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Tuesday, November 8, 2011: 3:20 PM
Grand Ballroom C (Gold Coast Hotel )
Ferromagnetic shape memory alloys such as Ni-Mn-Ga have emerged as an important class of
high damping materials in recent years, not only due to their characteristic
martenstic-austenitic transformation similar to the shape memory alloys, but also owing
to their additional magnetically controlled reorientation of martenstic twin variants.
However, the intrinsic brittleness of Ni-Mn-Ga alloys limited their application.
Recently, more attentions are put on Ni-Mn-Ga particle/polymer composite materials. The
damping capacity of 30% Ni-Mn-Ga /epoxy resin composite is improved by the orientation
magnetic field applied along the long direction of sample during sample fabricating. The
IF value of magnetic field orientated composite increases, when the magnetic field is
applied during damping test along the orientation magnetic field.
high damping materials in recent years, not only due to their characteristic
martenstic-austenitic transformation similar to the shape memory alloys, but also owing
to their additional magnetically controlled reorientation of martenstic twin variants.
However, the intrinsic brittleness of Ni-Mn-Ga alloys limited their application.
Recently, more attentions are put on Ni-Mn-Ga particle/polymer composite materials. The
damping capacity of 30% Ni-Mn-Ga /epoxy resin composite is improved by the orientation
magnetic field applied along the long direction of sample during sample fabricating. The
IF value of magnetic field orientated composite increases, when the magnetic field is
applied during damping test along the orientation magnetic field.