Left: Nanocrystalline Cu (by YJ Wang et al.)
Right: Tilt-boundary in Y-doped Al2O3 (by JP Buban et al.)


Acknowledgement
International Symposium of APCP has been successfully performed thanks to cooperation of all the participants, including distinguished researchers from abroad. We thank all the participants for their contributions.
We had 56 participants from ten countries and 45 research presentations were done in eight sessions and a poster session. About a half of them were on experiments and another half on computer modellings, indicating that our aim of interchange between experimentalists and theorists was fulfilled. We hope that similar symposiums will be held in the future to achieve our goal of quantitative understanding of crystal plasticity.

Shin Takeuchi
Organizing Chairperson


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133 Committee “Microstructures and Functions of Materials” of University-Industry Research Cooperation Program of Japan Society of Promotion of Science organizes the above compact international symposium, in which interactions between theorists and experimentalists are emphasized. We would like to welcome researchers in this field in the world to participate in the Symposium and to contribute to it.
Incidentally, the Symposium is held just before a related international conference “The 9th International Conference on Multiscale Materials Modeling” in Osaka, Japan.

Background and scope:
Crystal plasticity has been investigated mostly in terms of the theory of crystal dislocation, which developed rapidly after the Second World War. Various aspects of crystal plasticity had been formulated until 1980’s by the dislocation theory which was based mainly on the elasticity theory without reliable atomistic information. Hence, the present understanding of the crystal plasticity is more or less qualitative. From the end of 20th century, however, atomistic analyses have become possible due to the development of atomic resolution microscopy in the experimental side and to the development of first principle calculations in the theoretical side. It becomes now possible to analyze the crystal plasticity taking full account of atomistic analyses, and thus to bring about a better, hopefully quantitative, understanding of crystal strength. The Symposium lays particular emphasis on the interaction between theorists
and experimentalists, which seems so far quite lacking.

Main topics:
・(S)TEM characterization of dislocations and grain boundaries
・Grain boundary and dislocation atomic structures
・TEM in-situ observation of dislocation motion
・Peierls potential and kink-pair energy
・Interaction between dislocation and solute atoms or small precipitates
・Cutting interactions of dislocations
・Role of grain boundaries as source and sink of dislocations
・Effect of solute segregation on grain boundary cohesion
・Atomistic process of twinning and martensitic transformation
・Ductile to brittle transition
・Hydrogen embrittlement

Chairperson:
S. Takeuchi (Chairman of 133 Committee of JSPS, Prof. Emeritus of The University of Tokyo)
Executive Chairpersons:
Y. Ikuhara (Professor of The University of Tokyo)
S. Ogata (Professor of Osaka University)

Contact
apcp-sc@iis.u-tokyo.ac.jp
Y. Kamimura
Institute of Industrial Science, the University of Tokyo
4-5-1 Komaba, Meguro, Tokyo 153-8505, Japan