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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Materials Engineering of Soft Magnets for Power and Energy Applications
Presentation Title Direct Measurement of the Magnetocaloric Effect in NiMnIn Ribbons
Author(s) Christian Omar Aguilar, Pablo Alvarez-Alonso, Daniel Salazar, Horacio Flores-Z˙˝iga, Volodymyr Chernenko
On-Site Speaker (Planned) Christian Omar Aguilar
Abstract Scope Magnetic shape memory alloys (MSMAs) are unique materials thanks to large changes in their magnetic properties induced by the martensitic transformation. These changes are at the origin of high magnetocaloric responses, whereby these alloys have attracted much attention due their potential use in magnetic refrigeration. We studied Ni<sub>50</sub>Mn<sub>35</sub>In<sub>15</sub> alloys melt-spun at different wheel speeds (10, 20, 30, 40, and 50 m/s) to analyse the impact of the cooling rate on the structure, magnetic and magnetocaloric properties. We have studied the magnetocaloric effect (MCE) associated to both the MT and the magnetic phase transition in the austenite phase by estimating the magnetic entropy change ΔS<sub>M</sub> from magnetization measurements, and measuring directly the field-induced adiabatic temperature change, ΔT<sub>ad</sub>. Ribbons present a conventional MCE (ΔT<sub>ad</sub>~2.2 K at ΔH=19 kOe for v=10 m/s) as a consequence of the ferro-to-paramagnetic transition in the austenite phase, and inverse ΔT<sub>ad</sub> ~-1.1 K under ΔH=19 kOe at MT.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced Magnetic Polymer Nanocomposites for High Frequency Device Applications
Advanced Magneto-Optical Domain Analysis in Soft Magnetic Materials
Advanced Soft Magnetic Materials for Highly-efficient Electric Motors
Candidate Coatings for Soft Magnet Composites: Insights Gained from Multiscale Electron Microscopy
Challenges to the Commercial Acceptance of Amorphous and Nanocrystalline Soft Magnetic Materials
Combinatorial High-throughput Discovery of Magnetic Materials in Thin Films
Consolidation and Behavior of Bulk Iron Nitride Soft Magnets via Spark Plasma Sintering
Consolidation of Bulk Ferrimagnetic Rare Earth Iron Garnets
Crystallization Products and Strain Annealing Effects in (FexNi1-x)80Nb4Si2B14 Metal Amorphous Nanocomposites (MANCs)
Development of Fe-based Bulk Metallic Glasses with Both High Saturation Flux Density and High Glass Forming Ability
Development of Mold Inductor for Power Conversion System
Direct Measurement of the Magnetocaloric Effect in NiMnIn Ribbons
Effect of Annealing Time on the Texture of a 2.8% Si Non-Oriented Electrical Steel after Inclined and Skew Rolling
Effects of Cooling Rate on 6.5% Silicon Steel Ordering
Ferrite-coated Fe Soft Magnetic Composites: Balance of Magnetic Permeability and Electrical Resistivity
Large Magnetocaloric Effect in Ga Substituted NiMnIn Metamagnetic Shape Memory Alloys
Magnetic Material Excited by Power Electronics in Electrical Engineering
Magnetic Properties of Shear-textured Fe-Si Sheet Produced by Simple Shear Deformation
Multi-parameter Magnetic Material Characterization for High Power Medium Frequency Converters
Nanocomposite Soft Magnetic Materials for High Frequency and High Power Conversion Applications
Novel Silicon Steel Nanocomposites via Severe Shear Deformation Approaches
Opportunities and Challenges in the Additive Manufacture of Soft Magnetic Silicon Steel Parts: Processing, Material Properties and Component Design
Structure-Processing-Property Relationships in High Temperature Nanocomposite Soft Magnets
Study of Temperature Dependent Magnetic Properties of Zr+4 and Ti+4 Substituted Cobalt Ferrites
Unique Magnetostriction of Fe68.8Pd31.2 Attributable to De-twinning Mechanism

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