, 5-10 parts of
metal dysprosium, 15-20 parts of
metal iron, 10-15 parts of binders, 30-40 parts of
acetone solution, 10-15 parts of curing agents and 10-15 parts of
coupling agents. The method is characterized by blending the metal
terbium, the metal
dysprosium and the metal iron according to a ratio of 3:7:19 in
molar mass, and placing the mixture in a vacuum non-consumable arc furnace for
argon-filling melting to obtain an
alloy ingot; then, under the protection of
gasoline, smashing the
alloy ingot through an
ingot disc to obtain
powder particles having required particle sizes; then, mixing the obtained
powder particles with the binders, then, placing the mixture into the
acetone solution, stirring the solution and meanwhile, heating the solution with an
infrared lamp until the materials are uniformly blended and
acetone is volatilized completely; after cooling, adding the curing agents, and after carrying out full stirring and uniform blending, keeping the obtained mixture in a certain intensity of
magnetic field for a period of time; and then, carrying out compression moulding through a
hydraulic press, and finally, carrying out curing
processing. The tensile strength of the obtained material is enhanced, and the production cost is low.