Method for producing magnetostrictive material

Details Method for producing magnetostrictive material Method for producing magnetostrictive material

2006-01-31

2006-01-31

Sheehan, John P (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

C419S019000, C419S020000, C419S023000, C419S030000, C419S034000, C148S101000, C148S102000, C148S103000

Reexamination Certificate

active

06991686

ABSTRACT:
To provide a method for producing a magnetostrictive material of excellent magnetostrictive characteristics.The method for producing a magnetostrictive material, wherein a mixture composed of Starting Materials A, B and C is sintered, where A is represented by Formula 1 (TbxDy1-x)Ty(T is at least one metallic element selected from the group consisting of Fe, Ni and Co, 0.35<x≦0.50 and 1.70≦y≦2.00), B is represented by Formula 2 DytT1-t(0.37≦t≦1.00), and C contains T, to produce a magnetostrictive material represented by Formula 3 (TbvDy1-v)Tw(0.27≦v<0.50, and 1.70≦w≦2.00), wherein oxygen content is set at 500 to 3,000 ppm for Starting Material A and at 2,000 to 7,000 ppm for Starting Material B.

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