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MSE Seminar - Ichiro Takeuchi
Friday, September 5, 2008
1:00 p.m.
Rm. 2108, Chemical and Nuclear Engineering Bldg.
For More Information:
Annette Mateus
301 405 5207
amateus@umd.edu

"Combinatorial Approach to Multiferroic Materials"

Ichiro Takeuchi
Department of Materials Science and Engineering
University of Maryland

Throughout the history of mankind, scientists and engineers have relied on the slow and serendipitous trial-and-error approach for materials discovery. In the 1990s, the combinatorial approach was pioneered in the pharmaceutical industry in order to dramatically increase the rate at which new chemicals are identified. The high-throughout concept is now widely being applied to a variety of fields. We have developed combinatorial thin film synthesis and characterization techniques in order to perform rapid survey of previously unexplored compositional phase space in search of new inorganic functional materials. Various thin film deposition schemes including pulsed laser deposition, co-sputtering, and electron-beam deposition are implemented for fabricating discrete combinatorial libraries as well as composition spreads of metal oxide systems and metallic alloy systems. A suite of high-throughput characterization tools including scanning microwave microscopes, scanning SQUID microscopes, a scanning magneto-optical Kerr effect set up, scanning x-ray diffractometers, and synchrotron microdiffraction are employed to track changes in physical properties of the materials as a function of sweeping composition changes. A common emphasis in all of our investigations is the need to obtain mapping of structural information across large compositional phase diagrams. In this talk, I will review some recent results from our group including the discovery of a lead-free piezoelectric material and the theory guided search for fatigue-free shape memory alloys.

For more information, contact Annette Mateus at (301) 405-5207 or amateus@umd.edu.

This Event is For: Public

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