Date: Tuesday, October 19, 2021
Time: 8:00 a.m. to 10:40 a.m.
Three prestigious, invited presenters will deliver lectures during the all-conference plenary session on Tuesday morning. Come to learn more from these influential leaders in their fields.
AIST Adolf Martens Memorial Steel Lecture
Anil K. Sachdev, General Motors Global Research & Development, USA
Presentation Title: "Iron – The Ubiquitous Element"
About the Presentation
This talk will reflect briefly upon the discovery of iron and advancements over the centuries that led to its pervasive use in automotive and other demanding structural applications. The martensitic transformation, which became the turning point in steel metallurgy, and its endless ability to create a variety of microstructures with their unique properties, will be described. Finally, the potential for continued development in the iron-based system that exploits the combination of intrinsic unique material attributes with process and product design will be highlighted.
TMS Plenary Speaker
Tresa Pollock, Alcoa Professor of Materials at the University of California, Santa Barbara
Presentation Title: "New Superalloys in the Co-Ni Design Space for 3D Printing"
About the Presentation
Additive manufacturing promises a major transformation of the production of high economic value metallic materials, enabling innovative, geometrically complex designs with minimal material waste. The overarching challenge is to design alloys that are compatible with the unique additive processing conditions while maintaining material properties sufficient for the challenging environments encountered in energy, space, and nuclear applications. Superalloys with approximately equal parts of Ni and Co offer new design pathways, enabling improved control of solidification and phase transformations that are critical to 3D printing. The role of new experimental, computational, and data-centric design tools in discovering new alloys in this domain will be discussed. The unique properties of Co-Ni alloys will be discussed, along with future challenges for the exploration of the Co-Ni design space.
About the Presenter
Tresa Pollock is the Alcoa Professor of Materials at the University of California, Santa Barbara. Her research focuses on the mechanical and environmental performance of materials in extreme environments, unique high temperature materials processing paths, ultrafast laser-material interactions, alloy design, and 3-D materials characterization. More specifically, Pollock’s recent projects include the development of new femtosecond laser-aided 3-D tomography techniques and damage detection and modeling by resonant ultrasound spectroscopy. Prior to this work, she was employed at General Electric Aircraft Engines, where she conducted research and development on high temperature alloys for aircraft turbine engines and co-developed the single crystal alloy René N6 (now in service). Pollock also served as a professor in the Departments of Materials Science and Engineering at Carnegie Mellon University and the University of Michigan. She has been elected to the U.S. National Academy of Engineering and is a Vennevar Bush Fellow and Fellow of TMS and ASM International. Pollock is currently the editor-in-chief of the Metallurgical and Materials Transactions family of journals and was the 2005 TMS President. She earned her B.S. in metallurgical engineering from Purdue University in West Lafayette, Indiana, and her Ph.D. in materials science and engineering from the Massachusetts Institute of Technology in Cambridge, Massachusetts.
ACerS Edward Orton Jr. Memorial Lecture
Clive Randall, Director of Materials Research Institute, The Pennsylvania State University
Presentation Title: "Turning Down the Heat in Sintering to Enable the Unification of all Materials"
About the Presentation
Typical ceramic sintering temperatures occur at 0.5 to 0.95 of the melting temperatures (Tm), in oxides; we conventionally sinter around 800 to 1800°C. This lecture reviews various chemical pathways, and variables such as pressure, temperature, and time, that enable the cold sintering processes to occur at low temperatures. Using model systems, it is possible to contrast the energetics and mechanisms with conventional sintering processes regarding densification and grain growth kinetics. With the introduction of a cold sintering strategy, a common processing platform ~ 200°C enables the integration of multiple materials that permits new types of composites and devices to be designed. The power of such design versatility will be demonstrated with number of functional ceramics and multilayer devices impacting a broad number of applications. Beyond the successful examples, the many challenges and opportunities of cold sintering will also be discussed, including the vision of a sustainable cyclic economy.
About the Presenter
Clive A. Randall is a Distinguished Professor of Materials Science and Engineering and has served as Director of Materials Research Institute at The Pennsylvania State University from 2015. Randall received a B.Sc. in Physics in 1983 from the University of East Anglia and a Ph.D. in Experimental Physics from the University of Essex in 1987, both in his native United Kingdom. He came to Penn State in 1987 as a research associate to work with the Ferroelectrics group, becoming senior research associate in 1992, an associate professor in 1994, and a full professor in 1999. He became director for the National Science Foundation Center for Dielectric Studies (1997-2013) and grew the center to international recognition with a team of excellent colleagues, staff, and students. In 2013, the center was restructured, and he formed the Center for Dielectrics and Piezoelectrics as a co-director until 2016; he still serves as technical advisor. He has authored/co-authored over 500 technical papers and 14 patents, with over 26,000 citations, all in various aspects across the field of electroceramics.
Randall has been awarded several honors, including election to World Academy of Ceramics (2006); he received the IEEE UFFC-S Ferroelectrics Recognition Award (2014). He was made honorary Fellow of the European Ceramic Society and the IEEE Distinguished Lecturer (2019). As an active member of the American Ceramic Society (ACerS), he was honored with the ACerS Fulrath Award (2002) and elected Fellow of ACerS (2005). He and his coauthors received the Spriggs Phase Equilibria Award (2008), and he gave the Friedberg Lecture at ACerS (2011). He received, along with his students, the Edward C. Henry Best Paper of the Year twice from the ACerS Electronics Division (2012 and 2016). His research ranges from material processing, defect and crystal chemistry, and electromechanical properties of electroceramics, with a particular focus on dielectrics and piezoelectrics and their behavior under extreme conditions.