Panda, A K and Kumar, Arvind and Ghosh, M and Mitra, A (2008) Development of Ni-Mn-Ga-based ferromagnetic shape memory alloy by rapid solidification route. Journal of Magnetism and Magnetic Materials, 320 (20). pp. 730-733.
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The ferromagnetic shape memory alloy with nominal composition of Ni52.5Mn24.5Ga23(at%) was developed by the melt-spinning technique. The as-spun ribbon showed dominant L21 austenitic (cubic) structure with splitting of primary peak in the X-ray diffractogram indicating existence of a martensitic feature. The quenched-in martensitic plates were revealed from Transmission electron microscopy (TEM). Increase of magnetisation at low-temperature rise indicates martensite to austenite transformation and its reverse with a drop in magnetisation during cooling cycle. The martensite to austenite transformation can be made spontaneous at higher magnetic field.
|Uncontrolled Keywords:||Shape memory alloy; Melt-spun ribbons; Martensitic transformation; Magnetisation|
|Divisions:||Material Science and Technology|
|Deposited By:||Sahu A K|
|Deposited On:||03 Jun 2010 10:22|
|Last Modified:||05 Jul 2012 15:50|
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