Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Kazuhito Ohsawa Last modified date:2024.03.19

Assistant Professor / Division of Nuclear Fusion Dynamics / Research Institute for Applied Mechanics


Presentations
1. Stable structure of vacancy clusters in tungsten and interaction to impurities.
2. Simulation for helium in Fe-vacancy and copper precipitation.
3. Interaction between vacancy and copper atom in iron and helium effect on it.
4. Kazuhito Ohsawa, Takeshi Toyama, Yuji Hatano, Masatake Yamaguchi, Hideo Watanabe, Interaction of divacancy with hydrogen in tungsten and stability induced by interstitial atoms, ICFRM19 (The 19th International Conference on Fusion Reactor Materials), 2019.10.
5. K. Ohsawa, T. Toyama, Y. Hatano, M. Yamaguchi, H. Watanabe, Anomalous Properties of Vacancy in Tungsten and Interaction with Hydrogen, Models and Data forvPlasma-Material Interaction in Fusion Devices (MoD-PMI 2019), 2019.06.
6. 大澤 一人, Unique phenomena of tungsten associated with fusion reactor: uncertainties of stable hydrogen configuration trapped in tungsten vacancy, Technical meeting of the international code center network held in IAEA, 2015.07.
7. Hydrogen trapping in a single vacancy formed in tungsten.
8. Hydrogen trapping at a single vacancy in tungsten and its stable structure.
9. First principle calculations of hydrogen trapping at a single vacancy in tungsten.
10. Study on hydrogen retention in a regular grain boundary in tungsten and hydrogen induced embrittlement.
11. Study on dislocation loops in terms of the anisotropic elasticity theory.
12. Hydrogen retention in tungsten and its stable structure.
13. Stress function for dislocation loops in anisotropic crystals.
14. Study on stress function for a dislocation in an anisotropic crystal.
15. Study of Dislocation Loops in Cubic Crystals.
16. Equilibrium structure and thermal activation of dislocation loops in BCC metals.
17. study of thermal activation process of dislocation loops within a lattice model.
18. Study of thermal activation process of dislocation loops with transition path.
19. Activation Energy for a One-Dimensional Slip Motion of a Dislocation Loop.
20. Thermally Activated Process of Dislocation loops with high symmetry.
21. Thermally activated process of a dislocation loop and self-energy.
22. Thermally activated process of a dislocation loop and effect of the self innteraction.
23. Migration process and activation energy of dislocation loops within a string model.
24. Activation Energy of a Dislocation Loop in BCC Crystal.
25. Diffusion process and activation energy of dislocation loops (in terms of a line tension model).
26. Activation enerygy of a dislocation loop.
27. Calculation for activation energy of dislocation loop in an elastic model.
28. Activation Energy for Double-Kink Formation on a Dislocation Line Estimated in a Finite Temperature 3D Crystal.
29. Kink Pair Formation Process of a Screw Dislocation in a Lattice.
30. Behavior of a Screw Dislocation in a Finite Temperature.
31. Non-Reflecting Boundary Condition for Sound Propagating in a Lattice.
32. Non-Reflecting Boundary Condition for Sound with a Moving Dislocation.
33. Simulation of a Moving Screw Dislocation with Non-Reflecting Boundary Condition.
34. Simulation with Many Atoms.
35. Introduction.
36. Culculation of Peierls stress under flexible boundary condition.
37. Application of Flexible Boundary Condition to Simulations of Crack Propagation.