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, 0.35x0.50 and
1.70y2.00), B is represented by Formula 2 DytT1-t
(0.37t1.00), and C contains T, to produce a magnetostrictive
material represented by Formula 3 (TbvDy1-v)Tw (0.27v0.50,
and 1.70w2.00), 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.
