Permanent magnetic materials based on Nd2Fe14C prepared by melt spinning
Permanent magnetic materials containing the intermetallic compound Nd2Fe14C were obtained by annealing melt-spun flakes. As quenched flakes with compositions close to the stoichiometric composition consist of α-Fe, Nd2Fe17 with some dissolved carbon, and an amorphous phase. At approximately 700 °C N...
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| Veröffentlicht in: | Journal of applied physics 1989-01, Vol.65 (2), p.704-709 |
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| container_title | Journal of applied physics |
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| creator | COEHOORN, R DUCHATEAU, J. P. W. B DENISSEN, C. J. M |
| description | Permanent magnetic materials containing the intermetallic compound Nd2Fe14C were obtained by annealing melt-spun flakes. As quenched flakes with compositions close to the stoichiometric composition consist of α-Fe, Nd2Fe17 with some dissolved carbon, and an amorphous phase. At approximately 700 °C Nd2Fe14C is formed in a solid-state reaction. The amount of Nd2Fe14C formed, the presence of secondary phases, and the magnetic properties depend strongly on the composition. Samples with the composition Nd13.5Fe79.6C6.9 contain only a small fraction of secondary phases. The remanence and intrinsic coercive field are 0.72 T and 800 kA/m, respectively. The kinetics of the phase transformation, as well as the thermodynamics of the phase equilibria in the relevant part of the Nd-Fe-C system are discussed. |
| doi_str_mv | 10.1063/1.343107 |
| format | Article |
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P. W. B ; DENISSEN, C. J. M</creator><creatorcontrib>COEHOORN, R ; DUCHATEAU, J. P. W. B ; DENISSEN, C. J. M</creatorcontrib><description>Permanent magnetic materials containing the intermetallic compound Nd2Fe14C were obtained by annealing melt-spun flakes. As quenched flakes with compositions close to the stoichiometric composition consist of α-Fe, Nd2Fe17 with some dissolved carbon, and an amorphous phase. At approximately 700 °C Nd2Fe14C is formed in a solid-state reaction. The amount of Nd2Fe14C formed, the presence of secondary phases, and the magnetic properties depend strongly on the composition. Samples with the composition Nd13.5Fe79.6C6.9 contain only a small fraction of secondary phases. The remanence and intrinsic coercive field are 0.72 T and 800 kA/m, respectively. The kinetics of the phase transformation, as well as the thermodynamics of the phase equilibria in the relevant part of the Nd-Fe-C system are discussed.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.343107</identifier><identifier>CODEN: JAPIAU</identifier><language>eng</language><publisher>Woodbury, NY: American Institute of Physics</publisher><subject>Applied sciences ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Exact sciences and technology ; Magnetic properties and materials ; Metals. 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J. M</creatorcontrib><title>Permanent magnetic materials based on Nd2Fe14C prepared by melt spinning</title><title>Journal of applied physics</title><description>Permanent magnetic materials containing the intermetallic compound Nd2Fe14C were obtained by annealing melt-spun flakes. As quenched flakes with compositions close to the stoichiometric composition consist of α-Fe, Nd2Fe17 with some dissolved carbon, and an amorphous phase. At approximately 700 °C Nd2Fe14C is formed in a solid-state reaction. The amount of Nd2Fe14C formed, the presence of secondary phases, and the magnetic properties depend strongly on the composition. Samples with the composition Nd13.5Fe79.6C6.9 contain only a small fraction of secondary phases. The remanence and intrinsic coercive field are 0.72 T and 800 kA/m, respectively. The kinetics of the phase transformation, as well as the thermodynamics of the phase equilibria in the relevant part of the Nd-Fe-C system are discussed.</description><subject>Applied sciences</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Exact sciences and technology</subject><subject>Magnetic properties and materials</subject><subject>Metals. 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M</creator><general>American Institute of Physics</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19890115</creationdate><title>Permanent magnetic materials based on Nd2Fe14C prepared by melt spinning</title><author>COEHOORN, R ; DUCHATEAU, J. P. W. B ; DENISSEN, C. J. M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c253t-bd9f63b84e1f4d4e502a1f2e04c1a4de3a792a984fa80cfbe57fa44fd424cba53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>Applied sciences</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Exact sciences and technology</topic><topic>Magnetic properties and materials</topic><topic>Metals. Metallurgy</topic><topic>Other topics in magnetic properties and materials</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>COEHOORN, R</creatorcontrib><creatorcontrib>DUCHATEAU, J. P. W. B</creatorcontrib><creatorcontrib>DENISSEN, C. J. M</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>COEHOORN, R</au><au>DUCHATEAU, J. P. W. B</au><au>DENISSEN, C. J. M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Permanent magnetic materials based on Nd2Fe14C prepared by melt spinning</atitle><jtitle>Journal of applied physics</jtitle><date>1989-01-15</date><risdate>1989</risdate><volume>65</volume><issue>2</issue><spage>704</spage><epage>709</epage><pages>704-709</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><coden>JAPIAU</coden><abstract>Permanent magnetic materials containing the intermetallic compound Nd2Fe14C were obtained by annealing melt-spun flakes. As quenched flakes with compositions close to the stoichiometric composition consist of α-Fe, Nd2Fe17 with some dissolved carbon, and an amorphous phase. At approximately 700 °C Nd2Fe14C is formed in a solid-state reaction. The amount of Nd2Fe14C formed, the presence of secondary phases, and the magnetic properties depend strongly on the composition. Samples with the composition Nd13.5Fe79.6C6.9 contain only a small fraction of secondary phases. The remanence and intrinsic coercive field are 0.72 T and 800 kA/m, respectively. The kinetics of the phase transformation, as well as the thermodynamics of the phase equilibria in the relevant part of the Nd-Fe-C system are discussed.</abstract><cop>Woodbury, NY</cop><pub>American Institute of Physics</pub><doi>10.1063/1.343107</doi><tpages>6</tpages></addata></record> |
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| ispartof | Journal of applied physics, 1989-01, Vol.65 (2), p.704-709 |
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| language | eng |
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| source | AIP Digital Archive |
| subjects | Applied sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Magnetic properties and materials Metals. Metallurgy Other topics in magnetic properties and materials Physics |
| title | Permanent magnetic materials based on Nd2Fe14C prepared by melt spinning |
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