Cast-alumina metal matrix composites and method of manufacturing the same
This composite consists of an aluminum-alloy matrix containing by volume percent, 0.4 to 8.8 alumina, 1 to 4.4 carbon or graphite and 0.5 to 20 nickel-bearing aluminide. The particles have an average size between 3 and 250 mu m and the carbon and graphite particles have an average size between 10 an...
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| creator | WARNER, ANTHONY EDWARD MOLINE STEPHENSON, THOMAS FRANCIS BELL, JAMES ALEXANDER EVERT ROHATGI, PRADEEP KUMAR |
| description | This composite consists of an aluminum-alloy matrix containing by volume percent, 0.4 to 8.8 alumina, 1 to 4.4 carbon or graphite and 0.5 to 20 nickel-bearing aluminide. The particles have an average size between 3 and 250 mu m and the carbon and graphite particles have an average size between 10 and 250 mu m. The composite is cast by stirring alumina and carbon or graphite contained in a molten aluminum or aluminum-base alloy to form a molten mixture. The molten mixture is cast directly from a temperature above the liquidus of the matrix alloy. While solidifying, carbon or graphite particles delay or hinder the settling of alumina to create a more uniform composite structure. The resulting composite structure contains an aluminum-base alloy, alumina, carbon or graphite and nickel-bearing aluminide dispersoids. |
| format | Patent |
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The particles have an average size between 3 and 250 mu m and the carbon and graphite particles have an average size between 10 and 250 mu m. The composite is cast by stirring alumina and carbon or graphite contained in a molten aluminum or aluminum-base alloy to form a molten mixture. The molten mixture is cast directly from a temperature above the liquidus of the matrix alloy. While solidifying, carbon or graphite particles delay or hinder the settling of alumina to create a more uniform composite structure. The resulting composite structure contains an aluminum-base alloy, alumina, carbon or graphite and nickel-bearing aluminide dispersoids.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>ALLOYS ; CASTING ; CASTING OF METALS ; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; PERFORMING OPERATIONS ; POWDER METALLURGY ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2002</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20020612&DB=EPODOC&CC=EP&NR=0897994B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20020612&DB=EPODOC&CC=EP&NR=0897994B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WARNER, ANTHONY EDWARD MOLINE</creatorcontrib><creatorcontrib>STEPHENSON, THOMAS FRANCIS</creatorcontrib><creatorcontrib>BELL, JAMES ALEXANDER EVERT</creatorcontrib><creatorcontrib>ROHATGI, PRADEEP KUMAR</creatorcontrib><title>Cast-alumina metal matrix composites and method of manufacturing the same</title><description>This composite consists of an aluminum-alloy matrix containing by volume percent, 0.4 to 8.8 alumina, 1 to 4.4 carbon or graphite and 0.5 to 20 nickel-bearing aluminide. The particles have an average size between 3 and 250 mu m and the carbon and graphite particles have an average size between 10 and 250 mu m. The composite is cast by stirring alumina and carbon or graphite contained in a molten aluminum or aluminum-base alloy to form a molten mixture. The molten mixture is cast directly from a temperature above the liquidus of the matrix alloy. While solidifying, carbon or graphite particles delay or hinder the settling of alumina to create a more uniform composite structure. The resulting composite structure contains an aluminum-base alloy, alumina, carbon or graphite and nickel-bearing aluminide dispersoids.</description><subject>ALLOYS</subject><subject>CASTING</subject><subject>CASTING OF METALS</subject><subject>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPB0Tiwu0U3MKc3NzEtUyE0tScxRyE0sKcqsUEjOzy3IL84sSS1WSMxLAcll5Kco5KcB5fNK0xKTS0qLMvPSFUoyUhWKE3NTeRhY0xJzilN5oTQ3g4Kba4izh25qQX58anFBYnJqXmpJvGuAgYWluaWliZOhMRFKAIt5NIc</recordid><startdate>20020612</startdate><enddate>20020612</enddate><creator>WARNER, ANTHONY EDWARD MOLINE</creator><creator>STEPHENSON, THOMAS FRANCIS</creator><creator>BELL, JAMES ALEXANDER EVERT</creator><creator>ROHATGI, PRADEEP KUMAR</creator><scope>EVB</scope></search><sort><creationdate>20020612</creationdate><title>Cast-alumina metal matrix composites and method of manufacturing the same</title><author>WARNER, ANTHONY EDWARD MOLINE ; STEPHENSON, THOMAS FRANCIS ; BELL, JAMES ALEXANDER EVERT ; ROHATGI, PRADEEP KUMAR</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0897994B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2002</creationdate><topic>ALLOYS</topic><topic>CASTING</topic><topic>CASTING OF METALS</topic><topic>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>WARNER, ANTHONY EDWARD MOLINE</creatorcontrib><creatorcontrib>STEPHENSON, THOMAS FRANCIS</creatorcontrib><creatorcontrib>BELL, JAMES ALEXANDER EVERT</creatorcontrib><creatorcontrib>ROHATGI, PRADEEP KUMAR</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WARNER, ANTHONY EDWARD MOLINE</au><au>STEPHENSON, THOMAS FRANCIS</au><au>BELL, JAMES ALEXANDER EVERT</au><au>ROHATGI, PRADEEP KUMAR</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Cast-alumina metal matrix composites and method of manufacturing the same</title><date>2002-06-12</date><risdate>2002</risdate><abstract>This composite consists of an aluminum-alloy matrix containing by volume percent, 0.4 to 8.8 alumina, 1 to 4.4 carbon or graphite and 0.5 to 20 nickel-bearing aluminide. The particles have an average size between 3 and 250 mu m and the carbon and graphite particles have an average size between 10 and 250 mu m. The composite is cast by stirring alumina and carbon or graphite contained in a molten aluminum or aluminum-base alloy to form a molten mixture. The molten mixture is cast directly from a temperature above the liquidus of the matrix alloy. While solidifying, carbon or graphite particles delay or hinder the settling of alumina to create a more uniform composite structure. The resulting composite structure contains an aluminum-base alloy, alumina, carbon or graphite and nickel-bearing aluminide dispersoids.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Cast-alumina metal matrix composites and method of manufacturing the same |
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