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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Advanced Soft Magnets and Magnetocaloric Materials: An FMD Symposium in Honor of Victorino Franco
Presentation Title Metal Amorphous Nanocomposite (MANC) Materials for High High Speed Axial Motors
Author(s) Michael E. McHenry, K. Schneider, Satoru Simizu, James Egbu, M. P. DeBoer, Eric Theisen
On-Site Speaker (Planned) Michael E. McHenry
Abstract Scope Metal amorphous nanocomposites (MANC) are soft magnetic materials (SMMs) studied for magnetic tape wound core (TWC) components in high-speed motor (HSM) applications. MANCs consist of soft magnetic nanocrystals embedded in a continuous, resistive amorphous matrix, providing low eddy current losses. TWC performance arising from low core loss enables magnetic switching at 1- 100 kHz; (Fe70Ni30)85Nb0.5B14.5Si0 (Bs = 1.5 T) and (Fe70Ni30)80Nb4B14Si2 MANCs (W1T,400Hz = 0.5 W/Kg, Hc = 2.4 A/m, ýr > 35000). Co additions increase inductions and Curie temperatures and reduce magnetostriction to ~1 ppm. Axial HSMs require TWCs to have robust mechanical properties sufficient for: (1) core winding and strain annealing; (2) manufacturing rotor laminates and slots (3) stress tolerance at high rotational speeds. We summarize manufacturing issues for MANC rotors and stators using RE-lean materials as studied in USDOE AMO and VTO projects. Efforts include (1) production steps for TWCs; (2) MANC ribbon mechanical properties (strength, Weibull and Young’s Moduli); (3) epoxy wetting of MANCs for vacuum impregnation bonding; (4) vacuum impregnation epoxy bonding for rotor mechanical integrity, (5) failure mechanisms and figure of safety issues in MANC/epoxy laminates. These target paths to efficient HSMs for powers of ~34 kW for EV applications. Considerations of alloy component criticality will be reviewed. A future path for high temperature motors and active cooling will also be presented in light of these motor topologies.
Proceedings Inclusion? Planned:


4f-electrons Driven Giant Magnetic and Optical Anisotropy in Site-substituted M-type Strontium-hexaferrite
A Bright Future for Magnetocaloric High-entropy Alloys
A Solution to the Permalloy Problem
Advancements in the Development of Magnetic Refrigerators Operating at Near Room Temperature
Advances in Additive Manufacturing of Metamagnetic Shape Memory Alloys for Magnetocaloric Applications
An Overview of Soft Magnetic Properties of Fe-based Alloys by Rapid Solidification and Additive Manufacturing for Sustainable Applications
Assessing Rapid Solidification Processing to Produce Magnetocaloric Alloys for Gas Liquefaction
Connecting Soft Magnetic Core Performance to Power Converter Design
Effective Evaluation Setups for the Real Cooling Performance of Magnetocaloric Materials
Entropy Change at a Demagnetization Broadened First Order Transition
Essential Perspective on Magnetic and Thermodynamical States of Fe-based Magnetocaloric Compounds Inside the AMR-type Module
Evaluation of Martensite Transformation Temperatures Using Magnetometry
Evidence of Large Cryogenic Magnetocaloric Effect in GdNi1-xCox (0 ≤ x ≤ 0.15)
Fe Based Magnetic Carbon Composites
Induced Magnetic Anisotropy in Soft Magnetic Nanocomposites: A Review and Recent Insights
Machine Learning Assisted Development of Magnetocaloric Materials
Magnetic and Magnetocaloric Properties of R2In Intermetallic Compounds with Reversible First-order Transformations
Magnetic Field Suppression of the Martensitic Transition in NiMn-based Metamagnetic Shape Memory Heusler Compounds
Magnetic Materials for Energy Efficient Applications: Studying Materials Out of Their Comfort Zone
Magneto-optics, Revisited
Magnetocaloric Composite Wires for Regenerators
Magnetocaloric Effect in Amorphous and Nanocomposite Alloys
Magnetocaloric Materials for the Liquefaction of Hhydrogen
Magnetoelastic Coupling Transition Behavior in (Mn,Ni,Fe)2(P,Si) Alloys
Metal Amorphous Nanocomposite (MANC) Materials for High High Speed Axial Motors
Multi-caloric Experimental Investigation of FeSMA and MetaSMA Materials NiMn-based: Cast Alloys, Sintered Samples and Melt Spun Ribbons
Nanoscale Phase Separation in Rare-earth Containing Magnetocaloric Compounds
The Proposed Minimum Efficiency Standards for Distribution Transformers and the Impact to the Supply of Electrical and Amorphous Steels
Thermal First Order Reversal Curves (TFORC) measurements and properties of (NiMnSi)0.66(Fe2Ge)0.34 alloy
Tuning Magnetic Materials with Stress and Electric Field

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