TY - JOUR
T1 - Kinetic arrest behavior in martensitic transformation of NiCoMnSn metamagnetic shape memory alloy
AU - Umetsu, R. Y.
AU - Ito, K.
AU - Ito, W.
AU - Koyama, K.
AU - Kanomata, T.
AU - Ishida, K.
AU - Kainuma, R.
N1 - Funding Information:
The authors would like to thank Professors H. Morito and H. Yamane of Institute of Multidisciplinary Research for Advanced Materials, Tohoku University for helpful of the XRD measurements. This study was supported by Grant-in-Aids from Core Research for Evolutional Science and Technology (CREST) , J apan Science and Technology Agency (JST) and from the Japanese Society for the Promotion of Science (JSPS) , by a Grant-in-Aid for Scientific Research, and by the Global Center of Excellence (GCOE) Program “Materials Integration” (International Center of Education and Research), Tohoku University, MEXT, Japan. A part of this work was carried out at the Center for Low Temperature Science, Institute for Materials Research, Tohoku University.
PY - 2011/2/3
Y1 - 2011/2/3
N2 - High-field magnetic measurements were carried out in order to investigate behaviors of field-induced reverse martensitic transformation and kinetic arrest of NiCoMnSn metamagnetic shape memory alloy. In the thermomagnetization curves, it was confirmed that the reverse martensitic transformation temperature decreases 67 K by applying magnetic field of 5 T, while in the magnetic field cooling process under 5 T, martensitic transformation does not occur down to low temperatures. Equilibrium magnetic field, defined from the critical magnetic fields of the metamagnetic evidence in the magnetization curves, exhibits almost constant below about 100 K, suggesting that the entropy change becomes zero, which is considered to cause kinetic arrest behavior.
AB - High-field magnetic measurements were carried out in order to investigate behaviors of field-induced reverse martensitic transformation and kinetic arrest of NiCoMnSn metamagnetic shape memory alloy. In the thermomagnetization curves, it was confirmed that the reverse martensitic transformation temperature decreases 67 K by applying magnetic field of 5 T, while in the magnetic field cooling process under 5 T, martensitic transformation does not occur down to low temperatures. Equilibrium magnetic field, defined from the critical magnetic fields of the metamagnetic evidence in the magnetization curves, exhibits almost constant below about 100 K, suggesting that the entropy change becomes zero, which is considered to cause kinetic arrest behavior.
KW - Field-induced reverse martensitic transformation
KW - Magnetic properties
KW - Martensitic phase transformation
KW - Nickel alloys
KW - Shape memory alloys
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U2 - 10.1016/j.jallcom.2010.10.176
DO - 10.1016/j.jallcom.2010.10.176
M3 - Article
AN - SCOPUS:78651355627
SN - 0925-8388
VL - 509
SP - 1389
EP - 1393
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - 5
ER -