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研究了Ｔｂ_(０．３)Ｄｙ_(０．７)（Ｆｅ，Ｍ）_(１．９５)合金的声速υ和弹性模量Ｅ与磁化磁场的关系，首次观测到出现 Ｖｍｉｎ和 Ｅｍｉｎ值的磁场与出现 Ｘｍａｘ和 ｄ３３的磁场是一致的，均在 ２０ｋＡ／ｍ左右；这在工程上有重要意义，但这种关系的物理机制尚不清楚
The relationship between the acoustic velocity υ, the elastic modulus E and the magnetic field of Tb_ (0.3) Dy_ (0.7) (Fe, M) _ (1.95) alloy was studied. The magnetic field with Vmin and Emin This is consistent with the occurrence of a magnetic field of Xmax and d33 both at around 20 kA / m; this is of great importance in engineering, but the physical mechanism of this relationship is not clear