Bonded ceramic-metal article
A new and improved bonded ceramic-metal article and the method of making the article is described. The ceramic-metal article comprises a ceramic article, such as a lanthana-strengthened yttria article, bonded to a metal article, such as niobium, by a layer of a brazing material to form a bonded cera...
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| creator | KANG, SHINHOO DUNN EDMUND M WEI GEORGE C |
| description | A new and improved bonded ceramic-metal article and the method of making the article is described. The ceramic-metal article comprises a ceramic article, such as a lanthana-strengthened yttria article, bonded to a metal article, such as niobium, by a layer of a brazing material to form a bonded ceramic-metal article. The method of bonding the ceramic article to the metal article comprises placing the brazing alloy, such as a brazing alloy consisting essentially of 63% by weight silver, 35.25% by weight copper, and 1.75% by weight titanium, between the lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquidus temperature of the brazing alloy for a period of about 5 minutes. Another method of bonding the ceramic article comprises coating a surface of the lanthana-strengthened yttria article with a group IVB metal, such as titanium, hafnium, and zirconium then placing a different brazing alloy, such as a brazing alloy consisting essentially of 72% by weight silver and 28% by weight copper or a brazing alloy consisting essentially of 82% by weight gold and 18% by weight nickel, between the coated lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquidus temperature of the brazing alloy for a period of about 5 minutes. |
| format | Patent |
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The ceramic-metal article comprises a ceramic article, such as a lanthana-strengthened yttria article, bonded to a metal article, such as niobium, by a layer of a brazing material to form a bonded ceramic-metal article. The method of bonding the ceramic article to the metal article comprises placing the brazing alloy, such as a brazing alloy consisting essentially of 63% by weight silver, 35.25% by weight copper, and 1.75% by weight titanium, between the lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquidus temperature of the brazing alloy for a period of about 5 minutes. Another method of bonding the ceramic article comprises coating a surface of the lanthana-strengthened yttria article with a group IVB metal, such as titanium, hafnium, and zirconium then placing a different brazing alloy, such as a brazing alloy consisting essentially of 72% by weight silver and 28% by weight copper or a brazing alloy consisting essentially of 82% by weight gold and 18% by weight nickel, between the coated lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquidus temperature of the brazing alloy for a period of about 5 minutes.</description><language>eng</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMISTRY ; CLADDING OR PLATING BY SOLDERING OR WELDING ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ; LIME, MAGNESIA ; MACHINE TOOLS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; METALLURGY ; PERFORMING OPERATIONS ; REFRACTORIES ; SLAG ; SOLDERING OR UNSOLDERING ; TRANSPORTING ; TREATMENT OF NATURAL STONE ; WELDING ; WORKING BY LASER BEAM</subject><creationdate>1991</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=19911008&DB=EPODOC&CC=US&NR=5055361A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19911008&DB=EPODOC&CC=US&NR=5055361A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KANG, SHINHOO</creatorcontrib><creatorcontrib>DUNN; EDMUND M</creatorcontrib><creatorcontrib>WEI; GEORGE C</creatorcontrib><title>Bonded ceramic-metal article</title><description>A new and improved bonded ceramic-metal article and the method of making the article is described. 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Another method of bonding the ceramic article comprises coating a surface of the lanthana-strengthened yttria article with a group IVB metal, such as titanium, hafnium, and zirconium then placing a different brazing alloy, such as a brazing alloy consisting essentially of 72% by weight silver and 28% by weight copper or a brazing alloy consisting essentially of 82% by weight gold and 18% by weight nickel, between the coated lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquidus temperature of the brazing alloy for a period of about 5 minutes.</description><subject>ARTIFICIAL STONE</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMISTRY</subject><subject>CLADDING OR PLATING BY SOLDERING OR WELDING</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>CONCRETE</subject><subject>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</subject><subject>LIME, MAGNESIA</subject><subject>MACHINE TOOLS</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>REFRACTORIES</subject><subject>SLAG</subject><subject>SOLDERING OR UNSOLDERING</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF NATURAL STONE</subject><subject>WELDING</subject><subject>WORKING BY LASER BEAM</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1991</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJBxys9LSU1RSE4tSszNTNbNTS1JzFFILCrJTM5J5WFgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8aHBpgampsZmho7GhFUAAAXYIuM</recordid><startdate>19911008</startdate><enddate>19911008</enddate><creator>KANG, SHINHOO</creator><creator>DUNN; EDMUND M</creator><creator>WEI; GEORGE C</creator><scope>EVB</scope></search><sort><creationdate>19911008</creationdate><title>Bonded ceramic-metal article</title><author>KANG, SHINHOO ; DUNN; EDMUND M ; WEI; GEORGE C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US5055361A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1991</creationdate><topic>ARTIFICIAL STONE</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMISTRY</topic><topic>CLADDING OR PLATING BY SOLDERING OR WELDING</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>CONCRETE</topic><topic>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</topic><topic>LIME, MAGNESIA</topic><topic>MACHINE TOOLS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>REFRACTORIES</topic><topic>SLAG</topic><topic>SOLDERING OR UNSOLDERING</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF NATURAL STONE</topic><topic>WELDING</topic><topic>WORKING BY LASER BEAM</topic><toplevel>online_resources</toplevel><creatorcontrib>KANG, SHINHOO</creatorcontrib><creatorcontrib>DUNN; EDMUND M</creatorcontrib><creatorcontrib>WEI; GEORGE C</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KANG, SHINHOO</au><au>DUNN; EDMUND M</au><au>WEI; GEORGE C</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Bonded ceramic-metal article</title><date>1991-10-08</date><risdate>1991</risdate><abstract>A new and improved bonded ceramic-metal article and the method of making the article is described. The ceramic-metal article comprises a ceramic article, such as a lanthana-strengthened yttria article, bonded to a metal article, such as niobium, by a layer of a brazing material to form a bonded ceramic-metal article. The method of bonding the ceramic article to the metal article comprises placing the brazing alloy, such as a brazing alloy consisting essentially of 63% by weight silver, 35.25% by weight copper, and 1.75% by weight titanium, between the lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquidus temperature of the brazing alloy for a period of about 5 minutes. Another method of bonding the ceramic article comprises coating a surface of the lanthana-strengthened yttria article with a group IVB metal, such as titanium, hafnium, and zirconium then placing a different brazing alloy, such as a brazing alloy consisting essentially of 72% by weight silver and 28% by weight copper or a brazing alloy consisting essentially of 82% by weight gold and 18% by weight nickel, between the coated lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquidus temperature of the brazing alloy for a period of about 5 minutes.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING LIME, MAGNESIA MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS REFRACTORIES SLAG SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF NATURAL STONE WELDING WORKING BY LASER BEAM |
| title | Bonded ceramic-metal article |
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