Hot-pressed Mn-Zn-Ni and Mn-Zn-Co ferrites for magnetic recording heads
Ni/sup 2+/ and Co/sup 2+/ substituted Mn-Zn ferrites have been developed as high-density magnetic recording materials by hot pressing using optimum sintering parameters. Ferrite series of the composition Mn/sub 0.6/Zn/sub 0.4-x/Ni/sub x/Fe/sub 2/O/sub 4/ and Mn/sub 0.6/Zn/sub 0.4-y/Co/sub y/Fe/sub 2...
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| Veröffentlicht in: | IEEE transactions on magnetics 1992-01, Vol.28 (1), p.21-26 |
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| container_title | IEEE transactions on magnetics |
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| creator | Babbar, V.K. Puri, R.K. |
| description | Ni/sup 2+/ and Co/sup 2+/ substituted Mn-Zn ferrites have been developed as high-density magnetic recording materials by hot pressing using optimum sintering parameters. Ferrite series of the composition Mn/sub 0.6/Zn/sub 0.4-x/Ni/sub x/Fe/sub 2/O/sub 4/ and Mn/sub 0.6/Zn/sub 0.4-y/Co/sub y/Fe/sub 2/O/sub 4/ were prepared by the hot-pressing technique wherein x and y varied from 0.0 to 0.4 in steps of 0.05. It yielded ferrites with improved magnetic properties having higher hardness (>or=650 Vickers units), low porosity ( |
| doi_str_mv | 10.1109/20.119812 |
| format | Article |
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Ferrite series of the composition Mn/sub 0.6/Zn/sub 0.4-x/Ni/sub x/Fe/sub 2/O/sub 4/ and Mn/sub 0.6/Zn/sub 0.4-y/Co/sub y/Fe/sub 2/O/sub 4/ were prepared by the hot-pressing technique wherein x and y varied from 0.0 to 0.4 in steps of 0.05. It yielded ferrites with improved magnetic properties having higher hardness (>or=650 Vickers units), low porosity (<0.1%), and small grain size ( approximately=10 mu m). The initial permeability increased, whereas the coercive field decreased for an Ni/sup 2+/ concentration x or a Co/sup 2+/ concentration y equal to 0.05. Maximum values of saturation magnetization equal to 4850 and 5250 G were obtained for x and y equal to 0.225 and 0.275, respectively. The Curie temperature increased appreciably, whereas the DC resistivity decreased for a larger substitution of Ni/sup 2+/ and Co/sup 2+/ ions.< ></description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/20.119812</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Exact sciences and technology ; Ferrites ; Grain size ; Iron ; Magnetic materials ; Magnetic properties ; Magnetic properties and materials ; Magnetic recording ; Permeability ; Physics ; Pressing ; Saturation magnetization ; Studies of specific magnetic materials ; Zinc</subject><ispartof>IEEE transactions on magnetics, 1992-01, Vol.28 (1), p.21-26</ispartof><rights>1992 INIST-CNRS</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-693e0ac78f5fda08760136206bf97bfbd2e923934cc87e57a760dc8285f4a6fb3</citedby><cites>FETCH-LOGICAL-c337t-693e0ac78f5fda08760136206bf97bfbd2e923934cc87e57a760dc8285f4a6fb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/119812$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,796,4049,4050,23929,23930,25139,27923,27924,54757</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/119812$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=5505041$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Babbar, V.K.</creatorcontrib><creatorcontrib>Puri, R.K.</creatorcontrib><title>Hot-pressed Mn-Zn-Ni and Mn-Zn-Co ferrites for magnetic recording heads</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description>Ni/sup 2+/ and Co/sup 2+/ substituted Mn-Zn ferrites have been developed as high-density magnetic recording materials by hot pressing using optimum sintering parameters. Ferrite series of the composition Mn/sub 0.6/Zn/sub 0.4-x/Ni/sub x/Fe/sub 2/O/sub 4/ and Mn/sub 0.6/Zn/sub 0.4-y/Co/sub y/Fe/sub 2/O/sub 4/ were prepared by the hot-pressing technique wherein x and y varied from 0.0 to 0.4 in steps of 0.05. It yielded ferrites with improved magnetic properties having higher hardness (>or=650 Vickers units), low porosity (<0.1%), and small grain size ( approximately=10 mu m). The initial permeability increased, whereas the coercive field decreased for an Ni/sup 2+/ concentration x or a Co/sup 2+/ concentration y equal to 0.05. Maximum values of saturation magnetization equal to 4850 and 5250 G were obtained for x and y equal to 0.225 and 0.275, respectively. The Curie temperature increased appreciably, whereas the DC resistivity decreased for a larger substitution of Ni/sup 2+/ and Co/sup 2+/ ions.< ></description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Exact sciences and technology</subject><subject>Ferrites</subject><subject>Grain size</subject><subject>Iron</subject><subject>Magnetic materials</subject><subject>Magnetic properties</subject><subject>Magnetic properties and materials</subject><subject>Magnetic recording</subject><subject>Permeability</subject><subject>Physics</subject><subject>Pressing</subject><subject>Saturation magnetization</subject><subject>Studies of specific magnetic materials</subject><subject>Zinc</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><recordid>eNqNkDtPwzAUhS0EEqUwsDJlQEgMhutn7BFV0CLxWGBhiRznugS1SbHTgX9PohRYmY6O9J1vOIScMrhiDOw1H9IaxvfIhFnJKIC2-2QCwAy1UstDcpTSR1-lYjAh80Xb0U3ElLDKHhv61tCnOnPNT5m1WcAY6w5TFtqYrd2ywa72WUTfxqpultk7uiodk4PgVglPdjklr3e3L7MFfXie389uHqgXIu-otgLB-dwEFSoHJtfAhOagy2DzMpQVR8uFFdJ7k6PKXQ9U3nCjgnQ6lGJKLkbvJrafW0xdsa6Tx9XKNdhuU8GNAQZS_wMUQoEQPXg5gj62KUUMxSbWaxe_CgbF8GnBhxw-7dnzndQl71YhusbX6XegFCiQrMfORqxGxD_d6PgGxxB72A</recordid><startdate>199201</startdate><enddate>199201</enddate><creator>Babbar, V.K.</creator><creator>Puri, R.K.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><scope>7QQ</scope><scope>JG9</scope></search><sort><creationdate>199201</creationdate><title>Hot-pressed Mn-Zn-Ni and Mn-Zn-Co ferrites for magnetic recording heads</title><author>Babbar, V.K. ; Puri, R.K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-693e0ac78f5fda08760136206bf97bfbd2e923934cc87e57a760dc8285f4a6fb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1992</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Exact sciences and technology</topic><topic>Ferrites</topic><topic>Grain size</topic><topic>Iron</topic><topic>Magnetic materials</topic><topic>Magnetic properties</topic><topic>Magnetic properties and materials</topic><topic>Magnetic recording</topic><topic>Permeability</topic><topic>Physics</topic><topic>Pressing</topic><topic>Saturation magnetization</topic><topic>Studies of specific magnetic materials</topic><topic>Zinc</topic><toplevel>online_resources</toplevel><creatorcontrib>Babbar, V.K.</creatorcontrib><creatorcontrib>Puri, R.K.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Ceramic Abstracts</collection><collection>Materials Research Database</collection><jtitle>IEEE transactions on magnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Babbar, V.K.</au><au>Puri, R.K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hot-pressed Mn-Zn-Ni and Mn-Zn-Co ferrites for magnetic recording heads</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>1992-01</date><risdate>1992</risdate><volume>28</volume><issue>1</issue><spage>21</spage><epage>26</epage><pages>21-26</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>Ni/sup 2+/ and Co/sup 2+/ substituted Mn-Zn ferrites have been developed as high-density magnetic recording materials by hot pressing using optimum sintering parameters. Ferrite series of the composition Mn/sub 0.6/Zn/sub 0.4-x/Ni/sub x/Fe/sub 2/O/sub 4/ and Mn/sub 0.6/Zn/sub 0.4-y/Co/sub y/Fe/sub 2/O/sub 4/ were prepared by the hot-pressing technique wherein x and y varied from 0.0 to 0.4 in steps of 0.05. It yielded ferrites with improved magnetic properties having higher hardness (>or=650 Vickers units), low porosity (<0.1%), and small grain size ( approximately=10 mu m). The initial permeability increased, whereas the coercive field decreased for an Ni/sup 2+/ concentration x or a Co/sup 2+/ concentration y equal to 0.05. Maximum values of saturation magnetization equal to 4850 and 5250 G were obtained for x and y equal to 0.225 and 0.275, respectively. The Curie temperature increased appreciably, whereas the DC resistivity decreased for a larger substitution of Ni/sup 2+/ and Co/sup 2+/ ions.< ></abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/20.119812</doi><tpages>6</tpages></addata></record> |
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| ispartof | IEEE transactions on magnetics, 1992-01, Vol.28 (1), p.21-26 |
| issn | 0018-9464 1941-0069 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Ferrites Grain size Iron Magnetic materials Magnetic properties Magnetic properties and materials Magnetic recording Permeability Physics Pressing Saturation magnetization Studies of specific magnetic materials Zinc |
| title | Hot-pressed Mn-Zn-Ni and Mn-Zn-Co ferrites for magnetic recording heads |
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