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Ion Exchange at Metal-Ceramic InterfacesPI
Frank Ernst, Case Western Reserve
UniversityCo-PI R. Raj, University of
ColoradoAward Number MET DMR-0208008
Symmetrical electrodes, e.g. Al/Sp/Al do not
create an EMF, but an asymmetrical electrode
configuration, as shown on the right, creates a
large EMF at elevated temperature, raising the
specter of a new kind of high-temperature cell.
Metal electrodes made of the cations in the
spinel lead to interdiffusion adjacent to the
interfaces, which enhances mechanical strength of
the interface.
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Ion Exchange at Metal-Ceramic InterfacesPI
Frank Ernst, Case Western Reserve
UniversityCo-PI R. Raj, University of
ColoradoAward Number DMR-0208008
Education and Outreach Yeonseop Yu, graduate
student at Case, completed his PhD thesis and
defended in 2006. Based on the skills he acquired
in this project, he was hired by Samsung RD,
Korea. Gurpreet Singh, graduate student at UCB,
completed his masters thesis. Myongjai Lee,
doctoral student at UCB, was trained in UHV
techniques, preparation of thin films, and
electrical measurements revealing the mobility of
ions in ionic crystals as a function of
temperature.
Broader Impacts Frank Ernst, PI, gave an
invited presentation on results from this
research project in the symposium in honor of
David Brandon at the TMS Annual Meeting in San
Antonio, 2006. Frank Ernst, PI, has been
invited to present results from this research
project at the Materials Science and Technology
meeting in Cincinnati, 2006. Our group has
published a paper on results from this project in
the Journal of Materials Science (Springer,
2006).