Understanding Motion of Twin Boundary—A Key to Magnetic Shape Memory Effect

2014 ◽  
Vol 50 (11) ◽  
pp. 1-7 ◽  
Author(s):  
Oleg Heczko
Keyword(s):  
Shape Memory ◽  
Twin Boundary ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Magnetic Shape Memory

Temperature Dependence of Magnetic Shape-Memory Effect and Martensitic Structure of NiMnGa Alloy

2002 ◽  
Vol 394-395 ◽  
pp. 537-540 ◽  
Author(s):  
Nadiya Glavatska ◽  
G. Mogylny ◽  
Ilya Glavatskyy ◽  
A. Tyshchenko ◽  
Outi Söderberg ◽  
...  
Keyword(s):  
Shape Memory ◽  
Temperature Dependence ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Martensitic Structure ◽  
Magnetic Shape Memory

Ferromagnetic Shape Memory Heusler Alloys

2012 ◽  
Vol 189 ◽  
pp. 189-208 ◽  
Author(s):  
Vijay Srivastava ◽  
Kanwal Preet Bhatti
Keyword(s):  
Magnetic Properties ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Heusler Alloy ◽  
Heusler Alloys ◽  
Structural Similarity ◽  
Magnetic Shape Memory ◽  
Half Metallicity ◽  
Ferromagnetic Shape Memory

Although Heusler alloys have been known for more than a century, but since the last decade there has been a quantum jump in research in this area. Heusler alloys show remarkable properties, such as ferromagnetic shape memory effect, magnetocaloric effect, half metallicity, and most recently it has been shown that it can be used for direct conversion of heat into electricity. Heusler alloys Ni-Mn-Z (Z=Ga, Al, In, Sn, Sb), show a reversible martensitic transformation and unusual magnetic properties. Other classes of intermetallic Heusler alloy families that are half metallic (such as the half Heusler alloys Ni-Mn-Sb and the full Heusler alloy Co2MnGe) are attractive because of their high Curie temperature and structural similarity to binary semiconductors. Unlike Ni-Mn-Ga, Ni-Mn-In and Ni-Mn-Sn transform from ferromagnetic austenite to non-ferromagnetic martensite. As is consistent with the Clausius-Clapeyron equation, the martensitic phase transformation can be manipulated by a magnetic field, leading to possible applications of these materials enabling the magnetic shape memory effect, energy conversion and solid state refrigeration. In this paper, we summarize the salient features of Heusler alloys, like the structure, magnetic properties and potential application of this family of alloys in industry.

scholarly journals Magnetic shape memory effect in the paramagnetic state inRCu2(R=rareearth) antiferromagnets

2006 ◽  
Vol 73 (6) ◽  
Author(s):  
Sebastian Raasch ◽  
Mathias Doerr ◽  
Andreas Kreyssig ◽  
Michael Loewenhaupt ◽  
Martin Rotter ◽  
...  
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Paramagnetic State ◽  
Magnetic Shape Memory

A novel foil actuator using the magnetic shape memory effect

2011 ◽  
Vol 20 (9) ◽  
pp. 094009 ◽  
Author(s):  
M Kohl ◽  
B Krevet ◽  
S R Yeduru ◽  
Y Ezer ◽  
A Sozinov
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Magnetic Shape Memory
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