Exchange-coupling interaction and effective anisotropy in nanocomposite permanent materials
Taking Nd2Fe14B/α-Fe as example, the exchange-coupling interactions between magnetically soft and hard grains in nanocomposite permanent materials and their effects on the effective anisotropy of materials were investigated. The calculation results expressed that the exchangecoupling interactions ar...
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| Veröffentlicht in: | Chinese science bulletin 2002-07, Vol.47 (14), p.1166-1169 |
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| container_title | Chinese science bulletin |
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| creator | Gao, Ruwei Feng, Weicun Chen, Wei Wang, Biao Han, Guangbing Zhang, Peng |
| description | Taking Nd2Fe14B/α-Fe as example, the exchange-coupling interactions between magnetically soft and hard grains in nanocomposite permanent materials and their effects on the effective anisotropy of materials were investigated. The calculation results expressed that the exchangecoupling interactions are enhanced with the reduction of grain size, and the effective anisotropy of materials decreases with the reduction of grain size and the increase of magnetically soft phase component. The remanence and the effective anisotropy of materials possess the opposite variation trend with the change of grain size and phase ratio. The mean grain size should be in the range of 10–15 nm and the ratio of soft phase should be less than 50% for getting the magnet with high energy product. |
| doi_str_mv | 10.1007/BF02907601 |
| format | Article |
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The calculation results expressed that the exchangecoupling interactions are enhanced with the reduction of grain size, and the effective anisotropy of materials decreases with the reduction of grain size and the increase of magnetically soft phase component. The remanence and the effective anisotropy of materials possess the opposite variation trend with the change of grain size and phase ratio. 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The calculation results expressed that the exchangecoupling interactions are enhanced with the reduction of grain size, and the effective anisotropy of materials decreases with the reduction of grain size and the increase of magnetically soft phase component. The remanence and the effective anisotropy of materials possess the opposite variation trend with the change of grain size and phase ratio. The mean grain size should be in the range of 10–15 nm and the ratio of soft phase should be less than 50% for getting the magnet with high energy product.</description><subject>Alpha iron</subject><subject>Anisotropy</subject><subject>Coupling</subject><subject>Grain size</subject><subject>Nanocomposites</subject><subject>Particle size</subject><subject>Phase ratio</subject><subject>Reduction</subject><subject>Remanence</subject><issn>1001-6538</issn><issn>2095-9273</issn><issn>1861-9541</issn><issn>2095-9281</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNpFkEFLAzEQhYMoWKsXf8GCB0FYnSSbzeaopVWh4KU3D0s2O6lb22RNttr-eyMVepk3D76ZYR4h1xTuKYB8eJoBUyBLoCdkRKuS5koU9DT1ADQvBa_OyUWMq-Q4lWxE3qc786HdEnPjt_26c8uscwMGbYbOu0y7NkNrMblvTK6Lfgi-3ycoc9p54ze9j92AWY9hox26IdvoNN_pdbwkZzYJXv3rmCxm08XkJZ-_Pb9OHue5YYwOuWqFxoZKYS0HUXAoKi6NkkqXHI0wvEEUrTWcmyYVKRS0qVLd0qICxcfk9rD2RzubXqlXfhtcOlh_7oamRgbAaAEgEnlzIPvgv7YYhyPKZFWqomASEnV3oEzwMQa0dR-6jQ77mkL9l3J9TJn_AqpEb3E</recordid><startdate>20020701</startdate><enddate>20020701</enddate><creator>Gao, Ruwei</creator><creator>Feng, Weicun</creator><creator>Chen, Wei</creator><creator>Wang, Biao</creator><creator>Han, Guangbing</creator><creator>Zhang, Peng</creator><general>Springer Nature B.V</general><general>School of Physics & Microelectronics,Shandong University,Ji'nan 250100,China</general><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20020701</creationdate><title>Exchange-coupling interaction and effective anisotropy in nanocomposite permanent materials</title><author>Gao, Ruwei ; Feng, Weicun ; Chen, Wei ; Wang, Biao ; Han, Guangbing ; Zhang, Peng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c221t-9d5aeb175ff3054304837c979a63ec5c3bee5dfc33cbc337590d3751ad148093</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Alpha iron</topic><topic>Anisotropy</topic><topic>Coupling</topic><topic>Grain size</topic><topic>Nanocomposites</topic><topic>Particle size</topic><topic>Phase ratio</topic><topic>Reduction</topic><topic>Remanence</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gao, Ruwei</creatorcontrib><creatorcontrib>Feng, Weicun</creatorcontrib><creatorcontrib>Chen, Wei</creatorcontrib><creatorcontrib>Wang, Biao</creatorcontrib><creatorcontrib>Han, Guangbing</creatorcontrib><creatorcontrib>Zhang, Peng</creatorcontrib><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Chinese science bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gao, Ruwei</au><au>Feng, Weicun</au><au>Chen, Wei</au><au>Wang, Biao</au><au>Han, Guangbing</au><au>Zhang, Peng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Exchange-coupling interaction and effective anisotropy in nanocomposite permanent materials</atitle><jtitle>Chinese science bulletin</jtitle><date>2002-07-01</date><risdate>2002</risdate><volume>47</volume><issue>14</issue><spage>1166</spage><epage>1169</epage><pages>1166-1169</pages><issn>1001-6538</issn><issn>2095-9273</issn><eissn>1861-9541</eissn><eissn>2095-9281</eissn><abstract>Taking Nd2Fe14B/α-Fe as example, the exchange-coupling interactions between magnetically soft and hard grains in nanocomposite permanent materials and their effects on the effective anisotropy of materials were investigated. The calculation results expressed that the exchangecoupling interactions are enhanced with the reduction of grain size, and the effective anisotropy of materials decreases with the reduction of grain size and the increase of magnetically soft phase component. The remanence and the effective anisotropy of materials possess the opposite variation trend with the change of grain size and phase ratio. The mean grain size should be in the range of 10–15 nm and the ratio of soft phase should be less than 50% for getting the magnet with high energy product.</abstract><cop>Beijing</cop><pub>Springer Nature B.V</pub><doi>10.1007/BF02907601</doi><tpages>4</tpages></addata></record> |
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| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Alpha iron Anisotropy Coupling Grain size Nanocomposites Particle size Phase ratio Reduction Remanence |
| title | Exchange-coupling interaction and effective anisotropy in nanocomposite permanent materials |
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