Enhancement of coercivity and thermal stability of Pr
Magnetic-property modification and thermal stability improvement for high-performance NdFeB magnets by dual-alloy (DA) sintering with Pr85Al15 (PrAl) together with grain boundary diffusion (GBD) with Tb55Pr20Cu25 (TbPrCu) is demonstrated. The coercivity is increased from 14.9 to 16.4–18.0 kOe for th...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Wong, Y.J. [verfasserIn] Lin, B.S. [verfasserIn] Chang, H.W. [verfasserIn] Chang, W.C. [verfasserIn] Chiu, C.H. [verfasserIn] Mo, C.C. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Journal of magnetism and magnetic materials - Amsterdam : North-Holland Publ. Co., 1975, 571 |
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| Übergeordnetes Werk: |
volume:571 |
| DOI / URN: |
10.1016/j.jmmm.2023.170562 |
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| Katalog-ID: |
ELV009387021 |
|---|
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| 245 | 1 | 0 | |a Enhancement of coercivity and thermal stability of Pr |
| 264 | 1 | |c 2023 | |
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| 520 | |a Magnetic-property modification and thermal stability improvement for high-performance NdFeB magnets by dual-alloy (DA) sintering with Pr85Al15 (PrAl) together with grain boundary diffusion (GBD) with Tb55Pr20Cu25 (TbPrCu) is demonstrated. The coercivity is increased from 14.9 to 16.4–18.0 kOe for the magnet DA sintering with 2–4 % PrAl. Pr and Al at grain boundary strengthens magnetic decoupling effect. In addition, a thin layer of (Nd, Pr)2Fe14B with higher magnetocrystalline anisotropy field (HA) is formed at grain surface. Both effects contribute to the coercivity enhancement for the magnets prepared by DA sintering with PrAl. Furthermore, remarkable coercivity enhancement, from 14.9 to 18.0 kOe to 22.7–27.1 kOe, with improved thermal stability is attained for the above magnets after GBD with Tb55Pr20Cu25 alloy. Besides, the increased Curie temperature of 2:14:1 phase indicates the entrance of Tb into 2:14:1 phase and helps to improve thermal stability. Most importantly, various magnetic levels of high-performance NdFeB magnets, including 48–52 M, 45H, 50SH and 40-45UH, can be easily attained by modifying the amount of PrAl for DA sintered magnets and/or GBD with TbPrCu alloys. | ||
| 650 | 4 | |a Dual-alloy sintering | |
| 650 | 4 | |a Sintered NdFeB magnets | |
| 650 | 4 | |a Grain boundary diffusion | |
| 650 | 4 | |a Coercivity enhancement | |
| 700 | 1 | |a Lin, B.S. |e verfasserin |4 aut | |
| 700 | 1 | |a Chang, H.W. |e verfasserin |4 aut | |
| 700 | 1 | |a Chang, W.C. |e verfasserin |4 aut | |
| 700 | 1 | |a Chiu, C.H. |e verfasserin |4 aut | |
| 700 | 1 | |a Mo, C.C. |e verfasserin |4 aut | |
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| 936 | b | k | |a 33.16 |j Elektrizität |j Magnetismus |
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10.1016/j.jmmm.2023.170562 doi (DE-627)ELV009387021 (ELSEVIER)S0304-8853(23)00211-1 DE-627 ger DE-627 rda eng 530 DE-600 33.16 bkl Wong, Y.J. verfasserin aut Enhancement of coercivity and thermal stability of Pr 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Magnetic-property modification and thermal stability improvement for high-performance NdFeB magnets by dual-alloy (DA) sintering with Pr85Al15 (PrAl) together with grain boundary diffusion (GBD) with Tb55Pr20Cu25 (TbPrCu) is demonstrated. The coercivity is increased from 14.9 to 16.4–18.0 kOe for the magnet DA sintering with 2–4 % PrAl. Pr and Al at grain boundary strengthens magnetic decoupling effect. In addition, a thin layer of (Nd, Pr)2Fe14B with higher magnetocrystalline anisotropy field (HA) is formed at grain surface. Both effects contribute to the coercivity enhancement for the magnets prepared by DA sintering with PrAl. Furthermore, remarkable coercivity enhancement, from 14.9 to 18.0 kOe to 22.7–27.1 kOe, with improved thermal stability is attained for the above magnets after GBD with Tb55Pr20Cu25 alloy. Besides, the increased Curie temperature of 2:14:1 phase indicates the entrance of Tb into 2:14:1 phase and helps to improve thermal stability. Most importantly, various magnetic levels of high-performance NdFeB magnets, including 48–52 M, 45H, 50SH and 40-45UH, can be easily attained by modifying the amount of PrAl for DA sintered magnets and/or GBD with TbPrCu alloys. Dual-alloy sintering Sintered NdFeB magnets Grain boundary diffusion Coercivity enhancement Lin, B.S. verfasserin aut Chang, H.W. verfasserin aut Chang, W.C. verfasserin aut Chiu, C.H. verfasserin aut Mo, C.C. verfasserin aut Enthalten in Journal of magnetism and magnetic materials Amsterdam : North-Holland Publ. Co., 1975 571 Online-Ressource (DE-627)271175958 (DE-600)1479000-2 (DE-576)078412331 0304-8853 nnns volume:571 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.16 Elektrizität Magnetismus AR 571 |
| spelling |
10.1016/j.jmmm.2023.170562 doi (DE-627)ELV009387021 (ELSEVIER)S0304-8853(23)00211-1 DE-627 ger DE-627 rda eng 530 DE-600 33.16 bkl Wong, Y.J. verfasserin aut Enhancement of coercivity and thermal stability of Pr 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Magnetic-property modification and thermal stability improvement for high-performance NdFeB magnets by dual-alloy (DA) sintering with Pr85Al15 (PrAl) together with grain boundary diffusion (GBD) with Tb55Pr20Cu25 (TbPrCu) is demonstrated. The coercivity is increased from 14.9 to 16.4–18.0 kOe for the magnet DA sintering with 2–4 % PrAl. Pr and Al at grain boundary strengthens magnetic decoupling effect. In addition, a thin layer of (Nd, Pr)2Fe14B with higher magnetocrystalline anisotropy field (HA) is formed at grain surface. Both effects contribute to the coercivity enhancement for the magnets prepared by DA sintering with PrAl. Furthermore, remarkable coercivity enhancement, from 14.9 to 18.0 kOe to 22.7–27.1 kOe, with improved thermal stability is attained for the above magnets after GBD with Tb55Pr20Cu25 alloy. Besides, the increased Curie temperature of 2:14:1 phase indicates the entrance of Tb into 2:14:1 phase and helps to improve thermal stability. Most importantly, various magnetic levels of high-performance NdFeB magnets, including 48–52 M, 45H, 50SH and 40-45UH, can be easily attained by modifying the amount of PrAl for DA sintered magnets and/or GBD with TbPrCu alloys. Dual-alloy sintering Sintered NdFeB magnets Grain boundary diffusion Coercivity enhancement Lin, B.S. verfasserin aut Chang, H.W. verfasserin aut Chang, W.C. verfasserin aut Chiu, C.H. verfasserin aut Mo, C.C. verfasserin aut Enthalten in Journal of magnetism and magnetic materials Amsterdam : North-Holland Publ. Co., 1975 571 Online-Ressource (DE-627)271175958 (DE-600)1479000-2 (DE-576)078412331 0304-8853 nnns volume:571 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.16 Elektrizität Magnetismus AR 571 |
| allfields_unstemmed |
10.1016/j.jmmm.2023.170562 doi (DE-627)ELV009387021 (ELSEVIER)S0304-8853(23)00211-1 DE-627 ger DE-627 rda eng 530 DE-600 33.16 bkl Wong, Y.J. verfasserin aut Enhancement of coercivity and thermal stability of Pr 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Magnetic-property modification and thermal stability improvement for high-performance NdFeB magnets by dual-alloy (DA) sintering with Pr85Al15 (PrAl) together with grain boundary diffusion (GBD) with Tb55Pr20Cu25 (TbPrCu) is demonstrated. The coercivity is increased from 14.9 to 16.4–18.0 kOe for the magnet DA sintering with 2–4 % PrAl. Pr and Al at grain boundary strengthens magnetic decoupling effect. In addition, a thin layer of (Nd, Pr)2Fe14B with higher magnetocrystalline anisotropy field (HA) is formed at grain surface. Both effects contribute to the coercivity enhancement for the magnets prepared by DA sintering with PrAl. Furthermore, remarkable coercivity enhancement, from 14.9 to 18.0 kOe to 22.7–27.1 kOe, with improved thermal stability is attained for the above magnets after GBD with Tb55Pr20Cu25 alloy. Besides, the increased Curie temperature of 2:14:1 phase indicates the entrance of Tb into 2:14:1 phase and helps to improve thermal stability. Most importantly, various magnetic levels of high-performance NdFeB magnets, including 48–52 M, 45H, 50SH and 40-45UH, can be easily attained by modifying the amount of PrAl for DA sintered magnets and/or GBD with TbPrCu alloys. Dual-alloy sintering Sintered NdFeB magnets Grain boundary diffusion Coercivity enhancement Lin, B.S. verfasserin aut Chang, H.W. verfasserin aut Chang, W.C. verfasserin aut Chiu, C.H. verfasserin aut Mo, C.C. verfasserin aut Enthalten in Journal of magnetism and magnetic materials Amsterdam : North-Holland Publ. Co., 1975 571 Online-Ressource (DE-627)271175958 (DE-600)1479000-2 (DE-576)078412331 0304-8853 nnns volume:571 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.16 Elektrizität Magnetismus AR 571 |
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10.1016/j.jmmm.2023.170562 doi (DE-627)ELV009387021 (ELSEVIER)S0304-8853(23)00211-1 DE-627 ger DE-627 rda eng 530 DE-600 33.16 bkl Wong, Y.J. verfasserin aut Enhancement of coercivity and thermal stability of Pr 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Magnetic-property modification and thermal stability improvement for high-performance NdFeB magnets by dual-alloy (DA) sintering with Pr85Al15 (PrAl) together with grain boundary diffusion (GBD) with Tb55Pr20Cu25 (TbPrCu) is demonstrated. The coercivity is increased from 14.9 to 16.4–18.0 kOe for the magnet DA sintering with 2–4 % PrAl. Pr and Al at grain boundary strengthens magnetic decoupling effect. In addition, a thin layer of (Nd, Pr)2Fe14B with higher magnetocrystalline anisotropy field (HA) is formed at grain surface. Both effects contribute to the coercivity enhancement for the magnets prepared by DA sintering with PrAl. Furthermore, remarkable coercivity enhancement, from 14.9 to 18.0 kOe to 22.7–27.1 kOe, with improved thermal stability is attained for the above magnets after GBD with Tb55Pr20Cu25 alloy. Besides, the increased Curie temperature of 2:14:1 phase indicates the entrance of Tb into 2:14:1 phase and helps to improve thermal stability. Most importantly, various magnetic levels of high-performance NdFeB magnets, including 48–52 M, 45H, 50SH and 40-45UH, can be easily attained by modifying the amount of PrAl for DA sintered magnets and/or GBD with TbPrCu alloys. Dual-alloy sintering Sintered NdFeB magnets Grain boundary diffusion Coercivity enhancement Lin, B.S. verfasserin aut Chang, H.W. verfasserin aut Chang, W.C. verfasserin aut Chiu, C.H. verfasserin aut Mo, C.C. verfasserin aut Enthalten in Journal of magnetism and magnetic materials Amsterdam : North-Holland Publ. Co., 1975 571 Online-Ressource (DE-627)271175958 (DE-600)1479000-2 (DE-576)078412331 0304-8853 nnns volume:571 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.16 Elektrizität Magnetismus AR 571 |
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10.1016/j.jmmm.2023.170562 doi (DE-627)ELV009387021 (ELSEVIER)S0304-8853(23)00211-1 DE-627 ger DE-627 rda eng 530 DE-600 33.16 bkl Wong, Y.J. verfasserin aut Enhancement of coercivity and thermal stability of Pr 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Magnetic-property modification and thermal stability improvement for high-performance NdFeB magnets by dual-alloy (DA) sintering with Pr85Al15 (PrAl) together with grain boundary diffusion (GBD) with Tb55Pr20Cu25 (TbPrCu) is demonstrated. The coercivity is increased from 14.9 to 16.4–18.0 kOe for the magnet DA sintering with 2–4 % PrAl. Pr and Al at grain boundary strengthens magnetic decoupling effect. In addition, a thin layer of (Nd, Pr)2Fe14B with higher magnetocrystalline anisotropy field (HA) is formed at grain surface. Both effects contribute to the coercivity enhancement for the magnets prepared by DA sintering with PrAl. Furthermore, remarkable coercivity enhancement, from 14.9 to 18.0 kOe to 22.7–27.1 kOe, with improved thermal stability is attained for the above magnets after GBD with Tb55Pr20Cu25 alloy. Besides, the increased Curie temperature of 2:14:1 phase indicates the entrance of Tb into 2:14:1 phase and helps to improve thermal stability. Most importantly, various magnetic levels of high-performance NdFeB magnets, including 48–52 M, 45H, 50SH and 40-45UH, can be easily attained by modifying the amount of PrAl for DA sintered magnets and/or GBD with TbPrCu alloys. Dual-alloy sintering Sintered NdFeB magnets Grain boundary diffusion Coercivity enhancement Lin, B.S. verfasserin aut Chang, H.W. verfasserin aut Chang, W.C. verfasserin aut Chiu, C.H. verfasserin aut Mo, C.C. verfasserin aut Enthalten in Journal of magnetism and magnetic materials Amsterdam : North-Holland Publ. Co., 1975 571 Online-Ressource (DE-627)271175958 (DE-600)1479000-2 (DE-576)078412331 0304-8853 nnns volume:571 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.16 Elektrizität Magnetismus AR 571 |
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Wong, Y.J. @@aut@@ Lin, B.S. @@aut@@ Chang, H.W. @@aut@@ Chang, W.C. @@aut@@ Chiu, C.H. @@aut@@ Mo, C.C. @@aut@@ |
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Wong, Y.J. |
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Wong, Y.J. ddc 530 bkl 33.16 misc Dual-alloy sintering misc Sintered NdFeB magnets misc Grain boundary diffusion misc Coercivity enhancement Enhancement of coercivity and thermal stability of Pr |
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530 DE-600 33.16 bkl Enhancement of coercivity and thermal stability of Pr Dual-alloy sintering Sintered NdFeB magnets Grain boundary diffusion Coercivity enhancement |
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ddc 530 bkl 33.16 misc Dual-alloy sintering misc Sintered NdFeB magnets misc Grain boundary diffusion misc Coercivity enhancement |
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ddc 530 bkl 33.16 misc Dual-alloy sintering misc Sintered NdFeB magnets misc Grain boundary diffusion misc Coercivity enhancement |
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ddc 530 bkl 33.16 misc Dual-alloy sintering misc Sintered NdFeB magnets misc Grain boundary diffusion misc Coercivity enhancement |
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Enhancement of coercivity and thermal stability of Pr |
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Enhancement of coercivity and thermal stability of Pr |
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Wong, Y.J. Lin, B.S. Chang, H.W. Chang, W.C. Chiu, C.H. Mo, C.C. |
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Wong, Y.J. |
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enhancement of coercivity and thermal stability of pr |
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Enhancement of coercivity and thermal stability of Pr |
| abstract |
Magnetic-property modification and thermal stability improvement for high-performance NdFeB magnets by dual-alloy (DA) sintering with Pr85Al15 (PrAl) together with grain boundary diffusion (GBD) with Tb55Pr20Cu25 (TbPrCu) is demonstrated. The coercivity is increased from 14.9 to 16.4–18.0 kOe for the magnet DA sintering with 2–4 % PrAl. Pr and Al at grain boundary strengthens magnetic decoupling effect. In addition, a thin layer of (Nd, Pr)2Fe14B with higher magnetocrystalline anisotropy field (HA) is formed at grain surface. Both effects contribute to the coercivity enhancement for the magnets prepared by DA sintering with PrAl. Furthermore, remarkable coercivity enhancement, from 14.9 to 18.0 kOe to 22.7–27.1 kOe, with improved thermal stability is attained for the above magnets after GBD with Tb55Pr20Cu25 alloy. Besides, the increased Curie temperature of 2:14:1 phase indicates the entrance of Tb into 2:14:1 phase and helps to improve thermal stability. Most importantly, various magnetic levels of high-performance NdFeB magnets, including 48–52 M, 45H, 50SH and 40-45UH, can be easily attained by modifying the amount of PrAl for DA sintered magnets and/or GBD with TbPrCu alloys. |
| abstractGer |
Magnetic-property modification and thermal stability improvement for high-performance NdFeB magnets by dual-alloy (DA) sintering with Pr85Al15 (PrAl) together with grain boundary diffusion (GBD) with Tb55Pr20Cu25 (TbPrCu) is demonstrated. The coercivity is increased from 14.9 to 16.4–18.0 kOe for the magnet DA sintering with 2–4 % PrAl. Pr and Al at grain boundary strengthens magnetic decoupling effect. In addition, a thin layer of (Nd, Pr)2Fe14B with higher magnetocrystalline anisotropy field (HA) is formed at grain surface. Both effects contribute to the coercivity enhancement for the magnets prepared by DA sintering with PrAl. Furthermore, remarkable coercivity enhancement, from 14.9 to 18.0 kOe to 22.7–27.1 kOe, with improved thermal stability is attained for the above magnets after GBD with Tb55Pr20Cu25 alloy. Besides, the increased Curie temperature of 2:14:1 phase indicates the entrance of Tb into 2:14:1 phase and helps to improve thermal stability. Most importantly, various magnetic levels of high-performance NdFeB magnets, including 48–52 M, 45H, 50SH and 40-45UH, can be easily attained by modifying the amount of PrAl for DA sintered magnets and/or GBD with TbPrCu alloys. |
| abstract_unstemmed |
Magnetic-property modification and thermal stability improvement for high-performance NdFeB magnets by dual-alloy (DA) sintering with Pr85Al15 (PrAl) together with grain boundary diffusion (GBD) with Tb55Pr20Cu25 (TbPrCu) is demonstrated. The coercivity is increased from 14.9 to 16.4–18.0 kOe for the magnet DA sintering with 2–4 % PrAl. Pr and Al at grain boundary strengthens magnetic decoupling effect. In addition, a thin layer of (Nd, Pr)2Fe14B with higher magnetocrystalline anisotropy field (HA) is formed at grain surface. Both effects contribute to the coercivity enhancement for the magnets prepared by DA sintering with PrAl. Furthermore, remarkable coercivity enhancement, from 14.9 to 18.0 kOe to 22.7–27.1 kOe, with improved thermal stability is attained for the above magnets after GBD with Tb55Pr20Cu25 alloy. Besides, the increased Curie temperature of 2:14:1 phase indicates the entrance of Tb into 2:14:1 phase and helps to improve thermal stability. Most importantly, various magnetic levels of high-performance NdFeB magnets, including 48–52 M, 45H, 50SH and 40-45UH, can be easily attained by modifying the amount of PrAl for DA sintered magnets and/or GBD with TbPrCu alloys. |
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Enhancement of coercivity and thermal stability of Pr |
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| score |
7.4004126 |