Division Lectures
Structural Materials Division/Functional Materials Division Luncheon
Speaker: Roger Narayan, University of North Carolina and North Carolina State University
Lecture Title: "Additive Manufacturing of Medical Devices: Past, Present, and Future"
Date: Monday, March 20, 2023
Time: Noon to 2:00 p.m.
Location: San Diego Convention Center, Room 20D
Cost: $65 to receive lunch; purchase your ticket through the
TMS2023 registration form. (You may attend the lecture—without lunch—at no cost.)
About the Presentation
This presentation will consider the use of several types of additive manufacturing technologies to create advanced medical devices, including devices for transdermal drug delivery and transdermal sensing. We have used additive manufacturing techniques, including digital micromirror device-based stereolithography and two photon polymerization, to prepare hollow microneedles that may be used for direct interaction between a sensor and subsurface tissues. Several types of electrochemical and optical sensors have been integrated with arrays of hollow microneedles. In addition, multiplexed microneedle sensors have been used for the detection of several physiologically-relevant molecules. Microneedles for transdermal delivery have also been demonstrated via preclinical studies. In this talk, efforts to facilitate the clinical translation of medical devices made by additive manufacturing will be considered.
About the Speaker
Roger Narayan is a distinguished professor in the joint Department of Biomedical Engineering at the University of North Carolina and North Carolina State University. He is an author of over two hundred publications as well as several book chapters on the processing, characterization, and modeling of biomedical materials. He currently serves as an editorial board member for several academic journals, including as associate editor of Applied Physics Reviews (AIP Publishing). Narayan has received several honors for his research activities, including the University of North Carolina Jefferson-Pilot Fellowship in Academic Medicine and the American Ceramic Society Richard M. Fulrath Award. He has been elected as a fellow of the American Ceramic Society, ASM International, the American Association for the Advancement of Science, the American Society of Mechanical Engineers, the American Institute for Medical and Biological Engineering, and the Materials Research Society.
Extraction & Processing Division/Materials Processing & Manufacturing Division Luncheon
Speaker: Paramita Das, Rio Tinto
Lecture Title: "Innovative Solutions to Accelerate Sustainability in Mining, Metals and Minerals"
Date: Tuesday, March 21, 2023
Time: 1:00 p.m. to 3:00 p.m.
Location: San Diego Convention Center, Room 20D
Cost: $65 to receive lunch; purchase your ticket through the TMS2023 registration form. (You may attend the lecture—without lunch—at no cost.)
About the Presentation
Climate change represents an unprecedented challenge and is a key topic for the mining, metals, and minerals sectors. We believe sustainability and environmental, social, and governance considerations are critical to ensure our products are fit for the future. By working closely with our value chain partners, Rio Tinto is part of the solution for a more sustainable future. We are deploying our technological expertise to develop new technologies such as zero-carbon aluminium smelting. By leveraging our pioneer spirit, we have launched START: a blockchain technology powering transparency, traceability, and provenance tool connecting the value chains from mine to market.
About the Speaker
Paramita Das is global head of marketing, development and ESG (chief marketing officer); metals and minerals, Rio Tinto. Das is a global executive with extensive experience in the commodities segment (metal and oil and gas). She leads marketing for metals and minerals globally and the establishment of a more environmental, social, and governance (ESG)-centric approach in the Atlantic region. Prior to her work in the marketing and development space, Das was the chief of staff to the chief executive officer of Rio Tinto and chief transformation officer for the Atlantic Operations for Aluminium segment with Rio Tinto. Das joined Rio Tinto in 2015, prior to which, she worked with companies including Sumitomo/UACJ/TAA and BP. She is a passionate advocate for ESG and inclusion.
Light Metals Division Luncheon
Speaker: Slade Gardner, Big Metal Additive
Lecture Title: "Rewriting Design, Cost, and Schedule Paradigms for Satellites with Aluminum Hybrid Additive Manufacturing"
Date: Wednesday, March 22, 2023
Time: Noon to 2:00 p.m.
Location: San Diego Convention Center, Room 20D
Cost: $65 to receive lunch; purchase your ticket through the TMS2023 registration form. (You may attend the lecture—without lunch—at no cost.)
About the Presentation
A commonly useful category of satellite called 'ESPA class' is a 400 kg spacecraft that is used for a wide range of Low Earth Orbit missions. These satellites are intended to provide a quick and efficient path to inserting assets on station; however, conventional designs are typically confounded resulting in laborious assembly, leaving spacecraft cost and schedule a concerning issue. Industrial scale hybrid additive manufacturing is the fastest reliable method to produce complex, dimensionally compliant aluminum structures from a computer-aided design model. A recent software innovation, Topology Optimization, can create unique, efficient designs based on geometric and load constraints. We have adapted this optimization to produce designs that accelerate satellite assembly and therefore reduce cost and schedule for spacecraft production. These optimized structures, too complex for traditional manufacturing, can be produced from aluminum using hybrid additive manufacturing. The finish machined interior and exterior surfaces create a lightweight, ready-to-assemble chassis that accelerates production schedules and reduces cost. Self-locating mounting surfaces, pressure tanks, and cooling lines can be directly integrated as structural features. The next step is leveraging these innovative capabilities with purposeful mission-specific objectives in mind, optimizing mass budget, volume budget, and satellite configuration to achieve increased performance as an added benefit.
About the Speaker
Slade Gardner is president and founder of Big Metal Additive (BMA), a company advancing large-scale metal hybrid additive manufacturing. Gardner has led BMA from startup to an internationally recognized company serving customers in the space, aeronautics, maritime, heavy equipment, automotive, and energy markets, as well as the Department of Defense. He is the 2022 SME Additive Manufacturing Industry Achievement award winner recognizing outstanding accomplishments of significant impact advancing industrial additive manufacturing. Previously, Slade was distinguished fellow at Lockheed Martin Space Systems and fellow at Lockheed Martin Aeronautics Skunk Works™. He has advised corporations and institutes for strategy and development priorities on technology gaps and needs for market adoption; and served national laboratory, U.S. government, and industry boards, notably as chair of the External Advisory Board for Sandia National Lab’s ‘Born Qualified’ program and board member of the Colorado Advanced Manufacturing Association. He mentors people new to additive manufacturing technologies, supports educational outreach curriculum from Colorado School of Mines, guest lectures for university courses, and has mentored entrepreneurs through the NSF iCorp program. His Ph.D. in Chemical Engineering was earned under fellowship of the National Science Foundation Science and Technology Center at Virginia Tech and his B.S. in Chemical Engineering is from Lafayette College. Personal interests include traveling and dining with his wife, all seasons of mountain sports, and he is an avid motorcycle enthusiast.
Award Lectures
Extraction & Processing Division Distinguished Lecturer
Speaker: Corale L. Brierley, Brierley Consultancy LLC
Lecture Title: "New Directions for Biotechnology Practices in Metals Extraction"
Date: Monday, March 20, 2023
Time: 8:45 a.m. to 9:25 a.m.
Location: San Diego Convention Center, Room 33C
About the Presentation
Heap bioleaching of base metals ores, primarily chalcocite, and continuous, stirred-tank minerals biooxidation of refractory sulfidic gold concentrates have been practiced in engineered systems for some 30 years. Certainly, bioleaching has been rudimentarily practiced for much, much longer. So, where can biotechnology practices in metals extraction go from here? Biotechnology opportunities exist for in-situ bioleaching, treatment of complex ores, waste processing, reductive bioprocessing of oxidized ores, and, with currently available methodologies to genetically modify microorganisms, enhancement of metals extraction. Several of these opportunities have achieved some measure of application. For others, additional research is needed along with engineering design to apply these opportunities effectively. Demonstrating innovative biotechnologies at sufficient scale to assess technical and economic viability is essential and often challenging to undertake. Commercializing metal extraction biotechnologies can be complicated and unfortunately too often unsuccessful, particularly by small high-tech companies. These topics will be addressed.
About the Speaker
Corale L. Brierley has a lengthy career, comprising some 30 years as a bioleach consultant; about two years with Newmont Corporation; eight years of managing Advanced Minerals Technology Inc., a metal's biotechnology company; and ten years of applied bioleaching R&D at New Mexico Institute of Mining and Technology. She has been awarded the American Institute of Mining, Metallurgical and Petroleum Engineer (AIME) James Douglas Gold Medal, the Society for Mining, Metallurgy & Exploration (SME) Milton E. Wadsworth Extractive Metallurgy Wadsworth Award, the American Mining Hall of Fame Medal of Merit (co-recipient with spouse, James Brierley), and New Mexico Tech’s President’s Medal. She was elected as a member of the U.S. National Academy of Engineering (NAE) in 1999 and has served on numerous NAE and National Academy of Sciences, Engineering, and Medicine committees, boards, and studies. Corale completed two four-year terms as the NAE Vice President. She has two degrees from New Mexico Tech and a Ph.D. from the University of Texas at Dallas.
William Hume-Rothery Award
Speaker: Gerbrand Ceder
Lecture Title: "Ab Initio Thermodynamics and Kinetics from Alloys to Complex Oxides"
Date: Monday, March 20, 2023
Time: 8:30 a.m. to 9:10 a.m.
Location: Hilton San Diego Bayfront, Cobalt 501C
About the Presentation
Any method for ab initio thermodynamics requires the combination of highly accurate energetics with the ability to integrate over the highly different timescales by which a system explores its degrees of freedom. The coarse-grained cluster expansion offers, in principle, such an approach to obtain thermodynamic information with the accuracy of ab-initio electronic structure methods. This talk will demonstrate the evolution of the cluster expansion and its current use in the design of highly complex, technologically relevant materials. With the design and property prediction of materials reaching unprecedented levels of success, Ceder will argue how our focus needs to shift to applying ab-initio methods to understand and predict the synthesis of materials.
About the Speaker
Gerbrand Ceder is the Samsung Distinguished Professor of Engineering at University of California, Berkeley. His research interests lie in computational and experimental materials design for clean energy technology, and in artificial intelligence/machine learning approaches to materials design and synthesis. He has published over 500 scientific papers with a Hirsch index of 148 and holds more than 50 U.S. and foreign patents. He is a member of the U.S. National Academy of Engineering and the Royal Flemish Academy of Belgium for Science and The Art. He has served on several U.S. Department of Energy committees and has advised the U.S. Office of Science and Technology Policy on the role of computation in materials development, leading to the Materials Genome Initiative. He is a Fellow of TMS, the Materials Research Society (MRS), and the American Physical Society and has received awards from the Electrochemical Society, MRS, TMS, and the International Battery Association.
Institute of Metals/Robert Franklin Mehl Award
Speaker: Carl Koch, Kobe Steel Distinguished Professor, North Carolina State University
Lecture Title: "Metallurgical Engineering to Materials Science and Engineering: Evolution of a Profession and TMS"
Date: Tuesday, March 21, 2023
Time: 2:30 p.m. to 3:00 p.m.
Location: Hilton San Diego Bayfront, Aqua D
About the Presentation
Carl Koch joined TMS in 1957 as an undergraduate student in Metallurgical Engineering at Case Institute of Technology. Since then, the profession and TMS have evolved. Koch will discuss his evolution through his career as an example of the changes in our profession and the need for lifelong learning. When he was an undergraduate, “steel was king.” Most of the research projects during his graduate school years were on steel. However, as the “age of silicon” started in the 1960s, this changed. Industrial laboratories such as General Electric and DuPont had a history of using multidisciplinary research to solve materials problems. The first university department of materials science and engineering began at Northwestern University in 1959. This talk will discuss the nature of a profession, the history of the metallurgical/materials professions, the associated professional societies, and the history of engineering and materials engineering education.
About the Speaker
Carl Koch received his Ph.D. in metallurgy from the Case Inst. of Technology (now Case Western Reserve University) in 1964. He was a post-doctoral NSF Fellow, Birmingham University, United Kingdom, from 1964-1965. He joined Oak Ridge National Laboratory as a staff scientist in 1965. He was the group leader of the superconducting materials and then the alloying behavior and design group before he joined North Carolina State University, Department of Materials Science and Engineering, as a professor in 1983. He is currently Kobe Steel Distinguished Professor of materials science and engineering. He has made significant contributions to understanding of mechanical alloying for preparation of amorphous and nanostructured alloys. His recent research interests include studies of high entropy alloys. He has published more than 360 papers and edited or co-edited seven books. He has achieved the rank of Fellow in five professional societies, including TMS, where the membership is limited to 100 living Fellows; the Materials Research Society; the American Physical Society; ASM International; and the American Association for the Advancement of Science. He was elected to the U.S. National Academy of Engineering in 2013.
William D. Nix Award Lecturer
Speaker: Eduard Arzt, INM – Leibniz Institute for New Materials and Saarland University
Lecture Title: "From Bioinspiration to Machine Learning—a New Concept for Object Manipulation"
Date: Wednesday, March 22, 2023
Time: 8:30 a.m. to 9:30 a.m.
Location: Hilton San Diego Bayfront, Sapphire D
About the Presentation
Evolution has evolved fascinating resource-efficient and sustainable materials architectures to ensure survival. Inspired by nature, micropatterning of polymeric surfaces has become a powerful paradigm. Celebrated examples range, e.g., from controlled wetting and anti-icing to coloration and switchable adhesion. Fundamental adhesion studies have not only demonstrated the benefit of microfibrillar architectures but have also inspired innovative pick-and-place systems or delicate adhesives for skin and body organs. But several problems remain: how do we release micro-objects with negligible mass? And how can we ensure reliability of gripping, also in demanding conditions such as in space? We have proposed a machine-learning-based optical monitoring system that images the individual fibrillar contacts in operando. Several classifiers predict successful handling with high accuracy, indicating, e.g., incomplete or off-center gripping. The improved reliability of this technology will impact everyday life as eco-friendly solutions will be increasingly essential for our own survival.
About the Speaker
Eduard Arzt is professor for new materials and scientific director of INM – Leibniz Institute for New Materials in Saarbrücken, a leading German research laboratory. Previously, he co-directed the Max Planck Institute for Metals Research in Stuttgart for almost two decades. Following a physics Ph.D. from the University of Vienna, Austria, he performed research at Cambridge University, Stanford University, MIT, and the University of California. He is the recipient, e.g., of the Leibniz Award, the TMS Fellow Award, the TMS Morris Cohen Award, and several competitive European Research Council grants. He is a member of several academies including the U.S. National Academy of Engineering. Arzt is editor-in-chief of the review journal Progress in Materials Science and co-founder of a deep tech start-up.
Emerging Professional Award Lectures
Young Innovator in the Materials Science of Additive Manufacturing Award Lecture
Date: Monday, March 20, 2023
Time: 4:20 p.m.
Location: San Diego Convention Center, Room 20A
Matteo Seita, University of Cambridge
"TMS Young Innovator in the Materials Science of Additive Manufacturing Award: Microstructure Design Freedom in Metal AM: A LEGO® Analogy"
About the Presentation
Since its inception, additive manufacturing (AM) has been synonymous with geometric design freedom. However, the disruptive potential of AM goes beyond the fabrication of parts with complex shape. By employing variable processing parameters during AM, it is possible to control the formation of dissimilar microstructures within the same build. This capability enables novel materials designs by arranging the attainable microstructures into complex architectures as if they were pieces of a LEGO® construction set. In this talk, different AM strategies will be presented that demonstrate this “microstructure design freedom.” This presentation will also describe the unique functionalities imparted by some of these microstructure architectures and discuss future opportunities to leverage the combined geometric and microstructure design freedom to produce engineering alloys with improved performance.
About the Presenter
Matteo Seita is the Granta Design Assistant Professor in the Department of Engineering at the University of Cambridge, where he leads the Additive Microstructure Engineering Laboratory (AddME Lab). The goal of the AddME Lab is to understand and control the microstructure complexity brought about by additive manufacturing processes to design metallic materials with improved performance and novel functionalities. Before joining the University of Cambridge, Seita was a Nanyang Assistant Professor at NTU Singapore. During his tenure at NTU, he was awarded the prestigious NRF Fellowship—a S$3M individual grant for early-career scientists—to develop novel additive manufacturing strategies for microstructure control of metal alloys. He earned his Ph.D. in Materials Science from ETH Zurich in 2012 and then spent three years as a postdoctoral associate in the Department of Materials Science and Engineering at the Massachusetts Institute of Technology.
Emerging Professional Tutorial Luncheon Lecture
Date: Tuesday, March 21, 2023
Time: 1:15 p.m. to 2:45 p.m.
Location: Hilton San Diego Bayfront Hotel
Cost: $65 to receive lunch; purchase your ticket through the TMS2023 registration form. (You may attend the lecture—without lunch—at no cost.)
Danielle L. Cote, Worcester Polytechnic Institute
"The Role of Early Career Professionals in Increasing Diversity in STEM Professions"
About the Presentation
There are many angles and approaches to increasing diversity in STEM professions. Leaders can create a welcoming and inclusive work environment. Hiring managers can encourage diverse hires. But as young professionals, what can we do? Turns out, even early on in our careers, small changes in our daily behavior can have a significant impact on changing culture to create a community where everyone truly feels welcome and valued. Here, we will discuss common exclusive behavior that is particularly common in STEM professions. We will learn to first recognize this behavior, then develop the skills to offset it, with the goal of having a positive impact on the overall environment. Topics discussed will include imposter syndrome, effective communication, advocation, and mentoring. Anecdotes will be coupled with tips and resources to provide actionable changes to benefit everyone.

Grace X. Gu, University of California, Berkeley
"Managing Tradeoffs in Materials and Life"
About the Presentation
As in life, so in materials, tradeoffs abound. Gu will talk about these tradeoffs and her strategies for overcoming them. The first part of the talk will focus on the tradeoffs that often exist in material properties. As an example, materials that are very strong are often not very tough, and vice versa. We see these compromises in our work with composites, bioinspiration, and artificial intelligence, where we design and build to overcome tradeoffs. Specifically, this talk will address how machine learning techniques and optimization algorithms help us tune for user-defined properties, with little to no sacrifice of ancillary properties, by properly formulating an objective function. A similar optimization procedure is undertaken in our lives. We all have priorities in life and goals we set for ourselves. At the same time, we have to fulfill different responsibilities and roles, for example, teaching, research, service, family, friends, hobbies, and more. In the second part of the talk, Gu will share her career path to academia – the joys and pains, the ups and downs, and the rewards and frustrations. She will then talk about how to prioritize the most important aspects of life and find ways to overcome the compromises. With proper planning, she says, we can build our best lives possible in the same way we design for materials with superior properties.
Yu Zou, University of Toronto
"Harnessing Defects in Materials and Manufacturing: An Analogy with Professional Development"
About the Presentation
“Crystals are like people. It is the defects in them which tend to make them interesting!” - Colin Humphreys. This talk will present two recent studies from Yu Zou’s research group. First, he will talk about governing dislocation motion by a non-mechanical field. Here, they directly observe that an external electric field drives dislocation motion in a crystalline solid. This study provides direct evidence and insight into dislocation dynamics under non-mechanical stimuli and offers opportunities for modulating dislocation-motion related properties such as strengthening and formability of crystalline solids. Second, the presentation will discuss a new strategy of tailoring grain and phase boundaries in titanium alloys and high-entropy alloys during a laser-based additive manufacturing process, for optimal mechanical properties. Beyond the technical part, Zou will share his story about his career development and how he “strengthened” his professional development through “harnessing defects”. Also, he will share his experience in building up a research group with diversity—how “high entropy” improves our academic environment. The presentation concludes with perspectives about equity, diversity, and inclusion, which are core values of our research community.
Japan Institute of Metals and Materials Young Leaders International Scholars
Date: March 21, 2023
Time: 9:20 a.m. to 9:50 a.m.
Location: Hilton Bayfront Hotel, Sapphire Level, Ballroom A
Kazuki Imasato, National Institute of Advanced Industrial Science and Technology
"Discovery of Triple Half-Heusler with Low Thermal Conductivity"
About the Presentation
Half-Heusler (HH, general formula: XYZ) materials have been extensively researched for their potential in thermoelectric materials and other applications. The concept of double half-Heusler (DHH) was recently proposed as a potential strategy to reduce lattice thermal conductivity for better thermoelectric performance. In this talk, we will expand this idea further to triple half-Heusler (THH). THH phase was successfully synthesized by following an unconventional valence balance strategy. Even though both ternary components of THH phase are unstable with the metallic transport properties, experimental results indicated a homogeneous and pure characteristic of synthesized samples with a large Seebeck coefficient. In addition, the lattice thermal conductivity is lower than half-Heusler standards around room temperature. Since a high thermal conductivity has been always a problem for HH-based thermoelectric materials, the synthesis of THH with very low lattice thermal conductivity can be a new direction for the high-performance of HH thermoelectrics.
Date: March 22, 2023
Time: 11:10 a.m. to 11:40 a.m.
Location: San Diego Convention Center, Room 25B

Takayuki Kojima, Shinshu University
"Intermetallic Compounds as Catalysts and Usefulness of Metallurgy"
About the Presentation
Novel catalytic properties are often exhibited in intermetallic compounds due to surface ordered structures and unique electronic structures. Catalysis is usually investigated using nanoparticles precipitated on oxide supports, which are prepared by liquid chemical processes. However, much effort is needed to optimize synthesis conditions for supported intermetallic nanoparticles, and of which reproducibility is not good. Thus, it is difficult to conduct a proper screening of intermetallic catalysts and a fundamental research comparing catalysis among different intermetallics. These problems can be solved by metallurgical synthesis. Many intermetallics can easily be synthesized by metallurgical methods including arc-melting with high reproducibility. Since intermetallics are usually brittle, powder catalysts can be obtained by crushing using a pestle and mortar. Such a powder is suitable for screening and fundamental research. Moreover, it is valuable if supported intermetallic nanoparticles can be synthesized by ball-milling, which must be reproducible and needs less effort to optimize synthesis conditions.
Date: March 22, 2023
Time: 11:50 a.m. to 12:20 p.m.
Location: San Diego Convention Center, Room 29C
Daixiu Wei, Tohoku University, Institute for Materials Research
"Strong and Ductile Metastable Single-phase High-entropy Alloys: Design, Processing, and Mechanical Behaviors"
About the Presentation
Metals are indispensable infrastructure materials, and metallurgists are pursuing the realization of an exceptional combination of strength and ductility. Our research revealed principles for regulating both the elastic and plastic behaviors of the emerging high entropy alloys (HEAs), through first-principle calculations and thermodynamics calculations. Based on the guidelines, we proposed a series of metastable quaternary and quinary single-phase HEAs with exceptional mechanical properties. Combinational factors enhanced the mechanical performance, including the low-stacking fault energy-induced restriction of planar slip of dislocations, mechanical twinning, and strain-induced martensitic transformations. Besides, the temperature dependent plastic deformation behaviors of those developed HEAs were investigated by in-situ and ex-situ neutron diffraction measurements. The findings shed light on the basic understandings and development of high-performance metallic materials for various applications. The details on the alloy design and their mechanical performance will be discussed.