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Hossein Sepehri-Amin
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Strategy for high-coercivity Nd–Fe–B magnets
K Hono, H Sepehri-Amin
Scripta Materialia 67 (6), 530-535, 2012
6632012
Grain boundary and interface chemistry of an Nd–Fe–B-based sintered magnet
H Sepehri-Amin, T Ohkubo, T Shima, K Hono
Acta Materialia 60 (3), 819-830, 2012
4032012
The mechanism of coercivity enhancement by the grain boundary diffusion process of Nd–Fe–B sintered magnets
H Sepehri-Amin, T Ohkubo, K Hono
Acta Materialia 61 (6), 1982-1990, 2013
3122013
High-coercivity ultrafine-grained anisotropic Nd–Fe–B magnets processed by hot deformation and the Nd–Cu grain boundary diffusion process
H Sepehri-Amin, T Ohkubo, S Nagashima, M Yano, T Shoji, A Kato, ...
Acta Materialia 61 (17), 6622-6634, 2013
3002013
Coercivity enhancement of hydrogenation–disproportionation–desorption–recombination processed Nd–Fe–B powders by the diffusion of Nd–Cu eutectic alloys
H Sepehri-Amin, T Ohkubo, T Nishiuchi, S Hirosawa, K Hono
Scripta Materialia 63 (11), 1124-1127, 2010
2622010
Effect of Nd content on the microstructure and coercivity of hot-deformed Nd–Fe–B permanent magnets
J Liu, H Sepehri-Amin, T Ohkubo, K Hioki, A Hattori, T Schrefl, K Hono
Acta Materialia 61 (14), 5387-5399, 2013
2342013
Microstructure of fine-grained Nd–Fe–B sintered magnets with high coercivity
H Sepehri-Amin, Y Une, T Ohkubo, K Hono, M Sagawa
Scripta Materialia 65 (5), 396-399, 2011
2232011
Grain size dependence of coercivity of hot-deformed Nd–Fe–B anisotropic magnets
J Liu, H Sepehri-Amin, T Ohkubo, K Hioki, A Hattori, T Schrefl, K Hono
Acta Materialia 82, 336-343, 2015
1982015
Micromagnetic simulations on the grain size dependence of coercivity in anisotropic Nd–Fe–B sintered magnets
H Sepehri-Amin, T Ohkubo, M Gruber, T Schrefl, K Hono
Scripta Materialia 89, 29-32, 2014
1892014
Distribution of Dy in high-coercivity (Nd, Dy)–Fe–B sintered magnet
WF Li, H Sepehri-Amin, T Ohkubo, N Hase, K Hono
Acta Materialia 59 (8), 3061-3069, 2011
1732011
Grain boundary structure and chemistry of Dy-diffusion processed Nd–Fe–B sintered magnets
H Sepehri-Amin, T Ohkubo, K Hono
Journal of Applied Physics 107 (9), 2010
1732010
High-coercivity hot-deformed Nd–Fe–B permanent magnets processed by Nd–Cu eutectic diffusion under expansion constraint
T Akiya, J Liu, H Sepehri-Amin, T Ohkubo, K Hioki, A Hattori, K Hono
Scripta Materialia 81, 48-51, 2014
1622014
Correlation of microchemistry of cell boundary phase and interface structure to the coercivity of Sm (Co0. 784Fe0. 100Cu0. 088Zr0. 028) 7.19 sintered magnets
H Sepehri-Amin, J Thielsch, J Fischbacher, T Ohkubo, T Schrefl, ...
Acta Materialia 126, 1-10, 2017
1612017
Microstructure and temperature dependent of coercivity of hot-deformed Nd–Fe–B magnets diffusion processed with Pr–Cu alloy
H Sepehri-Amin, L Liu, T Ohkubo, M Yano, T Shoji, A Kato, T Schrefl, ...
Acta Materialia 99, 297-306, 2015
1472015
Enhancement of coercivity of hot-deformed Nd–Fe–B anisotropic magnet by low-temperature grain boundary diffusion of Nd60Dy20Cu20 eutectic alloy
H Sepehri-Amin, J Liu, T Ohkubo, K Hioki, A Hattori, K Hono
Scripta Materialia 69 (9), 647-650, 2013
1322013
Magnetization reversal of exchange-coupled and exchange-decoupled Nd-Fe-B magnets observed by magneto-optical Kerr effect microscopy
M Soderžnik, H Sepehri-Amin, TT Sasaki, T Ohkubo, Y Takada, T Sato, ...
Acta Materialia 135, 68-76, 2017
1242017
Prospect for HRE-free high coercivity Nd-Fe-B permanent magnets
K Hono, H Sepehri-Amin
Scripta Materialia 151, 6-13, 2018
1212018
Coercivity and its thermal stability of NdFeB hot-deformed magnets enhanced by the eutectic grain boundary diffusion process
J Li, L Liu, H Sepehri-Amin, X Tang, T Ohkubo, N Sakuma, T Shoji, A Kato, ...
Acta Materialia 161, 171-181, 2018
1142018
Intrinsic magnetic properties of Sm (Fe1-xCox) 11Ti and Zr-substituted Sm1-yZry (Fe0. 8Co0. 2) 11.5 Ti0. 5 compounds with ThMn12 structure toward the development of permanent …
P Tozman, H Sepehri-Amin, YK Takahashi, S Hirosawa, K Hono
Acta Materialia 153, 354-363, 2018
1102018
Broadening the applications of the atom probe technique by ultraviolet femtosecond laser
K Hono, T Ohkubo, YM Chen, M Kodzuka, K Oh-Ishi, H Sepehri-Amin, F Li, ...
Ultramicroscopy 111 (6), 576-583, 2011
1092011
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