Sunday, October 25
Rustum Roy Lecture
“Engineering Education and the Challenges of the 21st Century”
Dr. Charles M. Vest
President National Academy of Engineering
President Emeritus, Massachusetts Institute of Technology
2101 Constitution Avenue, N.W.
Washington, D. C.
Abstract: This is the most exciting time for engineering and science in human history. A new generation of engineers will be inspired by the great human challenges of this century. Globalization and the changing nature of science and technology are driving change and opportunity in higher education, R&D, and innovation. R&D spending is smeared nearly uniformly around the world, and new players are rapidly emerging. Higher Education is globalizing in both planned and unplanned ways, enabled by information technology and driven by economic and social change. Our innovation system may be due for another major transformation. Do our universities have new responsibilities? Can we pull it off?
Tuesday, October 27
Arthur L. Friedberg Memorial Lecture
“Ceramics in a 21st Century Materials World”
Gary Fischman, PhD, The National Academies
National Materials Advisory Board
Washington, DC 20001
Abstract:From the beginning the 20th century to its end, the ways in which we perceived, viewed, studied, taught and engineered materials changed enormously. Ceramics went from infancy to a science based technology alongside metallurgy. In that time we saw the emergence of other materials technologies such as engineered composites, polymers and biologics. Putting our growing understanding of ceramics, metals, polymers and composites together, we have moved to a more integrated and complex worldview that discusses materials science and engineered materials. As we move into the 21st century, many of the ways in which we analyzed, modeled and engineered ceramics is changing rapidly giving way to new and other ways of developing our materials. In this year’s Friedberg lecture, some of these changes will be reviewed as they pertain to and might affect materials science and engineering in the future.
Edward Orton Jr. Memorial Lecture
“Innovations through Ceramic Processing by Tailoring Solid-Liquid and Solid-Gas Interfaces”
Ludwig J. Gauckler, ETH Zurich
Inorganic Nonmetallic Materials
Wolfgang- Pauli Str. 10, Zurich
Abstract:Tailoring the solid-gas and solid-liquid interfaces of particles by organics offers plenty of possibilities to generate composite materials via colloid chemistry spanning with their microstructural dimensions over several orders of magnitude. New composite materials derived from foams emulsions and polymer-ceramic combinations are possible and open up new applications. Some concepts to use functionalized interfaces in colloid technology for ceramic processing will be illustrated by a few examples. Manipulating surface potential and Debye length of colloid particles using enzymatic catalyzed reactions can be used to convert a stable colloid sol to a coagulated stiff gel for the formation of complex shaped ceramic components. The resulting ceramic components show extremely good mechanical properties and unusual high reliability. Colloid chemistry combined with micro patterning enables hundreds of tiny gas sensors to be integrated in arrays for hitherto unprecedented density. Such micro-sensors on silicon and silicon nitride micro hot plates can operate as electronic noses to analyze gases.
Wednesday, October 28
Robert B. Sosman Award and Lecture
“Measuring and Interpreting the Three-Dimensional Structure of Grain Boundary Networks”
Gregory S. Rohrer, Carnegie Mellon University
Department of Materials Science and Engineering
5620 Aylesboro Ave.
Pittsburgh, PA 15213-3890 Pittsburgh, PA 15217
Abstract:Recently developed techniques to measure and simulate the structure and evolution interfacial networks in three dimensions have the potential to revolutionize our ability to predict and control the microstructures of polycrystals and interface dominated materials properties. This presentation will focus on the interpretation of recent three dimensional orientation mapping experiments carried out in a dual beam, focused ion beam SEM. The experiments confirm a strong connection between the relative energies of grain boundaries and the frequency with which they occur in microstructures. They also show that during microstructure evolution, relatively higher energy grain boundaries are more likely to be shrinking while lower energy interfaces are more likely to be growing. These processes can lead to a steady state distribution of grain boundaries that is influenced as much by the relative grain boundary energies as by the exact processing conditions. In this talk, the results of experiments and simulations are discussed in terms of a simple theory for the development of steady state, characteristic interface distributions. Possible routes to control interface distributions will be discussed and future challenges will be highlighted.