Multiphase Ceramic Composites for Energy Conversion and Storage
Location: EB1 Room 1011
Friday, September 4th 2015 - 11:00 am
The emergent properties arising from the interactions of phases including interfacial contributions and phase evolution at the mesoscale present new opportunities, as well as challenges, for materials performance and functionality. This presentation will highlight interfacial contributions to system level performance in two diverse fields: i) Mixed Ionic and Electronic Conducting (MIEC) separation membranes and ii) Ceramic waste forms for nuclear waste storage. MIECs are widely used in semiconductors, electrochemical storage materials, electrodes of fuel cells and batteries, separation membranes, and catalysts with various requirements for chemical, electrical, thermal, and mechanical properties. The microstructure and connectivity of the ionic and electronic conductive phases in composite ceramic membranes are directly related to device performance. Durable ceramic waste forms that incorporate a wide range of radionuclides have the potential to broaden the available disposal options and to lower the storage and disposal costs associated with advanced nuclear fuel cycles. Recent work has shown that they can be produced from a melting and crystallization process similar to melter technology currently in use for High Level Waste (HLW) vitrification in several countries around the world. However, differences in microstructure and elemental partitioning were observed compared with traditional processing methods, which may impact the long-term stability and propensity for elemental release. Performance implications will be discussed with regards to the design of new material systems, which evolve under non-equilibrium conditions.
Prof. Kyle Brinkman's research has been in the areas energy materials including electronic ceramic materials for gas separation and processing in commercial (H2, O2, CH4 and CO2) and nuclear domains (hydrogen isotopes), structure/property relations in solid oxide fuel cell systems, radiation tolerant crystalline ceramics for applications in nuclear energy, and multifunctional ceramic thin film coatings. Kyle recently joined Clemson from the DOE's Savannah River National Laboratory (SRNL) where he was a Principal Engineer in the Science and Technology Directorate and Program Manager for the lab's Energy Efficiency and Renewable Energy (EERE) research portfolio. Prior to working at SRNL, he was a fellow of the Japanese Society for the Promotion of Science working in a Japanese "National Laboratory" the National Advanced Institute of Science and Technology in Tokyo, Japan. He was the recipient of TMS Young Leaders International Scholar Award in 2015, the American Ceramic Society and National Institute of Ceramic Engineer's ACerS/NICE Karl Schwartzwalder-Professional Achievement in Ceramic Engineering (PACE) Award 2015, and the DOE-NE Fuel Cycle Research and Development Early Career Researcher Award in 2013. Prof. Brinkman serves as the Materials Advantage (MA) and Keramos faculty advisor for Clemson's undergraduate students in Materials Science and Engineering.