Magnetic Materials Committee

Technical Programming

2022 TMS Annual Meeting & Exhibition: Additive Manufacturing and Innovative Powder Processing of Functional and Magnetic Materials: Organized by Emily Rinko; Iver Anderson; Markus Chmielus; Emma White; Deliang Zhang; Andrew Kustas; Kyle Johnson

Powder Metallurgy (P/M) is a commonplace fabrication and processing method for high throughput part production in industrial settings. Additionally, P/M fabrication and processing advancement also is an essential counterpart to the advancement of additive manufacturing (AM) with powder-based AM methods. Novel and intensive research is ongoing in innovative, traditional, and emerging magnetic materials and functional materials, however, the practical application is limited by the ability to form these typically brittle materials into the shapes that are designed for the applications. At this time, advanced powder synthesis and processing, including additive manufacturing, can provide a way to form these materials into final shapes for applications. The purpose of this symposium is to tie both magnetic and functional materials to the advanced powder synthesis and additive manufacturing, as well as other advanced processing approaches and discuss aspects such as process-property relationships, functionality, and/or application performance. Magnetic and functional material systems of interest include, but are not limited to: • Soft magnets (nano-crystalline alloys, high Si-steel) • Hard magnets (Nd-Fe-B, Sm-Co, MnAlC, MnBi, alnico, ferrite, exchange-coupled) • Magnetocaloric materials (Gd-Si-Ge, Gd-Ni-X, RE-RE, RE-Al) • Magnetic Shape Memory Alloys (Ni-Mn-Ga(-X)) • Magnetostrictive materials (Terfenol-D, Ga-Fe, Gd-Co) • Thermoelastic (shape memory) Materials (TiNi) • Thermoelectric Materials (Si-Ge, Bi-Te) • Piezoelectric Materials (lead zirconate titanate (PZT), barium titanate and lead titanate) • And other materials Topics of interest for clean powder synthesis include, but are not limited to: • atomization (water, gas, rotational, ultrasonic, plasma) • mechanical comminution (multi-jet or single jet milling, high energy ball milling) • And other powder synthesis approaches Topics of interest for advanced powder processing of magnetic/functional materials include, but are not limited to: • additive manufacturing (binder jet, directed energy deposition (DED), colloidal deposition, electron beam melting powder bed fusion (EBM/PBF), laser/powder bed fusion (L-PBF), fused filament fabrication (FFF), and stereolithography) • metal injection molding • spark plasma sintering • compression molding and sinter • vacuum hot pressing • hot isostatic pressing • Functional post processing (directional recrystallization, magnetic annealing (large or moderate magnetic fields)) • And other methods

2022 TMS Annual Meeting & Exhibition: Advanced Magnetic Materials for Sensors, Power, and Multifunctional Applications: Organized by Daniel Salazar; Alex Leary; Eric Theisen; Huseyin Ucar; Yongmei Jin

This symposium focuses on structure, properties, processing, and performance interrelationships for traditional and emerging magnetic materials. The symposium will cover soft and hard magnetic materials, magnetocaloric materials, magnetoelastic, magnetoelectric, magnetostrictive, and thermoelectric materials. The scope includes new material compositions, novel characterization approaches, and application driven magnetic component design for energy conversion, sensors, and actuators. We also encourage topics that focus on the economic and supply chain impacts that magnetic materials have on manufacturing and adaptation of technologies and applications as well as novel computational approaches used for the discovery and development of advanced magnetic material. The symposium will place particular interest on the following topics: 1. Emerging and established advanced manufacturing methods a) bulk manufacturing of advanced magnetic materials, b) thermal-mechanical / thermal-magnetic processing, c) energy dense processing using RF, microwave, high pressure or high magnetic fields 2. Novel magnetic materials and processing techniques for sensor and actuator applications 3. System level implications and interactions of magnetic components and magnetic design 4. Functionalized magnetic materials for biomedical applications: hyperthermia, magnetomechanical actuation, drug delivery, imaging

2022 TMS Annual Meeting & Exhibition: Magnetics and the Critical Materials Challenge: An FMD Symposium Honoring Matthew J. Kramer: Organized by Scott McCall; Ryan Ott

The increasing need for improved energy efficiency in numerous technologies drives the need for the development of advanced magnetic metals. For example, improvements in hard and soft magnetic materials are essential to enabling high-efficiency energy conversion technologies such as compact motor-generators. Similarly, caloric materials show great promise for increased cooling efficiency and longer operational lifespans, while eliminating greenhouse gases (many refrigerant gases have 1500-4000X the atmospheric warming potential of CO2). Beyond improved performance, these materials must also address critical materials challenges—where supply chain uncertainty can hamper widespread commercialization. For example, high-performance magnetic and magneto-responsive materials typically rely on rare earth elements, which are subject to supply/demand instability leading to dramatic changes in price. Disruption of the Nd supply in 2011 led to an increase in price by a factor of ten! Other technologies are enabled by minor metals such as gallium which is a co-product from aluminum mining. Demand for Ga is rapidly growing within the semiconductor industry (GaN), limiting its availability and increasing the cost for applications such as Galfenol—a magnetostrictive material. Therefore, there is a clear need to develop classes of advanced magnetic materials with decreased reliance on critical elements. Addressing this challenge requires developing new synthesis approaches for structures difficult to realize and advanced characterization to identify and optimize material performance. Synthesis techniques include pathways to: 1) Obtain and retain metastable phases and/or nanostructures in complex systems; 2) Scale-up synthesis to bulk geometries while maintaining non-equilibrium phases/structures; and 3) Precise control over chemistry, texture, and defects during synthesis. Equally important is advanced characterization of functional materials including: 1) Advanced electron microscopy characterization of atomic- and nano-scale structures; 2) In situ characterization (X-ray, neutron, etc.) of phase stability in complex systems; and 3) Physical property measurements. This symposium will cover all aspects of advanced synthesis and characterization of high-performance functional materials. Specific topics of interest will include permanent magnet materials (rare earth and rare earth free), soft magnetic materials, calorics (magneto and elasto), and magnetostrictive materials.

2021 TMS Annual Meeting & Exhibition: Additive Manufacturing of Functional, Energy, and Magnetic Materials: Organized by Markus Chmielus; Sneha Prabha Narra; Mohammad Elahinia; Reginald Hamilton; Iver Anderson

Additive manufacturing (AM) is a popular choice to fabricate complex designs such as porous structures and also for reducing the material waste during the fabrication step. AM also offers the unique capability to control the nano, micro, and macrostructure of a material, thus enabling the user to control the material properties. All these attributes make AM a potential candidate for functional, energy, and magnetic materials. Functional and magnetic materials such as shape memory alloys, magnetic shape memory alloys, soft/hard magnetic materials, and piezoelectric materials are sensitive to the macro and microstructure of the material. Recent work in the area of shape memory alloys has demonstrated improved superelasticity in additively manufactured Nitinol without the need for postprocess heat treatment. Similarly, novel architectures for Lithium batteries fabricated using AM showed an improved performance compared to traditional batteries owing to the inherent porosity in the AM structures. Based on these prior studies, it is reasonable to conclude that a detailed understanding of the process-structure-property relationships in functional, energy, and magnetic materials can open up tremendous opportunities to fabricate materials using AM with applications ranging from medical to defense to energy industries. These developments unique to AM requires a detailed understanding of (i) identifying the optimized architecture/microstructure and (ii) achieving optimized structures via AM. The goal of this symposium is to provide a platform to discuss ongoing efforts in using AM for functional, energy, and magnetic materials. Topics of interest include (i) use of Nano-micro-macro scale metal AM processes for functional, energy, and magnetic materials; (ii) process-structure-property relationships; (iii) strategies for design and microstructure optimization using AM; (iv) modeling of process, microstructure and properties of AM of functional, energy, and magnetic materials.

2021 TMS Annual Meeting & Exhibition: Advanced Magnetic Materials for Energy and Power Conversion Applications: Organized by Richard Beddingfield; Daniel Salazar; Alex Leary; Huseyin Ucar; Yongmei Jin; Arcady Zhukov

This symposium focuses on structure, properties, processing, and performance interrelationships for traditional and emerging magnetic materials. The symposium will cover soft and hard magnetic materials, magnetocaloric materials, magnetoelastic, magnetoelectric, magnetostrictive, and thermoelectric materials. The scope includes new material compositions, novel characterization approaches, and application driven magnetic component design for energy conversion, sensors, and actuators. We also encourage topics that focus on the economic and supply chain impacts that magnetic materials have on manufacturing and adaptation of technologies and applications as well as novel computational approaches used for the discovery and development of advanced magnetic material. The symposium will place particular interest on the following topics: 1. Emerging and established advanced manufacturing methods a. bulk manufacturing of advanced magnetic materials e.g. nanostructured, amorphous, b. thermal-mechanical / thermal-magnetic processing, c. energy dense processing using RF, microwave, high pressure or high magnetic fields 2. Novel magnetic materials and processing techniques for sensor and actuator applications 3. System level implications and interactions of magnetic components and magnetic design

2020 TMS Annual Meeting & Exhibition: Advanced Magnetic Materials for Energy and Power Conversion Applications: Organized by Daniel Salazar; Alex Leary; Markus Chmielus; Ryan Ott; Arcady Zhukov

This symposium focuses on structure, property, processing, and performance interrelationships for emerging soft magnetic materials, permanent magnets, and magnetocaloric materials; hybrid materials, such as materials that display both a magnetocaloric and elastocaloric effect; and magnetic materials for sensors and actuators. The scope includes new material compositions, advanced manufacturing methods, novel characterization approaches, and applications. We also encourage topics that focus on the economic impacts that magnetic materials have on manufacturing and adaptation of technologies and applications. The symposium will place particular interest on emerging and established advanced manufacturing methods such as 1. additive manufacturing, 2. top-down and bottom-up bulk nano-manufacturing, 3. thermal-mechanical and thermal magnetic processing, 4. energy dense processing such as RF, microwave, high pressure, and high magnetic field processing and 5. Novel magnetic materials for sensor and actuator applications and their advanced processing.

2019 TMS Annual Meeting & Exhibition: Advanced Magnetic Materials for Energy and Power Conversion Applications: Organized by Frank Johnson; Paul Ohodnicki; Alex Leary; Orlando Rios; Alessandra Hool

This symposium focuses on structure, property, processing, and performance interrelationships for emerging soft magnetic materials, permanent magnets, and magnetocaloric materials. Hybrid materials, such as materials that display both a magnetocaloric and elastocaloric effect. The scope includes manufacturing methods, characterization, and applications. We encourage topics that focus on the economic effects that magnetic materials have on manufacturing and adaptation of technologies and applications. The symposium will place a particular interest on emerging and established advanced manufacturing methods such as: 1. additive manufacturing, 2. top-down and bottom up bulk nano-manufacturing, 3. thermal-mechanical and thermal magnetic processing, and 4. energy dense processing such as RF, microwave, high pressure and high magnetic field processing. In a session on critical raw materials, we welcome contributions on issues surrounding critical raw materials use, optimization and/or substitution in energy applications.

2018 TMS Annual Meeting & Exhibition: Advanced Magnetic Materials for Energy and Power Conversion Applications: Organized by Orlando Rios; Frank Johnson; Paul Ohodnicki; Alex Leary; Ian Ashcroft; Tanjore Jayaraman

The accelerated expansion of global energy demands within the recent decade may be interpreted as an indicator of quality of life and the environment. Energy technologies hinge on efficient conversion and power densification. Engineering materials, some of which are subject to supply risks, price volatility, or concerns about long-term availability has been shown to have significant impacts on viability, reliability, and efficiency of power conversion. This symposium focuses on structure, property, processing, and performance interrelationships for emerging soft and hard magnetic materials systems as well as hybrid systems such as combined magnetocaloric and elastocaloric materials which are relevant for energy and power conversion applications. A special focus of this symposium will be targeted at advanced manufacturing approaches and the interface of engineered materials with device level performance and applications which rely on the fundamental magnetic interactions between structure and electromagnetic energy. We encourage topics that focus on the economically effects that critical materials have on manufacturing and adaptation of technologies and applications. The symposium will place a particular interest on emerging and established advanced manufacturing methods such as: 1. additive manufacturing, 2. top-down and bottom up bulk nano-manufacturing, 3. thermal-mechanical and thermal magnetic processing, and 4. energy dense processing such as RF, microwave, high pressure and high magnetic field processing.