Fe-Nd-B magnets via the hot extrusion of amorphous powders
This article describes a rapid solidification melt spinning technique has been developed to produce amorphous powders of Fe-Nd-B alloys modified with hafnium diboride. The amorphous powders are consolidated by the hot extrusion technique into bulk magnets of various cross sections. Consolidated magn...
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| Veröffentlicht in: | JOM (1989) 1989-09, Vol.41 (9), p.42-45 |
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| container_title | JOM (1989) |
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| creator | Yang, Choong Jin Ray, Ranjan |
| description | This article describes a rapid solidification melt spinning technique has been developed to produce amorphous powders of Fe-Nd-B alloys modified with hafnium diboride. The amorphous powders are consolidated by the hot extrusion technique into bulk magnets of various cross sections. Consolidated magnets show ultrafine grain structure stabilized by ultrafine submicron hafnium diboride particles. The extruded magnets develop strong texture-induced magnetic anisotropy which leads to attractive energy product values of up to 16 MGOe. Significant improvement in coercivity is also achieved due to ultrafine grain structure of the extruded magnets. |
| doi_str_mv | 10.1007/BF03220332 |
| format | Article |
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The amorphous powders are consolidated by the hot extrusion technique into bulk magnets of various cross sections. Consolidated magnets show ultrafine grain structure stabilized by ultrafine submicron hafnium diboride particles. The extruded magnets develop strong texture-induced magnetic anisotropy which leads to attractive energy product values of up to 16 MGOe. Significant improvement in coercivity is also achieved due to ultrafine grain structure of the extruded magnets.</description><identifier>ISSN: 1047-4838</identifier><identifier>ISSN: 0148-6608</identifier><identifier>EISSN: 1543-1851</identifier><identifier>DOI: 10.1007/BF03220332</identifier><language>eng</language><publisher>United States</publisher><subject>360101 - Metals & Alloys- Preparation & Fabrication ; 360104 - Metals & Alloys- Physical Properties ; 420201 - Engineering- Cryogenic Equipment & Devices ; ALLOYS ; AMORPHOUS STATE ; ANISOTROPY ; BORON ALLOYS ; CHEMICAL COMPOSITION ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; EXTRUSION ; FABRICATION ; HAFNIUM ADDITIONS ; HAFNIUM ALLOYS ; IRON ALLOYS ; MAGNETIC PROPERTIES ; MAGNETIC SUSCEPTIBILITY ; MAGNETS ; MATERIALS SCIENCE ; MATERIALS WORKING ; METALLURGY ; MODIFICATIONS ; NEODYMIUM ALLOYS ; PHASE TRANSFORMATIONS ; PHYSICAL PROPERTIES ; POWDER METALLURGY ; POWDERS ; RARE EARTH ALLOYS ; SOLIDIFICATION</subject><ispartof>JOM (1989), 1989-09, Vol.41 (9), p.42-45</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c353t-4b73c074906aaf7f82993b95ee5eb2a9f0f8dbc12124da4cbd55c5c284a992fb3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/5572640$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Yang, Choong Jin</creatorcontrib><creatorcontrib>Ray, Ranjan</creatorcontrib><title>Fe-Nd-B magnets via the hot extrusion of amorphous powders</title><title>JOM (1989)</title><description>This article describes a rapid solidification melt spinning technique has been developed to produce amorphous powders of Fe-Nd-B alloys modified with hafnium diboride. The amorphous powders are consolidated by the hot extrusion technique into bulk magnets of various cross sections. Consolidated magnets show ultrafine grain structure stabilized by ultrafine submicron hafnium diboride particles. The extruded magnets develop strong texture-induced magnetic anisotropy which leads to attractive energy product values of up to 16 MGOe. Significant improvement in coercivity is also achieved due to ultrafine grain structure of the extruded magnets.</description><subject>360101 - Metals & Alloys- Preparation & Fabrication</subject><subject>360104 - Metals & Alloys- Physical Properties</subject><subject>420201 - Engineering- Cryogenic Equipment & Devices</subject><subject>ALLOYS</subject><subject>AMORPHOUS STATE</subject><subject>ANISOTROPY</subject><subject>BORON ALLOYS</subject><subject>CHEMICAL COMPOSITION</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>EXTRUSION</subject><subject>FABRICATION</subject><subject>HAFNIUM ADDITIONS</subject><subject>HAFNIUM ALLOYS</subject><subject>IRON ALLOYS</subject><subject>MAGNETIC PROPERTIES</subject><subject>MAGNETIC SUSCEPTIBILITY</subject><subject>MAGNETS</subject><subject>MATERIALS SCIENCE</subject><subject>MATERIALS WORKING</subject><subject>METALLURGY</subject><subject>MODIFICATIONS</subject><subject>NEODYMIUM ALLOYS</subject><subject>PHASE TRANSFORMATIONS</subject><subject>PHYSICAL PROPERTIES</subject><subject>POWDER METALLURGY</subject><subject>POWDERS</subject><subject>RARE EARTH ALLOYS</subject><subject>SOLIDIFICATION</subject><issn>1047-4838</issn><issn>0148-6608</issn><issn>1543-1851</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><recordid>eNpFkEtLAzEYRYMoWKsbf0FwKUTz7Ezc2eKoUHSj65BkvjgjdjIkqY9_75QKru5dHO6Fg9A5o1eM0up62VDBORWCH6AZU1IQVit2OHUqKyJrUR-jk5zf6QRLzWbopgHy1JIl3ti3AUrGn73FpQPcxYLhu6Rt7uOAY8B2E9PYxW3GY_xqIeVTdBTsR4azv5yj1-buZfVA1s_3j6vbNfFCiUKkq4TfvdGFtaEKNddaOK0AFDhudaChbp1nnHHZWuldq5RXntfSas2DE3N0sd-NufQm-76A73wcBvDFKFXxhaQTdLmHfIo5JwhmTP3Gph_DqNmpMf9qxC_QQVTh</recordid><startdate>198909</startdate><enddate>198909</enddate><creator>Yang, Choong Jin</creator><creator>Ray, Ranjan</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>198909</creationdate><title>Fe-Nd-B magnets via the hot extrusion of amorphous powders</title><author>Yang, Choong Jin ; Ray, Ranjan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c353t-4b73c074906aaf7f82993b95ee5eb2a9f0f8dbc12124da4cbd55c5c284a992fb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>360101 - Metals & Alloys- Preparation & Fabrication</topic><topic>360104 - Metals & Alloys- Physical Properties</topic><topic>420201 - Engineering- Cryogenic Equipment & Devices</topic><topic>ALLOYS</topic><topic>AMORPHOUS STATE</topic><topic>ANISOTROPY</topic><topic>BORON ALLOYS</topic><topic>CHEMICAL COMPOSITION</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>EXTRUSION</topic><topic>FABRICATION</topic><topic>HAFNIUM ADDITIONS</topic><topic>HAFNIUM ALLOYS</topic><topic>IRON ALLOYS</topic><topic>MAGNETIC PROPERTIES</topic><topic>MAGNETIC SUSCEPTIBILITY</topic><topic>MAGNETS</topic><topic>MATERIALS SCIENCE</topic><topic>MATERIALS WORKING</topic><topic>METALLURGY</topic><topic>MODIFICATIONS</topic><topic>NEODYMIUM ALLOYS</topic><topic>PHASE TRANSFORMATIONS</topic><topic>PHYSICAL PROPERTIES</topic><topic>POWDER METALLURGY</topic><topic>POWDERS</topic><topic>RARE EARTH ALLOYS</topic><topic>SOLIDIFICATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Choong Jin</creatorcontrib><creatorcontrib>Ray, Ranjan</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>JOM (1989)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Choong Jin</au><au>Ray, Ranjan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fe-Nd-B magnets via the hot extrusion of amorphous powders</atitle><jtitle>JOM (1989)</jtitle><date>1989-09</date><risdate>1989</risdate><volume>41</volume><issue>9</issue><spage>42</spage><epage>45</epage><pages>42-45</pages><issn>1047-4838</issn><issn>0148-6608</issn><eissn>1543-1851</eissn><abstract>This article describes a rapid solidification melt spinning technique has been developed to produce amorphous powders of Fe-Nd-B alloys modified with hafnium diboride. The amorphous powders are consolidated by the hot extrusion technique into bulk magnets of various cross sections. Consolidated magnets show ultrafine grain structure stabilized by ultrafine submicron hafnium diboride particles. The extruded magnets develop strong texture-induced magnetic anisotropy which leads to attractive energy product values of up to 16 MGOe. Significant improvement in coercivity is also achieved due to ultrafine grain structure of the extruded magnets.</abstract><cop>United States</cop><doi>10.1007/BF03220332</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1047-4838 |
| ispartof | JOM (1989), 1989-09, Vol.41 (9), p.42-45 |
| issn | 1047-4838 0148-6608 1543-1851 |
| language | eng |
| recordid | cdi_crossref_primary_10_1007_BF03220332 |
| source | SpringerLink (Online service) |
| subjects | 360101 - Metals & Alloys- Preparation & Fabrication 360104 - Metals & Alloys- Physical Properties 420201 - Engineering- Cryogenic Equipment & Devices ALLOYS AMORPHOUS STATE ANISOTROPY BORON ALLOYS CHEMICAL COMPOSITION CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS EXTRUSION FABRICATION HAFNIUM ADDITIONS HAFNIUM ALLOYS IRON ALLOYS MAGNETIC PROPERTIES MAGNETIC SUSCEPTIBILITY MAGNETS MATERIALS SCIENCE MATERIALS WORKING METALLURGY MODIFICATIONS NEODYMIUM ALLOYS PHASE TRANSFORMATIONS PHYSICAL PROPERTIES POWDER METALLURGY POWDERS RARE EARTH ALLOYS SOLIDIFICATION |
| title | Fe-Nd-B magnets via the hot extrusion of amorphous powders |
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