|
|||||
|
|
The effect of mechanical stress on Ni63.8Mn11.1Ga25.1 microwire crystalline structure and properties |
|
| Affiliation: | 1. BCMaterials, Basque Center for Materials, Applications and Nanostructures, Leioa, Spain;2. Department of Electricity & Electronics, University of the Basque Country, Bilbao, Spain;3. Karlsruhe Institute of Technology, IMT, Karlsruhe, Germany;4. Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, China;5. Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama, Japan;6. Instituto Potosino de Investigación Científica y Tecnológica A.C., San Luis Potosí, Mexico;7. Ikerbasque, Basque Foundation for Science, Bilbao, Spain |
| Abstract: | We studied structure and magnetic properties of Heusler alloy microwires. The dependence of the phase composition of the annealed microwires on the presence of glass coating has been found. The crystalline structure of the glass-coated samples is composed of two cubic crystalline phases of different density. The samples annealed without coating are in the single-phase state. The two-phase state is supposed to be caused by intrinsic stresses resulted from the action of opposite sign stresses in different microwire sections. The magnetic properties of the fabricated Heusler-type microwires differ from their bulk and thin film counterparts. Annealing of microwires considerably affect magnetic properties at room temperature. Unusual magnetic behavior is connected with two-phase structure of microwires. |
| Keywords: | A Composites A Magnetic intermetallics B Crystallography B Magnetic properties B Martensitic transformations B Shape-memory effects |
| 本文献已被 ScienceDirect 等数据库收录！ | |