Effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnet
We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1....
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Sasaki, T.T. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015transfer abstract |
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| Umfang: |
9 |
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| Übergeordnetes Werk: |
Enthalten in: Nonlinear relationship between monetary policy and stock returns: Evidence from the U.S. - Chauvet, Marcelle ELSEVIER, 2022, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:84 ; year:2015 ; day:1 ; month:02 ; pages:506-514 ; extent:9 |
| Links: |
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| DOI / URN: |
10.1016/j.actamat.2014.10.047 |
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ELV023889896 |
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| 520 | |a We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. | ||
| 520 | |a We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. | ||
| 650 | 7 | |a Nd–Fe–B |2 Elsevier | |
| 650 | 7 | |a Coercivity |2 Elsevier | |
| 650 | 7 | |a Sintered magnet |2 Elsevier | |
| 650 | 7 | |a Microstructure |2 Elsevier | |
| 700 | 1 | |a Ohkubo, T. |4 oth | |
| 700 | 1 | |a Une, Y. |4 oth | |
| 700 | 1 | |a Kubo, H. |4 oth | |
| 700 | 1 | |a Sagawa, M. |4 oth | |
| 700 | 1 | |a Hono, K. |4 oth | |
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10.1016/j.actamat.2014.10.047 doi GBV00000000000202A.pica (DE-627)ELV023889896 (ELSEVIER)S1359-6454(14)00811-8 DE-627 ger DE-627 rakwb eng 670 670 DE-600 330 VZ Sasaki, T.T. verfasserin aut Effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnet 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. Nd–Fe–B Elsevier Coercivity Elsevier Sintered magnet Elsevier Microstructure Elsevier Ohkubo, T. oth Une, Y. oth Kubo, H. oth Sagawa, M. oth Hono, K. oth Enthalten in Elsevier Science Chauvet, Marcelle ELSEVIER Nonlinear relationship between monetary policy and stock returns: Evidence from the U.S. 2022 Amsterdam [u.a.] (DE-627)ELV009239057 volume:84 year:2015 day:1 month:02 pages:506-514 extent:9 https://doi.org/10.1016/j.actamat.2014.10.047 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U AR 84 2015 1 0201 506-514 9 045F 670 |
| spelling |
10.1016/j.actamat.2014.10.047 doi GBV00000000000202A.pica (DE-627)ELV023889896 (ELSEVIER)S1359-6454(14)00811-8 DE-627 ger DE-627 rakwb eng 670 670 DE-600 330 VZ Sasaki, T.T. verfasserin aut Effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnet 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. Nd–Fe–B Elsevier Coercivity Elsevier Sintered magnet Elsevier Microstructure Elsevier Ohkubo, T. oth Une, Y. oth Kubo, H. oth Sagawa, M. oth Hono, K. oth Enthalten in Elsevier Science Chauvet, Marcelle ELSEVIER Nonlinear relationship between monetary policy and stock returns: Evidence from the U.S. 2022 Amsterdam [u.a.] (DE-627)ELV009239057 volume:84 year:2015 day:1 month:02 pages:506-514 extent:9 https://doi.org/10.1016/j.actamat.2014.10.047 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U AR 84 2015 1 0201 506-514 9 045F 670 |
| allfields_unstemmed |
10.1016/j.actamat.2014.10.047 doi GBV00000000000202A.pica (DE-627)ELV023889896 (ELSEVIER)S1359-6454(14)00811-8 DE-627 ger DE-627 rakwb eng 670 670 DE-600 330 VZ Sasaki, T.T. verfasserin aut Effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnet 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. Nd–Fe–B Elsevier Coercivity Elsevier Sintered magnet Elsevier Microstructure Elsevier Ohkubo, T. oth Une, Y. oth Kubo, H. oth Sagawa, M. oth Hono, K. oth Enthalten in Elsevier Science Chauvet, Marcelle ELSEVIER Nonlinear relationship between monetary policy and stock returns: Evidence from the U.S. 2022 Amsterdam [u.a.] (DE-627)ELV009239057 volume:84 year:2015 day:1 month:02 pages:506-514 extent:9 https://doi.org/10.1016/j.actamat.2014.10.047 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U AR 84 2015 1 0201 506-514 9 045F 670 |
| allfieldsGer |
10.1016/j.actamat.2014.10.047 doi GBV00000000000202A.pica (DE-627)ELV023889896 (ELSEVIER)S1359-6454(14)00811-8 DE-627 ger DE-627 rakwb eng 670 670 DE-600 330 VZ Sasaki, T.T. verfasserin aut Effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnet 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. Nd–Fe–B Elsevier Coercivity Elsevier Sintered magnet Elsevier Microstructure Elsevier Ohkubo, T. oth Une, Y. oth Kubo, H. oth Sagawa, M. oth Hono, K. oth Enthalten in Elsevier Science Chauvet, Marcelle ELSEVIER Nonlinear relationship between monetary policy and stock returns: Evidence from the U.S. 2022 Amsterdam [u.a.] (DE-627)ELV009239057 volume:84 year:2015 day:1 month:02 pages:506-514 extent:9 https://doi.org/10.1016/j.actamat.2014.10.047 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U AR 84 2015 1 0201 506-514 9 045F 670 |
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10.1016/j.actamat.2014.10.047 doi GBV00000000000202A.pica (DE-627)ELV023889896 (ELSEVIER)S1359-6454(14)00811-8 DE-627 ger DE-627 rakwb eng 670 670 DE-600 330 VZ Sasaki, T.T. verfasserin aut Effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnet 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. Nd–Fe–B Elsevier Coercivity Elsevier Sintered magnet Elsevier Microstructure Elsevier Ohkubo, T. oth Une, Y. oth Kubo, H. oth Sagawa, M. oth Hono, K. oth Enthalten in Elsevier Science Chauvet, Marcelle ELSEVIER Nonlinear relationship between monetary policy and stock returns: Evidence from the U.S. 2022 Amsterdam [u.a.] (DE-627)ELV009239057 volume:84 year:2015 day:1 month:02 pages:506-514 extent:9 https://doi.org/10.1016/j.actamat.2014.10.047 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U AR 84 2015 1 0201 506-514 9 045F 670 |
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English |
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Enthalten in Nonlinear relationship between monetary policy and stock returns: Evidence from the U.S. Amsterdam [u.a.] volume:84 year:2015 day:1 month:02 pages:506-514 extent:9 |
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Enthalten in Nonlinear relationship between monetary policy and stock returns: Evidence from the U.S. Amsterdam [u.a.] volume:84 year:2015 day:1 month:02 pages:506-514 extent:9 |
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The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. 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Effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnet |
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We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. |
| abstractGer |
We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. |
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We have investigated the effect of carbon on the coercivity and microstructure in fine-grained Nd–Fe–B sintered magnets fabricated by the pressless sintering method. The coercivity of the sample with the carbon content of 730ppm (low-C) was 1.59T while that of the sample with 1500ppm (high-C) was 1.44T in the as-sintered state. The low-C sample exhibited a larger coercivity increase by a post-sinter annealing, reaching the highest coercivity of 1.85T, while the high-C sample reached a lower coercivity of 1.54T. Detailed microstructure investigations using scanning electron microscopy, scanning transmission electron microscopy and atom probe tomography revealed that the high carbon content resulted in the formation of a Nd-carbide with a tetragonal structure and the reduction in the volume fraction of an α-Nd phase at triple junctions. This in turn decreased the Nd+Pr concentration in thin Nd-rich grain boundary phase, resulting in the lower coercivity. |
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