Hossein Sepehri Amin

Post Doctoral Fellow , National Institute for materials Science.
email: h.sepehriamin@nims.go.jp
Phone: +81-298-59-2874 Fax:+81-298-59-2701

• Ph.D. Graduate School of Pure and Applied Sciences, University of Tsukuba, 2011(March)
• M.Sc. Department of Materials Science and Engineering, Isfahan University of Technology, 2008 (Feb.)
• B.S. Department of Materials Science and Engineering, Tehran University, 2005(Sep.)

• Development of high performance permanent magnets via composition, processing, and microstructure modification.
• Microstructural characterization (electron microscopy, Atom probe field ion microscopy )

• 1) W. F. Li, H. Sepehri-Amin, T. Ohkubo, N. Hase, and K. Hono , gDistribution of Dy in high coercivity (Nd,Dy)-Fe-B sintered magnetsh, Acta Mater. 59 (2011) 3061.
• 2) N. Nozawa, H. Sepehri-Amin, T. Ohkubo, K. Hono, T. Nishiuchi, S. Hirosawa, g Coercivity enhancement of HDDR-processed Nd-Fe-B permanent magnet by rapid hot-press consolidation processh, J. Mag. Mag. Mater. 323 (2011) 115.
• 3) H. Sepehri-Amin, W.F. Li, T. Ohkubo, T. Nishiuchi, S. Hirosawa, K. Hono, gEffect of Ga addition on the microstructure and magnetic properties of hydrogenation-disproportionation-desorption-recombination processed Nd-Fe-B powderh, Acta Mater. 58 (2010) 1309?1316.
• 4) H. Sepehri-Amin, T. Ohkubo, T. Nishiuchi, S. Hirosawa, K. Hono, gCoercivity enhancement of hydrogenation-disproportionation-desorption-recombination processed Nd-Fe-B powders by the diffusion of Nd-Cu eutectic alloysh, Scripta Mater. 63 (2010) 1124.
• 5) H. Sepehri-Amin, T. Ohkubo, T. Nishiuchi, S. Hirosawa, K. Hono, gQuantitative laser atom probe analyses of hydrogenation-disproportionated Nd-Fe-B powdersh, Ultramicroscopy (2010), doi:10.1016/j.ultramic.2010.11.015
• 6) H. Sepehri-Amin, T. Ohkubo, K. Hono, gGrain boundary structure and chemistry of Dy-diffusion processed Nd-Fe-B sintered magnetsh, J. Appl. Phys. 107 (2010) 09A745.
• 7) K. Hono, T. Ohkubo, Y. M. Chen, M. Kodzuka, K. Oh-ishi, H. Sepehri-Amin, F. Li, T. Kinno, S. Tomiya, Y. Kanitani, gBroadening the applications of the atom probe technique by ultraviolet femtosecond laserh, Ultramicroscopy (2010), doi:10.1016/j.ultramic.2010.11.020.
• 8) R Gopalan, H. Sepehri-Amin, K. Suresh, T. Ohkubo, K. Hono, T. Nishiuchi, N. Nozawa, S. Hirosawa, gAnisotropic Nd-Fe-B nanocrystalline magnets processed by spark plasma sintering and in-situ hot pressing of hydrogenation-decomposition-desorption-recombination powderh, Scripta Mater. 61 (2009) 978.
• 9) H. Sepehri Amin, R. Gholamipour, F. Shahri, A. Mohammadi, gEffect of Al substitution for B on magnetic and structural properties of Co-based melt-spun ribbonsh, J. Magn. Magn. Mater. 320 (2008) 2259.
• 10) A. Kermanpur, H. Sepehri Amin, S. Ziaei-rad, N. Nourbakhshnia, M. Mosaddeghfar, gFailure analysis of Ti6Al4V gas turbine compressor bladesh, Engineering Failure Analysis 15 (2008) 1052.
• 11) S. A. Seyyed Ebrahimi, H. Sepehri Amin, Y. Hormozan, P. Tabibzadeh, gOptimization of the effective parameters on the synthesis of the Mn-Zn ferrite powder with a high saturation magnetization using different Iranian routs of iron oxideh, Key Engineering Materials, 336-338 (2007) 703.
• 12) N. Nourbakshnia, S. Ziaei-Rad, A. Kermanpur, H. Sepehri-Amin, gNumerical simulation and Experimental investigation of a Gas Turbine Compressor Bladeh, Key Engineering Materials, 385-387 (2008) 401.