Sending report ...Materials Science on the Atomic Scale with the 3-D Atom Probe
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| Contributor(s) | George D. W. Smith University of Oxford, Oxford, United Kingdom |
|---|---|
| Abstract | Some of the key goals of materials science and technology are to be able to design a material from first principles, to predict its behaviour, and also to optimise the processing route for its manufacture. In recent years, these goals have come closer to realisation, thanks in part to the introduction of the three dimensional atom probe (3DAP). This instrument permits the real-space experimental reconstruction of the positions and identities of the individual atoms in a solid specimen. The 3DAP has revealed a huge amount of new information about the atomic-scale structure and composition of materials. It has also provided a unique "bridge" between experiment and theory. For the first time, it has been possible to benchmark 3-D atomistic computer models, by inserting atomistic data from real experiments. This has greatly enhanced the value of the models, and improved the level of confidence that materials users place upon them. Three case studies will be used to illustrate this new approach to materials design: the nucleation of precipitates in aluminum alloys; the long-term thermal evolution of second phases in steels; and the development of improved processing routes for making multilayer thin film GMR read head devices for computer hard discs. |
| Biography | I am a materials scientist, with special interest in the study of the microstructure, composition and properties of engineering materials at the atomic level. I have led the development of new experimental techniques for the observation of solid materials in three dimensions on the atomic scale. I am author or co-author of 2 books and over 280 scientific papers, and have given presentations about my work at more than 100 scientific conferences and 150 laboratories around the world. From 2000 - 2005 I was Head of the Oxford University Department of Materials, which is the top UK university department in this field, with over 160 active researchers, and 100 undergraduate students. |
| Sponsored by | Materials Science and Engineering Seminar, Purdue University, West Lafayette, IN |
| Cite this work | If you reference this work in a publication, please cite as follows: |
| Date posted | 16 Nov, 2006 |
| Time | 04:30 PM, October 20, 2006 |
| Location | MSEE B12 |
| Type | Online Presentations |
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