| Biography | |
|---|---|
 Dr. Hiroyuki Serizawa Japan Atomic Energy Agency (JAEA), Japan |
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| Title: Research on the image crystal, the cavity surrounded by facet. in ceramics | |
| Abstract: Recently, many scientists and engineers are interested in developing the model which can explain the growth of the materials from nano-scale to micron scale. As the clue to develop such kind of model, I keep my eye on the negative crystal formed in a fcc-type ceramic. In general, it is difficult to control arbitrarily the shapes of the polyhedral caity embedded in a solid medium; however, I found that the shape can easily be controlled. Our research team named the shape controllable negative crystal as image crystal. I discovered that three types of image crystals and determined the shape by reported value of the attachment energy and the step free energy model We conducted further research on the formation of image crystals in CeO2. | |
| Biography:
He is a primal researcher of Japan Atomic Energy Agency, and a apart-time lecture of Tokyo City University. His major is thermodynamics and crystallography. His Resent interest includes a formation and shape control of a cavity named negative crystal that is formed by a precipitation of helium in ceramics. He is a Representation researcher of Grant-in-Aid for Scientific Research（B）Representation researcher of JSPS KAKENHI Grant Number 23246174. From 2017, he will investigate the formation mechanism of the negative crystal for three years with his colleagues. He is also interested in a reaction between solid and unstable gas phase. Now, he is trying to clarify the phenomena from the viewpoint of thermodynamics and statistical thermodynamics.
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