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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Powder Materials for Energy Applications
Presentation Title Investigation of the Powder Processing of Near-final Shape AlNiCo Magnets for Eventual Use in Electric Drive Motors
Author(s) Emily Rinko, Iver Anderson, Emma White, Wei Tang, Lin Zhou, Matthew Kramer
On-Site Speaker (Planned) Emily Rinko
Abstract Scope Although rare earth elements (REE) are highly localized and vulnerable to price instability, REE-based permanent magnets (PM) are frequently the magnet of choice for interior PM motors found in many electric vehicles. Alnico, a REE-free alternative that can operate at higher temperatures compared to REE-PMs, can be fabricated via advanced powder processing techniques to yield textured, large grained, near-final shape alnico PMs. However, recent findings indicate established processing could be improved for unique alnico alloys (designed to improve magnetic properties) due to significant deviations observed from theoretical grain growth kinetics and grain rotation during sintering and solid state grain alignment (SSGA) respectively. This study offers a careful evaluation of the processing of alnico PMs and methods to improve processing. These methods will be discussed along with their impacts on sintering, SSGA, and magnetic properties. Work supported by USDOE-OTT-TCF program with funds from EERE-VTO through Ames Lab contract no. DE-AC02-07CH11358.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced Skutterudite-based Thermoelectric Unicouples by Near Net Shape Powder-based Fabrication for Future Space Power Applications
Bulk Supercrystalline Nanocomposites with Enhanced Mechanical Properties for Multifunctional Applications
Cold Spray Deposition of 304L Stainless-steel Powder on Used Fuel Dry Cask Storage Systems to Control Potential Stress Corrosion Cracking
Cubic Sub-micron BiFeO3 Powders for Improved Electrical Properties
Effect of Particle Spreading Dynamics on Powder Bed Quality
Fabrication of Complex Shape Components by Spark-plasma Sintering Utilizing 3D-printed Controllable Interface
Fabrication of Uniform-sized Hemispherical Mesopores on Gold-coated Silver Nanocubes for Enzyme Immobilization
Flash Sintering: From Fundamental Science to Energy-saving Materials Processing
Influence of Powder Microstructure on Cold Spray Deposited Cr Coatings for High Temperature Oxidation Resistance
Investigation of the Powder Processing of Near-final Shape AlNiCo Magnets for Eventual Use in Electric Drive Motors
Is Additive Manufacturing a Competition or Complimentary Technology to Current Processing of Metals?
Materials for Nuclear Applications Produced by Powder-based Techniques
Microstructural Evolution of a Nanostructured Ferritic Alloy Composite during In-situ Ion Irradiation
Microstructural Evolution of NFA and Cr3C2@SiC-NFA Composite during Ion Irradiation
Miscibility Gap Alloy Thermal Storage Materials
Next Stage Development of Iron-based GARS Alloy Powders for Cold Spray Deposition of ODS Structural Materials for Extreme Environments
Novel Additive Manufacturing Process Design for U3Si2 Fuel
Peltier Effect during Spark Plasma Sintering of Boron Carbide
Powder Metal Technology for High-performance Materials with Harmonic-structure
Processing and Characteristics of Nanostructured Ferritic Alloys for Nuclear Reactor Applications
Superelastic Zirconia Powder for Shockwave Dissipation in Energy Infrastructure
Synthesis, Sintering, and Electrochemical Properties of Lithium Conducting Garnets from Molten Salt Fluxes for All-Solid-State Lithium Batteries
Toward New Flash and Energy Efficient Fabrication Processes based on Sintering

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