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Boron’s effect on martensitic transformation and magnetocaloric effect in Ni43Mn46Sn11Bx alloys

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6 Author(s)
Xuan, H.C. ; Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China ; Wang, D.H. ; Zhang, C.L. ; Han, Z.D.
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The most used method for changing the martensitic transformation temperatures in the ferromagnetic shape memory alloys is tuning the valence election concentration e/a. In this paper, we report an alternative way, i.e., introducing few interstitial boron atoms in Ni43Mn46Sn11 alloy. The experimental results show that the martensitic transformation temperatures increase with the increasing boron content remarkably and large magnetic entropy changes can be obtained in these alloys. A possible origin of the enhanced martensitic transformation temperatures and large magnetic entropy changes is discussed in this paper.

Published in:

Applied Physics Letters  (Volume:92 ,  Issue: 10 )

Date of Publication:

Mar 2008

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