TY - GEN
T1 - Martensitic transformation in Ni-Mn-Ga thin films deposited on alumina
AU - Hagier, M.
AU - Chernenko, V. A.
AU - Ohtsuka, M.
AU - Besesseghini, S.
AU - Müller, P.
PY - 2009
Y1 - 2009
N2 - Ni-Mn-Ga magnetic shape memory alloys (MSMAs) tend to undergo a large, reversible deformation upon the application of a magnetic field. This deformation is attributed to twin boundary motion in the martensitic phase. In an effort to utilize the magneto-mechanical behavior of Ni-Mn-Ga polycrystalline thin films for micro-sensors and actuators, the behavior of NiMn-Ga thin films is paid a great attention last few years. Substrate curvature measurements on Ni-Mn-Ga films, deposited on Al2O3 ceramics, were performed. The martensitic transformation in the film is manifested by an anomalous stress change accompanied by thermal hysteresis. The stress-curvature experiments display a stress relaxation during the martensitic transformation of approximately 30-100 MPa, depending on film thickness.
AB - Ni-Mn-Ga magnetic shape memory alloys (MSMAs) tend to undergo a large, reversible deformation upon the application of a magnetic field. This deformation is attributed to twin boundary motion in the martensitic phase. In an effort to utilize the magneto-mechanical behavior of Ni-Mn-Ga polycrystalline thin films for micro-sensors and actuators, the behavior of NiMn-Ga thin films is paid a great attention last few years. Substrate curvature measurements on Ni-Mn-Ga films, deposited on Al2O3 ceramics, were performed. The martensitic transformation in the film is manifested by an anomalous stress change accompanied by thermal hysteresis. The stress-curvature experiments display a stress relaxation during the martensitic transformation of approximately 30-100 MPa, depending on film thickness.
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M3 - Conference contribution
AN - SCOPUS:77957867312
SN - 9780873397452
T3 - Proceedings of the International Conference on Martensitic Transformations, ICOMAT-08
SP - 453
EP - 457
BT - Proceedings of the International Conference on Martensitic Transformations, ICOMAT-08
T2 - 12th International Conference on Martensitic Transformations, ICOMAT-08
Y2 - 29 June 2008 through 5 July 2008
ER -