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Effect of Mn substitution on structural and magnetic properties of ferromagnetic shape memory alloys
- Source :
- Mechanics of Advanced Materials and Structures. 23:631-635
- Publication Year :
- 2016
- Publisher :
- Informa UK Limited, 2016.
-
Abstract
- The structure and the magnetic transitions have been investigated as a function of Mn in stoichiometric Ni2MnGa heusler alloys. Particular attention is paid to examine the linear increase of martensite transformation temperature on substituting Mn for Ga. It is observed that the martensite temperature increases and Curie temperature decreases with the effect of Mn content. Room-temperature magnetic measurements show the composition-dependent characteristics with decreasing magnetic saturation values and increasing coercivity values due to decrease in the magnetic exchange interaction strength with increasing Mn in place of Ga. The scanning electron microscopy image confirms that the Mn-rich alloys have the martensitic plates.
- Subjects :
- 010302 applied physics
Materials science
Condensed matter physics
Mechanical Engineering
General Mathematics
02 engineering and technology
Shape-memory alloy
Coercivity
021001 nanoscience & nanotechnology
Microstructure
01 natural sciences
Magnetization
Magnetic shape-memory alloy
Ferromagnetism
Mechanics of Materials
Martensite
0103 physical sciences
Curie temperature
General Materials Science
0210 nano-technology
Civil and Structural Engineering
Subjects
Details
- ISSN :
- 15376532 and 15376494
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Mechanics of Advanced Materials and Structures
- Accession number :
- edsair.doi...........ce06c52d286fe57296d0ddbee8a898a9