English

Associate Professor: AIHARA Tomoyasu, Dr. Eng.

Affiliation:

Department of Mechanical Science and Technology
School of Science and Technology
Gunma University

Contact Address:

Tenjin-cho 1-5-1, Kiryu, Gunma 376-8515, JAPAN

E-mail:

Research Fields:

Molecular Dynamics Simulation, Computational Mechanics, Materials Engineering, Shockwave, Micro Fluid Dynamics, Phase Transformation, Solid Sate Physics

Professional Activities:

Japan Society of Mechanical Engineers
Japan Institute of Metals
The Society of Materials Science, Japan
Physical Society of Japan
The Molecular Simulation Society of Japan
Society of Computer Chemistry, Japan

Books:

1. Formation of amorphous alloys T. Aihara, Jr. In Y. Kawazoe (ed.), Phase diagrams and physical properties of nonequilibrium alloys, Landolt-Bornstein, Numerical data and functional relationship in science and technology, GroupIII Vol.37A, (1997), Springer, pp.13-19.
2. Mesoscopic Dynamics of Fracture, Edited by Hiroshi Kitagawa, Tomoyasu Aihara, Jr., and Yoshiyuki Kawazoe, Advances in Materials Research Vol.1.

Publication Lists:

1. Numerical analysis of computational distribution change in functionally gradient materials T. Aihara, M. Kaji and T. Igarashi, J. Japan Inst. Metals, Vol.54, No.7, (1990) pp.758-763. (in Japanese)
2. Formation conditions and crystallization of hydrogen-induced amorphous RNi2Hx (R=Sm, Gd, Dy, Ho, Er) alloys, T. Aihara, K. Aoki, and T. Masumoto, J. Japan Inst. Metals, Vol.54, No.9, (1990) pp.970-975. (in Japanese)
3. Formation process of hydrogen-induced amorphous RNi2Hx (R=Sm, Gd, Ho, Er) alloys, T. Aihara, K. Aoki, and T. Masumoto, J. Japan Inst. Metals, Vol.54, No.11, (1990) pp.1199-1204. (in Japanese)
4. Numerical analysis of mass diffusion and heat conduction phenomena in metal/carbide composite by thermomigration, T. Aihara, M. Kaji and T. Igarashi, Proceedings of the 1st international conference and exhibition on computer applications to materials science and engineering -CAMSE'90, Tokyo, August 28-31, 1990, (Elsevier), pp.957-960.
5. Numerical analysis of compositional distribution change in metal/carbide functionally gradient material by thermal diffusion, T. Aihara, M. Kaji and T. Igarashi, Proceedings of the 1st international symposium, FGM, Sendai, October 8-9, 1990, pp.39-43. 6. Amorphization of intermetallic compounds by hydrogen absorption, K. Aoki, X. -G. Li, T. Aihara and T. Masumoto, Mater. Sci. Eng. Vol.A133, (1991) pp.316-320.
7. Thermal stability and Hydrogen desorption behavior of hydrogen-induced amorphous alloys, X. -G. Li, T. Aihara, Jr., K. Aoki, and T. Masumoto, Sci. Rep. RITU, Vol.A36, No.2, (1992) pp.285-299.
8. Formation and crystallization of hydrogen-induced amorphous RNi2Hx (R=Sm, Gd, Dy, Ho, Er) alloys, T. Aihara, Jr., K. Aoki and T. Masumoto, Mater. Trans. JIM, Vol.33, No.1, (1992) pp.15-22.
9. Differential scanning calorimetric study of solid state amorphization and crystallization in Zr/Co and Zr/Ni multilayers, T. Aihara, Jr., K. Aoki and T. Masumoto, Sci. Rep. RITU, Vol.A38, No.1, (1993) pp.24-33.
10. Computational study of structural change through the glass transition in an amorphous and liquid Zr-Ni alloy, T. Aihara, Jr., K. Aoki and T. Masumoto, Scr. Metall. Mater., Vol.28, No.8, (1993) pp.1003-1006.
11. Atomistic computer simulation for liquid-glass transition in Zr-Ni alloy, T. Aihara, Jr., K. Aoki and T. Masumoto, Mater. Sci. Eng., Vol.A179&A180, (1994) pp.256-260.
12. Kinetics of solid state amorphization in multilayer thin films induced by interdiffusion, T. Aihara, Jr., K. Aoki and T. Masumoto, Trans. Mat. Res. Soc. Jpn., Vol.16A, (1994) pp.105-108.
13. Dispersion of collective excitations of amorphous and liquid Zr67Ni33 alloys, T. Aihara, Jr. and T. Masumoto, J. Phys. Condensed Matter, Vol.7, No.8, (1995) pp.1525-1541.
14. Molecular dynamics study on vibrational motion of amorphous and liquid Zr67Ni33 alloys, T. Aihara, Jr., K. Aoki and T. Masumoto, Mater. Trans. JIM, Vol.36, No.3, (1995) pp.397-405.
15. Molecular dynaimics study for structure and dynamics of amorphous and liquid Zr67Ni33 alloys, T. Aihara, Jr., Y. Kawazoe and T. Masumoto, Sci. Rep. RITU, Vol.A41, No.1, (1995) pp.1-8.
16. Molecular dynamics study of structural relaxation and dynamical correlations in amorphous and liquid Zr67Ni33 alloys, T. Aihara, Jr., Y. Kawazoe and T. Masumoto, Mater. Trans. JIM, Vol.36, No.7, (1995) pp.835-841.
17. Molecular dynamics simulation of phase separation in Lennard-Jones Liquids, T. Aihara, Jr., Y. Kawazoe and T. Masumoto, Sci. Rep. RITU, Vol.A41, No.2, (1996) pp.89-96.
18. Ab-initio molecular dynamics simulation of water clusters, T. Ikeshoji, T. Aihara, Jr., K. Ohno and Y. Kawazoe, Sci. Rep. RITU, Vol.A41, No.2, (1996) pp.175-182.
19. Molecular dynamics study of structural and dynamical properties of ZrxNi100-x (x = 0 ~ 100) amorphous and liquid alloys, T. Aihara, Jr., Y. Kawazoe and T. Masumoto, Sci. Rep. RITU, Vol.A42, No.1, (1996) pp.57-63.
20. Surface Characterization of sputter-deposited Cu-Ta alloys by Auger electron specroscopy, K. Asami, T. Moriya, T. Aihara, Jr. and T. Masumoto, Sci. Rep. RITU, Vol.A42, No.1, (1996) pp.225-229.
21. Molecular dynamics simulation of deformation and fracture in metallic materials, T. Aihara, Jr., Y. Kawazoe and T. Masumoto, Proceedings of the international workshop on computer modelling and simulation for materials design, Tsukuba, January 31-February 2, (1996), pp.191-196.
22. Molecular dynamics study for diffusion process in amorphous and supercooled liquid Zr67Ni33 alloys, T. Aihara, Jr., Y. Kawazoe and T. Masumoto, Mater. Sci. Eng., Vol.B37, (1996) pp.201-204.
23. Molecular dynamics study on grain boundary in intermetallic compound, T. Aihara, Jr., T. Masumoto and Y. Kawazoe, Proceedings of the international conference on modelling and simulation in metallurgical engineering and materials science, Bejing, (1996), pp.33-37.
24. Molecular dynamics study of ZrxNi100-x (x = 0 ~ 100) liquid and rapidly quenched amorphous alloys, T. Aihara, Jr., T. Masumoto and Y. Kawazoe, Proceedings of the international centre for heat and mass transfer (ICHMT) symposium on molecular and microscale heat transfer in materials processing and other applications, Yokohama, (1996), pp.189-198.
25. Structural study of amorphous GdM2 (M = Fe, Co, Ni) alloys by the anormalous X-ray scattering (AXS) method, M. Saito, Y. Waseda, E. Matsubara, X.-M. Wang, T. Aihara, K. Aoki and T. Masumoto, J. non-Cry. Solids. Vol.205-207, (1996) pp.721-727.
26. Molecular dynamics simulation for binary amorphous Zr-Ni alloys, T. Aihara, Jr., Y. Kawazoe and T. Masumoto, J. non-Cry. Solids. Vol.205-207, (1996) pp.875-878.
27. Molecular Dynamics Study on Microstructure in Phase Separated Binary Lennard-Jones Liquid, T. Aihara, Jr. and Y. Kawazoe, Prog. Theoretical Phys. Sup., No.126 (1997) pp.355-358.
28. Oxidation Behavior of Sputter-Deposited Cu-Ta Alloys in Air, Asami, T. Moriya, T. Aihara, Jr., K. Hashimoto and T. Masumoto, Mater. Sci. Eng., Vol.A226-228, (1997) pp.925-929.
29. Multimedia Database System KIND Featuring Amorphous Factual Database by Object-Oriented Method, Kawazoe Yoshiyuki, Ohno Kaoru, Tsai An Pang, Yu Jing Zhi, Aihara Tomoyasu, Jr., Mizuseki Hiroshi, Ishihara Masahito, Ikeda Makoto, Kojima Masami, Nakanomyo Takashi, Akiyama Yoko, Itoh Toshiyuki, Wada Shigeo and Mori Noriko, Computerization and Networking of Materials Databases (ASTM STP 1311), (1997) pp.103-116.
30. Molecular Dynamics Simulation of Tensile Deformation of Amorphous Zr67Ni33 Alloy, T. Aihara, Jr. and Y. Kawazoe, Advaces in Materials Research, Vol.1, (1998) pp.76-87.
31. Possible Application of the First-Principles Simulation to Evaluation of Materials Strength, Y. Kawazoe and T. Aihara, Jr., J. Soc. Mater. Sci. Japan, Vol.47, (1998) pp.1099-1105.
32. Molecular Dynamics Simulation on Elastic Behavior of Ni/Ni3Al Interface with Graded Structure, T. Aihara, Jr., T. Sho and Y. Kawazoe, J. Japan Inst. Metals, Vol.62, No.11, (1998) pp.978-985. (in Japanese)
33. Molecular Dynamics Simulation on Deformation Dynamics of Ni and Ni3Al Single Crystals and Ni/Ni3Al Composite Crystal, T. Aihara and T. Sho, Mater. Trans. JIM, Vol.40, No.11, (1999) pp.1281-1287.
34. Molecular dynamics simulation of temperature dependence of dislocation speed in fcc Ni single crystal under tensile condition, Tomoyasu AIHARA, Ryota KANEKO, Marcel H. F. SLUITER and Yoshiyuki KAWAZOE, Mater. Trans. JIM, Vol.42, (2001) pp. 187-190.
35. Molecular Dynamics Simulation on Deformation Dynamics of Ni/Ni3Al Composite with FGM or NFGM Type Interface, T. Aihara, T. Sho and Y. Kawazoe, Advaces in Materials Research.