Magnetic phase transformation material, method for producing magnetic phase transformation material and use of magnetic phase transformation material

摘要

A magnetic phase-transformation material with the formula Ni a-m Mn b-n Co m+n Ti c is provided, wherein a + b + c = 100, 20 a ‰¤ 90, 5 ‰¤ b 50, 5 ‰¤ c ‰¤ 30, 0‰¤m‰¤a, 0‰¤n‰¤b, 0‰¤m+na+b, and wherein, any one or combination of a, b, c, m, n represent an atomic percentage content. The magnetic phase-transformation material has properties of high toughness, high deformation rate, ferromagnetism and magnetic field-driven martensitic phase transformation, which can be widely used in various fields including high-strength and high-toughness actuators, temperature and/or magnetic sensitive elements, magnetic refrigeration devices and equipments, magnetic heat pump devices, magnetic memories, micro-electromechanical devices and systems, and thermomagnetic power generators or transducers.