Microstructure of Nd2Fe17N3 Magnetic Powder Surface with Nano-α-Fe Phases Separated Surface Layer
We investigated the application of Nd 2 Fe 17 N 3 magnetic powder with planar magnetic anisotropy to magnetic field amplification materials at several tens of MHz. Consequently, we succeeded in developing a magnetic property with real permeability ~ 8 and imaginary permeability below 0.8 at 100 MHz...
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| Veröffentlicht in: | IEEE transactions on magnetics 2023-11, Vol.59 (11), p.1-1 |
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| container_title | IEEE transactions on magnetics |
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| creator | Abe, Satoshi Akamatsu, Jun Imaoka, Nobuyoshi |
| description | We investigated the application of Nd 2 Fe 17 N 3 magnetic powder with planar magnetic anisotropy to magnetic field amplification materials at several tens of MHz. Consequently, we succeeded in developing a magnetic property with real permeability ~ 8 and imaginary permeability below 0.8 at 100 MHz using a phosphoric acid coating and a simple heat treatment process in air. In this study, microstructural analysis conducted using transmission electron microscopy and X-ray diffraction revealed that the coating layer became thicker, and the Nd 2 Fe 17 N 3 surface was phase-separated into nano-sized α-Fe phases and Nd-rich phases, either oxide, oxynitride, or nitride. Additionally, the nano-sized α-Fe phases and the nano-sized Nd-rich phases were oriented over a wide area spanning several hundred nanometers. We concluded that these characteristic structures have led to improved properties. |
| doi_str_mv | 10.1109/TMAG.2023.3281897 |
| format | Article |
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Consequently, we succeeded in developing a magnetic property with real permeability ~ 8 and imaginary permeability below 0.8 at 100 MHz using a phosphoric acid coating and a simple heat treatment process in air. In this study, microstructural analysis conducted using transmission electron microscopy and X-ray diffraction revealed that the coating layer became thicker, and the Nd 2 Fe 17 N 3 surface was phase-separated into nano-sized α-Fe phases and Nd-rich phases, either oxide, oxynitride, or nitride. Additionally, the nano-sized α-Fe phases and the nano-sized Nd-rich phases were oriented over a wide area spanning several hundred nanometers. 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(IEEE) 2023</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0009-0009-1805-3331 ; 0000-0002-4589-4330 ; 0000-0003-4580-0135</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/10141649$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/10141649$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Abe, Satoshi</creatorcontrib><creatorcontrib>Akamatsu, Jun</creatorcontrib><creatorcontrib>Imaoka, Nobuyoshi</creatorcontrib><title>Microstructure of Nd2Fe17N3 Magnetic Powder Surface with Nano-α-Fe Phases Separated Surface Layer</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description>We investigated the application of Nd 2 Fe 17 N 3 magnetic powder with planar magnetic anisotropy to magnetic field amplification materials at several tens of MHz. Consequently, we succeeded in developing a magnetic property with real permeability ~ 8 and imaginary permeability below 0.8 at 100 MHz using a phosphoric acid coating and a simple heat treatment process in air. In this study, microstructural analysis conducted using transmission electron microscopy and X-ray diffraction revealed that the coating layer became thicker, and the Nd 2 Fe 17 N 3 surface was phase-separated into nano-sized α-Fe phases and Nd-rich phases, either oxide, oxynitride, or nitride. Additionally, the nano-sized α-Fe phases and the nano-sized Nd-rich phases were oriented over a wide area spanning several hundred nanometers. We concluded that these characteristic structures have led to improved properties.</description><subject>Alpha iron</subject><subject>Heat treatment</subject><subject>Iron</subject><subject>Magnetic anisotropy</subject><subject>Magnetic permeability</subject><subject>Magnetic properties</subject><subject>Magnetism</subject><subject>Microstructural analysis</subject><subject>Microstructure</subject><subject>Nd<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">2 Fe<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">17 N<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">3</subject><subject>Permeability</subject><subject>Phases</subject><subject>Phosphoric acid</subject><subject>Powders</subject><subject>Surface layers</subject><subject>Surface treatment</subject><subject>Transmission electron microscopy</subject><subject>X-ray scattering</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kMFKAzEQhoMoWKsPIHgIeE7NJNns5liKrUJbC63nJc1O7Bbt1myW0sfyRfpMBiqefr6fjxlmCLkHPgDg5mk1G04Gggs5kKKAwuQXpAdGAeNcm0vS4xwKZpRW1-SmbbcJVQa8R9az2oWmjaFzsQtIG0_nlRgj5HNJZ_Zjh7F2dNEcKgx02QVvHdJDHTd0bncNO_2wMdLFxrbY0iXubbARq39xao8YbsmVt58t3v1ln7yPn1ejFzZ9m7yOhlNWC64iq8TagwYtctTapCt4hsJ5m1mZ-gJAOSWd9z7XXioEntnKO-S5T5B5Jfvk8Tx3H5rvDttYbpsu7NLKUhQFZFwYXiTr4WzViFjuQ_1lw7GE9A_QyshfV1BgOw</recordid><startdate>20231101</startdate><enddate>20231101</enddate><creator>Abe, Satoshi</creator><creator>Akamatsu, Jun</creator><creator>Imaoka, Nobuyoshi</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>7SP</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0009-0009-1805-3331</orcidid><orcidid>https://orcid.org/0000-0002-4589-4330</orcidid><orcidid>https://orcid.org/0000-0003-4580-0135</orcidid></search><sort><creationdate>20231101</creationdate><title>Microstructure of Nd2Fe17N3 Magnetic Powder Surface with Nano-α-Fe Phases Separated Surface Layer</title><author>Abe, Satoshi ; Akamatsu, Jun ; Imaoka, Nobuyoshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i204t-d2bf161627e66932805e2cfa5a3f168114c43cfff76f34e105adfce07f4e15f43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Alpha iron</topic><topic>Heat treatment</topic><topic>Iron</topic><topic>Magnetic anisotropy</topic><topic>Magnetic permeability</topic><topic>Magnetic properties</topic><topic>Magnetism</topic><topic>Microstructural analysis</topic><topic>Microstructure</topic><topic>Nd<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">2 Fe<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">17 N<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">3</topic><topic>Permeability</topic><topic>Phases</topic><topic>Phosphoric acid</topic><topic>Powders</topic><topic>Surface layers</topic><topic>Surface treatment</topic><topic>Transmission electron microscopy</topic><topic>X-ray scattering</topic><toplevel>online_resources</toplevel><creatorcontrib>Abe, Satoshi</creatorcontrib><creatorcontrib>Akamatsu, Jun</creatorcontrib><creatorcontrib>Imaoka, Nobuyoshi</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on magnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Abe, Satoshi</au><au>Akamatsu, Jun</au><au>Imaoka, Nobuyoshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructure of Nd2Fe17N3 Magnetic Powder Surface with Nano-α-Fe Phases Separated Surface Layer</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>2023-11-01</date><risdate>2023</risdate><volume>59</volume><issue>11</issue><spage>1</spage><epage>1</epage><pages>1-1</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>We investigated the application of Nd 2 Fe 17 N 3 magnetic powder with planar magnetic anisotropy to magnetic field amplification materials at several tens of MHz. Consequently, we succeeded in developing a magnetic property with real permeability ~ 8 and imaginary permeability below 0.8 at 100 MHz using a phosphoric acid coating and a simple heat treatment process in air. In this study, microstructural analysis conducted using transmission electron microscopy and X-ray diffraction revealed that the coating layer became thicker, and the Nd 2 Fe 17 N 3 surface was phase-separated into nano-sized α-Fe phases and Nd-rich phases, either oxide, oxynitride, or nitride. Additionally, the nano-sized α-Fe phases and the nano-sized Nd-rich phases were oriented over a wide area spanning several hundred nanometers. We concluded that these characteristic structures have led to improved properties.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TMAG.2023.3281897</doi><tpages>1</tpages><orcidid>https://orcid.org/0009-0009-1805-3331</orcidid><orcidid>https://orcid.org/0000-0002-4589-4330</orcidid><orcidid>https://orcid.org/0000-0003-4580-0135</orcidid></addata></record> |
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| subjects | Alpha iron Heat treatment Iron Magnetic anisotropy Magnetic permeability Magnetic properties Magnetism Microstructural analysis Microstructure Nd<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">2 Fe<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">17 N<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">3 Permeability Phases Phosphoric acid Powders Surface layers Surface treatment Transmission electron microscopy X-ray scattering |
| title | Microstructure of Nd2Fe17N3 Magnetic Powder Surface with Nano-α-Fe Phases Separated Surface Layer |
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