Fyzikální ústav Akademie věd ČR

FZÚ v médiích

Český rozhlas Leonardo, 27.6.2010.

Přestože od úmrtí světoznámé...

Český rozhlas, 10.6.2010.

O novém vynálezu levných a účinných...

Semináře

Po, 19/07/2010 - 10:00 - 11:00

prof. Masamichi Hikosaka (Graduate School of Integrated Arts and Sciences, Hiroshima University, Kagamiyama 171, Hiroshima 7398521, Japan)

Materials can be divided into hard and soft materials. Typical examples are inorganic metals and polymers, respectively. The polymers show significant ability of “selforganization” that results in high performances and functions and finally produced lives on this planet. We have solved the problem of polymer self-organization by proposing a so called “chain sliding diffusion theory” and explained polymer crystallization mechanism.
We will talk on a recent topic that we succeeded for the first time in controlling the entanglement and chain sliding diffusion in polymer crystallization and in producing a novel morphology of nano‐oriented crystals…

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Po, 19/07/2010 - 14:00 - 15:00

Kiyoka Okada (Graduate School of Integrated Arts and Sciences, Hiroshima University, Japan)

Crystallization from the melt or gas is one of the most popular and well-known phenomena in any materials. Nucleation which is the early process of crystallization controls significantly structure and physical properties. Although classical nucleation theory (CNT) assumed theoretically the nucleation in the 1930s, nobody could succeed in confirming the nucleation because of technical difficulties.

We succeeded in experimental confirmation of nucleation of nano-nuclei of polyethylene (PE) for the first time by means of small angle X-ray scattering (SAXS).

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Út, 20/07/2010 - 13:00 - 14:00

Julien Pernot (Institut Néel - CNRS)

Continuous progress in the doping process of diamond has recently resulted in the fabrication of new diamond-based devices for opto- or electronic applications. In the forthcoming years, provided the processing technology can be fully mastered, this will make diamond a key material for manufacturing high-power, high-temperature, and high-speed electronic devices.

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