Powder Materials Committee

Technical Programming

2021 TMS Annual Meeting & Exhibition: Additive Manufacturing: Beyond the Beam II: Organized by Paul Prichard; James Paramore; Peeyush Nandwana; Nihan Tuncer

Additive manufacturing comprises a breadth of processes, which have significant commercial potential, design flexibility and technical challenges. Significant corporate and government resources have been committed to energy beam powder bed fusion processes, while solid state AM technologies have relied on commercial enterprises for development. Furthermore, the green part additive technologies build on existing process technology from the powder materials and ceramics, which enable the additive processing of non-weldable materials. These processes include but are not limited to: binder jetting, material extrusion, material jetting, bound filament process, nano-Inkjet printing. However, these processes introduce other challenges such as: feedstock development, alloy design, depowdering, powder recycling, binder design, debinding, process modeling, microstructural development, sintering distortion, sintering support structure design. This symposium will explore the interrelationships between the various aspects on the process variables, properties, application performance, economics and functionality of these non-beam additive processes.

2021 TMS Annual Meeting & Exhibition: Advances in Powder and Ceramic Materials Science: Organized by Bowen Li; Shefford Baker; Huazhang Zhai; Kathy Lu; Rajiv Soman; Faqin Dong; Jinhong Li; Ruigang Wang; Eugene Olevsky

This symposium emphasizes the advances of powder and ceramic materials in the fundamental research, technology development, and industrial applications. Ceramic materials science covers the science and technology of creating objects from inorganic, non-metallic materials, and includes design, synthesis, and fabrication of ceramics, glasses, advanced concretes, and ceramic-metal composites. Recent years, the hybrids of ceramic and metallic materials have received plenty of interdisciplinary inspirations and achievements in material processes and functional applications including ionic conductors, catalysis, energy conversion and storage, superconductors, semiconductor, filtrations, etc. Topics of this symposium will cover, but not limited to: • Silicates, oxides, and non-oxide ceramics and glasses • Synthesis, characterization, modeling, and simulation of ceramic materials • Design and control of ceramic microstructure and properties • Ceramic powders and processing • Catalyst and catalyst support materials • Fundamental understanding of ceramic materials and processes. • Novel methods, techniques, and instruments used to characterize ceramics and glasses. • Bioceramics, electronic, magnetic ceramics, and applications • Surface treatment and ceramic thin films, membranes, and coatings • Porous ceramic materials • Hybrid systems of ceramic, metal, and/or polymer composites • Ceramics used for extreme environments • Metallurgical byproducts for ceramic manufacturing

2021 TMS Annual Meeting & Exhibition: Powder Materials for Energy Applications: Organized by Kathy Lu; Eugene Olevsky; Hang Yu; Ruigang Wang; Isabella Van Rooyen

In the complex web of energy resource, production, storage, use, and efficiency, materials play a critical role as diverse and far-reaching as energy itself. Powder materials are part of the fundamental science and technology underlying the production of energy, including both conventional and renewable energy sources. Increasing demand for energy and the public’s desire to enhance environmental quality all point to the need for better and newer powder materials. This symposium will cover powder material issues related to energy. It will consider all aspects of powder material processing and property studies with energy applications as the main objective. It includes powder synthesis, forming (including additive manufacturing), sintering, and property evaluation. Powder materials that can deliver outstanding harsh environment properties are especially of high interest. The symposium covers advances in theory, modeling, and computation while in parallel developing cutting-edge experimental techniques and approaches to understand and characterize powder materials in demanding conditions. Both theory and modeling and experimental efforts in powder materials synthesis, processing, characterization, and performance evaluation will be covered.

2020 TMS Annual Meeting & Exhibition: Additive Manufacturing: Alternative Processes (Beyond the Beam): Organized by Paul Prichard; Matthew Dunstan; Peeyush Nandwana; Nihan Tuncer; James Paramore

Additive manufacturing comprises a breadth of processes, which have significant economic potential and technical challenges. Significant resources have been committed to laser powder bed fusion and electron beam powder bed fusion processes. However, additive processes which produce green components and require consolidation processes such as sintering and HIP eliminate many short comings such as slow build rates, residual stress and print support structures. In addition, the green part additive technologies build on existing process technology from the powder materials and ceramics, which enable the additive processing of non-weldable materials. These processes include but are not limited to: binder jetting, material extrusion, filament process, nano-Inkjet printing and selective laser sintering. However, these processes introduce other challenges such as: feedstock development, alloy design, depowdering, powder recycling, binder design, debinding, full consolidation, microstructural development, sintering distortion, sintering support structure design. This symposium will explore the interrelationships between the various aspects on the process variables, properties, application performance, economics and functionality of these non-beam additive processes.

2020 TMS Annual Meeting & Exhibition: Low-cost Titanium: 'Affordable Ti': Organized by Ramana Reddy; M. Ashraf Imam

Titanium and titanium alloys are used in many demanding applications in aerospace, automotive, biomedical and terrestrial systems because of their excellent combination of mechanical properties and corrosion resistance. However, titanium alloys are excluded from many applications because of their high cost- a result of an energy intensive extraction process and complex fabrication sequence to mill products. This is particularly true in the cost obsessed automobile industry; albeit some in-roads are now being made even into the family car. In the proposed six-session symposium, papers addressing all aspects of cost reduction in titanium and its alloys will be presented, and proceedings will be published. The various segments of titanium technology to be covered will include, but not be limited to: extraction (with emphasis on innovative and low cost Kroll approaches) new lower cost alloys, creative melting including cold hearth approaches, near net shape techniques (including powder metallurgy variants such as near net shapes, spraying, laser forming, and casting approaches), additive manufacturing, biomedical applications, processing/fabrication advances such as warm drawing, extrusion, superplastic forming (also in combination with diffusion bonding), high speed machining and knowledge based processing with emphasis on computer aided approaches, better process control including enhanced inspection methods, and creative designs such as functionally graded materials, porous alloys and infiltrated concepts.

2020 TMS Annual Meeting & Exhibition: Powder Materials for Energy Applications: Organized by Kathy Lu; Eugene Olevsky; Somayeh Pasebani; Hang Yu

In the complex web of energy resource, production, storage, use, and efficiency, materials play a critical role as diverse and far-reaching as energy itself. Powder materials are part of the fundamental science and technology underlying the production of energy, including both conventional and renewable energy sources. Increasing demand for energy and the public’s desire to enhance environmental quality all point to the need for better and newer powder materials. This symposium will cover powder material issues related to energy. It will consider all aspects of powder material processing and property studies with energy applications as the main objective. It includes powder synthesis, forming (including additive manufacturing), sintering, and property evaluation. Powder materials that can deliver outstanding harsh environment properties are especially of high interest. The symposium covers advances in theory, modeling, and computation while in parallel developing cutting-edge experimental techniques and approaches to understand and characterize powder materials in demanding conditions. Both theory and modeling and experimental efforts in powder materials synthesis, processing, characterization, and performance evaluation will be covered. Topics include: Powder material processing-structure-properties-performance relations for energy uses Additive powder material manufacturing related to energy Advanced powder material analysis and in-situ characterization Powder materials under thermal extremes at high temperatures and during thermal cycling Powder materials in chemical-reactive extremes related to energy Powder materials under irradiation extremes in high-energy flux conditions

2019 TMS Annual Meeting & Exhibition: Additive Manufacturing: Solid State Processing of Metals and Ceramics: Organized by James Paramore; Amy Elliott; Matthew Dunstan; Markus Chmielus; Nihan Tuncer

The most popular techniques for additive manufacturing (AM) of metals (e.g. powder bed fusion or directed energy deposition) utilize high-energy beams (e.g. lasers or electron beams) to directly fuse metal powders into bulk components. However, while these processes are promising for specific forms of production, they can be relatively expensive and energy-intensive. Furthermore, these processes result in complex thermal histories, which can produce large residual stresses along with difficult to predict and anisotropic microstructures and mechanical properties. As an alternative, a suite of non-fusion AM processes have been developed or are under development for the production of metal and ceramic components. In general, these processes use AM to produce “green” parts that are subsequently consolidated into bulk components using powder consolidation techniques, such as debinding and sintering. The most popular technique is binder jetting, during which a liquid binder is selectively deposited on a powder bed via inkjet printheads. Similar to powder injection molding, metal or ceramic powder can also be mixed with a polymer blend to produce pellets or filament that are formed into green parts via extrusion AM (e.g. fused filament fabrication). Additionally, powder can be mixed with a photopolymer resin to produce green parts via AM photopolymerization processes (e.g. stereolithography). Other techniques for producing green parts via AM exist. Such processes address the high capital and operating costs along with the residual stresses and microstructural concerns of fusion-based AM. Additionally, these processes could enable the development of mobile machines for in-field production of metal and ceramic components. Example topics for this symposium include, but are not limited to, binder/polymer/resin development, AM process design/modification/optimization, debinding, sintering, and characterization of both green parts and bulk components. Furthermore, presentations on both modeling and experimental efforts are encouraged.

2019 TMS Annual Meeting & Exhibition: Powder Processing of Bulk Nanostructured Materials: Organized by Zachary Cordero; Deliang Zhang; Brady Butler; Ma Qian

This symposium will cover recent advances in the powder-route synthesis of bulk nanostructured materials and nanocomposites. Talks are welcome on all aspects of the powder processing of nanostructured materials. Topics of special interest include the following: (1) powder synthesis methods: mechanical alloying and milling, rapid solidification, chemistry-based techniques, emerging powder synthesis methods (2) advanced powder forming methods: novel pressing techniques, binder jet 3Dprinting, laser/electron beam/plasma powder deposition processes, injection molding; (3) pressure-assisted consolidation techniques: spark plasma sintering, cold spray deposition, hot pressing, shock-wave consolidation; (4) pressureless densification techniques: liquid phase sintering, liquid metal infiltration, nanophase separation sintering, microwave sintering; (5) new and emerging powder metallurgy-based consolidation processes. We strongly encourage talks on structural evolution during these synthesis, forming, and densification operations.

2018 TMS Annual Meeting & Exhibition: Powder Metallurgy of Light, Reactive and Other Non-ferrous Metals: Organized by Ma Qian; Zak Fang ; Bowen Li

In this proposed six-session symposium, papers addressing all aspects of powder metallurgy of light, reactive and other non-ferrous metals and their applications will be welcome. The following topics of the powder metallurgy of light, reactive and other non-ferrous metals are particularly welcome: (i) novel synthesis of powder materials; (ii) production and characterisation of spherical powders for additive manufacturing (AM) or 3D printing, (iii) new developments and understanding of powder consolidation (e.g. spark plasma sintering; microwave sintering; forging, extrusion, powder injection moulding, cold spray forming); (iv) additive manufacturing or 3D printing; (v) functionally graded materials and novel metal-ceramic or metal-polymer composites; (vi) novel applications of powder materials including loose powders, porous structures and fully consolidated products; (vii) advances in characterization of powder materials; and (viii) modelling and simulation of all aspects of the powder metallurgy of light, reactive and other non-ferrous metals.