Strength and Microstructure of Brazed Alumina-Silicon Carbide Ceramic-Matrix Composites
Alumina‐silicon carbide whisker (Al2O3‐SiCw) composite pieces were brazed under high vacuum with Ag‐Cu‐based active braze alloys. Joined specimens exhibit mean fracture strengths of 480 MPa (4.5 wt% titanium in braze) and 591 MPa (2.0 wt% titanium in braze) in four‐point bend tests; these strengths...
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| Veröffentlicht in: | Journal of the American Ceramic Society 1999-03, Vol.82 (3), p.705-710 |
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| container_title | Journal of the American Ceramic Society |
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| creator | Zurbuchen, Mark A. Carim, Altaf H. |
| description | Alumina‐silicon carbide whisker (Al2O3‐SiCw) composite pieces were brazed under high vacuum with Ag‐Cu‐based active braze alloys. Joined specimens exhibit mean fracture strengths of 480 MPa (4.5 wt% titanium in braze) and 591 MPa (2.0 wt% titanium in braze) in four‐point bend tests; these strengths are 78%−96% of the measured strength of the composite. The interfacial phases have been identified, by using transmission electron microscopy and electron probe microanalysis, as being Ti3(Cu,Al,Si)3O, Ti5Si3, TiC, and γ‐TiO, and the relative locations of the interfacial phases are described. The high strengths are believed to result from both good wetting behavior under high vacuum and the composite nature of the reaction product morphology. |
| doi_str_mv | 10.1111/j.1151-2916.1999.tb01820.x |
| format | Article |
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Joined specimens exhibit mean fracture strengths of 480 MPa (4.5 wt% titanium in braze) and 591 MPa (2.0 wt% titanium in braze) in four‐point bend tests; these strengths are 78%−96% of the measured strength of the composite. The interfacial phases have been identified, by using transmission electron microscopy and electron probe microanalysis, as being Ti3(Cu,Al,Si)3O, Ti5Si3, TiC, and γ‐TiO, and the relative locations of the interfacial phases are described. The high strengths are believed to result from both good wetting behavior under high vacuum and the composite nature of the reaction product morphology.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/j.1151-2916.1999.tb01820.x</identifier><identifier>CODEN: JACTAW</identifier><language>eng</language><publisher>Westerville, Ohio: American Ceramics Society</publisher><subject>Applied sciences ; Building materials. Ceramics. 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Joined specimens exhibit mean fracture strengths of 480 MPa (4.5 wt% titanium in braze) and 591 MPa (2.0 wt% titanium in braze) in four‐point bend tests; these strengths are 78%−96% of the measured strength of the composite. The interfacial phases have been identified, by using transmission electron microscopy and electron probe microanalysis, as being Ti3(Cu,Al,Si)3O, Ti5Si3, TiC, and γ‐TiO, and the relative locations of the interfacial phases are described. The high strengths are believed to result from both good wetting behavior under high vacuum and the composite nature of the reaction product morphology.</description><subject>Applied sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Ceramic industries</subject><subject>Chemical industry and chemicals</subject><subject>Exact sciences and technology</subject><subject>Miscellaneous</subject><subject>Technical ceramics</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNqVkFtv1DAQRi0EEkvb_xAhxFsW3-ILL2iJSqFqadUtbd-sieOAl1wW2xFbfj2JdgWv4JeRNWe-0RyEXhK8JNN7s5lKQXKqiVgSrfUyVZgoipe7J2hBikPrKVpgjGkup85z9CLGzfQlWvEFul-n4Pqv6VsGfZ1dehuGmMJo0xhcNjTZ-wC_XJ2t2rHzPeRr33o79FkJofK1y0oXoPM2v4QU_C4rh247RJ9cPEbPGmijOznUI_Tlw-lt-TG_uDr7VK4ucsu5KHKnBGgtsKKyEhXXNVM1YEc5sVxR4IQ2DKhlArDlguJauVpWllnpZM0B2BF6vc_dhuHH6GIynY_WtS30bhijoZJorGTxL2ChFeET-HYPzipicI3ZBt9BeDQEm1m62ZhZupnNmlm6OUg3u2n41WELRAttE6C3Pv5NkEQKzCbs3R776Vv3-B8LzPmqPJV4PiffJ_iY3O5PAoTvRkgmC3P_-cywu2uB1zcP5pb9Blhxpgs</recordid><startdate>199903</startdate><enddate>199903</enddate><creator>Zurbuchen, Mark A.</creator><creator>Carim, Altaf H.</creator><general>American Ceramics Society</general><general>Blackwell</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7SR</scope><scope>JG9</scope></search><sort><creationdate>199903</creationdate><title>Strength and Microstructure of Brazed Alumina-Silicon Carbide Ceramic-Matrix Composites</title><author>Zurbuchen, Mark A. ; Carim, Altaf H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4465-e86a9960827b6b49d38da0e241c482a412f3a2c36a0c4620d8ed7bc3c7e7d4aa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Applied sciences</topic><topic>Building materials. Ceramics. Glasses</topic><topic>Ceramic industries</topic><topic>Chemical industry and chemicals</topic><topic>Exact sciences and technology</topic><topic>Miscellaneous</topic><topic>Technical ceramics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zurbuchen, Mark A.</creatorcontrib><creatorcontrib>Carim, Altaf H.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Engineered Materials Abstracts</collection><collection>Materials Research Database</collection><jtitle>Journal of the American Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zurbuchen, Mark A.</au><au>Carim, Altaf H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Strength and Microstructure of Brazed Alumina-Silicon Carbide Ceramic-Matrix Composites</atitle><jtitle>Journal of the American Ceramic Society</jtitle><date>1999-03</date><risdate>1999</risdate><volume>82</volume><issue>3</issue><spage>705</spage><epage>710</epage><pages>705-710</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><coden>JACTAW</coden><abstract>Alumina‐silicon carbide whisker (Al2O3‐SiCw) composite pieces were brazed under high vacuum with Ag‐Cu‐based active braze alloys. Joined specimens exhibit mean fracture strengths of 480 MPa (4.5 wt% titanium in braze) and 591 MPa (2.0 wt% titanium in braze) in four‐point bend tests; these strengths are 78%−96% of the measured strength of the composite. The interfacial phases have been identified, by using transmission electron microscopy and electron probe microanalysis, as being Ti3(Cu,Al,Si)3O, Ti5Si3, TiC, and γ‐TiO, and the relative locations of the interfacial phases are described. The high strengths are believed to result from both good wetting behavior under high vacuum and the composite nature of the reaction product morphology.</abstract><cop>Westerville, Ohio</cop><pub>American Ceramics Society</pub><doi>10.1111/j.1151-2916.1999.tb01820.x</doi><tpages>6</tpages></addata></record> |
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| source | Wiley-Blackwell Journals |
| subjects | Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Exact sciences and technology Miscellaneous Technical ceramics |
| title | Strength and Microstructure of Brazed Alumina-Silicon Carbide Ceramic-Matrix Composites |
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