2003/12/25 by V. V. Khovailo, T. Abe, V. V. Koledov +6
Physics and Astronomy · #cond-mat.mtrl-sci
published as Materials Transactions 44 (2003), pp. 2509-2512 · 4 pages, 3 figures
arxiv created 2003/12/25 · arxiv updated 2009/12/01
Differential scanning calorimetry (DSC) and magnetic measurements were performed to study the influence of ferromagnetic 3-d transition elements Fe and Co on structural and magnetic properties of ferromagnetic shape memory alloys Ni2MnGa. Addition of Fe or Co on the Ni sites decreases the temperature of martensitic phase transition Tm, whereas addition of Co on the Mn sites results in a considerable increase of Tm. Magnetic measurement revealed that Curie temperature TC increases upon substitution of Fe or Co for Ni. This observation is of importance for design of high temperature ferromagnetic shape memory alloys.