Si3N4/SiC-Whisker Composites without Sintering Aids: II, Fracture Behavior
The fracture behavior of an Si3N4/SiC‐whisker composite fabricated without sintering aids is investigated using a double approach based on the examination of R‐curve behavior and a statistical analysis of crack propagation. In the composite with 20 vol% whisker, a 30% increase in toughness over the...
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| Veröffentlicht in: | Journal of the American Ceramic Society 1990-10, Vol.73 (10), p.3039-3045 |
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| container_issue | 10 |
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| container_title | Journal of the American Ceramic Society |
| container_volume | 73 |
| creator | Pezzotti, Giuseppe Tanaka, Isao Okamoto, Taira |
| description | The fracture behavior of an Si3N4/SiC‐whisker composite fabricated without sintering aids is investigated using a double approach based on the examination of R‐curve behavior and a statistical analysis of crack propagation. In the composite with 20 vol% whisker, a 30% increase in toughness over the matrix value can be attributed to crack‐tip phenomena. Strong interfacial bonding prevents any contribution to toughening by mechanisms operating in the wake region of the crack. Based on experimental observations of microfracture in both SiC whiskers and Si3N4 grains, toughening caused by crack‐tip phenomena is quantitatively discussed in terms of fracture energy and whisker‐distribution parameters. |
| doi_str_mv | 10.1111/j.1151-2916.1990.tb06713.x |
| format | Article |
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In the composite with 20 vol% whisker, a 30% increase in toughness over the matrix value can be attributed to crack‐tip phenomena. Strong interfacial bonding prevents any contribution to toughening by mechanisms operating in the wake region of the crack. Based on experimental observations of microfracture in both SiC whiskers and Si3N4 grains, toughening caused by crack‐tip phenomena is quantitatively discussed in terms of fracture energy and whisker‐distribution parameters.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/j.1151-2916.1990.tb06713.x</identifier><identifier>CODEN: JACTAW</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Applied sciences ; Building materials. Ceramics. 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Glasses</subject><subject>Ceramic industries</subject><subject>Chemical industry and chemicals</subject><subject>composites</subject><subject>Exact sciences and technology</subject><subject>fracture toughness</subject><subject>silicon carbide</subject><subject>silicon nitride</subject><subject>Structural ceramics</subject><subject>Technical ceramics</subject><subject>whiskers</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><sourceid>K30</sourceid><recordid>eNo9kF1PwjAUhhujiYj-h0W9dNCPrVu9EhdAEJEEDZdN13XSARu2Q-Dfu4WFc3Ny8j55T_IAcI9gB1XTzarlIxczRDuIMdgpY0gDRDqHC9BCfhNdghaEELtBiOE1uLE2q07EQq8FxnNNpl53riN3sdR2pYwTFZttYXWprLPX5bLYlc5c56UyOv9xejqxz85o9OQMjJDlzijnVS3Fny7MLbhKxdqqu2a3wfeg_xW9uZPP4SjqTVyNQ8pckXpYSA_6RArGEpkyglOPxCnEMsDClzLGGBGPJj7xYJImMAliKhiUlFCpAtIGD6ferSl-d8qWPCt2Jq9ecoRZSILKiF9Rjw0lrBTr1Ihcasu3Rm-EOXKfQEhxWGEvJ2yv1-p4jhHktV-e8dovryXy2i9v_PIDH_eiPoGEVRXuqULbUh3OFcKsOA1I4PPFdMgXw9k7Dj8Yn5F_HnR_MA</recordid><startdate>199010</startdate><enddate>199010</enddate><creator>Pezzotti, Giuseppe</creator><creator>Tanaka, Isao</creator><creator>Okamoto, Taira</creator><general>Blackwell Publishing Ltd</general><general>Blackwell</general><general>American Ceramic Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>HDMVH</scope><scope>K30</scope><scope>PAAUG</scope><scope>PAWHS</scope><scope>PAWZZ</scope><scope>PAXOH</scope><scope>PBHAV</scope><scope>PBQSW</scope><scope>PBYQZ</scope><scope>PCIWU</scope><scope>PCMID</scope><scope>PCZJX</scope><scope>PDGRG</scope><scope>PDWWI</scope><scope>PETMR</scope><scope>PFVGT</scope><scope>PGXDX</scope><scope>PIHIL</scope><scope>PISVA</scope><scope>PJCTQ</scope><scope>PJTMS</scope><scope>PLCHJ</scope><scope>PMHAD</scope><scope>PNQDJ</scope><scope>POUND</scope><scope>PPLAD</scope><scope>PQAPC</scope><scope>PQCAN</scope><scope>PQCMW</scope><scope>PQEME</scope><scope>PQHKH</scope><scope>PQMID</scope><scope>PQNCT</scope><scope>PQNET</scope><scope>PQSCT</scope><scope>PQSET</scope><scope>PSVJG</scope><scope>PVMQY</scope><scope>PZGFC</scope></search><sort><creationdate>199010</creationdate><title>Si3N4/SiC-Whisker Composites without Sintering Aids: II, Fracture Behavior</title><author>Pezzotti, Giuseppe ; Tanaka, Isao ; Okamoto, Taira</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i2869-af42ac4053ca99dcf932f43bf02c72a5ccb221346d5340dfd0d7b6a90c636ce73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>Applied sciences</topic><topic>Building materials. 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Glasses</topic><topic>Ceramic industries</topic><topic>Chemical industry and chemicals</topic><topic>composites</topic><topic>Exact sciences and technology</topic><topic>fracture toughness</topic><topic>silicon carbide</topic><topic>silicon nitride</topic><topic>Structural ceramics</topic><topic>Technical ceramics</topic><topic>whiskers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pezzotti, Giuseppe</creatorcontrib><creatorcontrib>Tanaka, Isao</creatorcontrib><creatorcontrib>Okamoto, Taira</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Periodicals Index Online Segment 15</collection><collection>Periodicals Index Online</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - West</collection><collection>Primary Sources Access (Plan D) - International</collection><collection>Primary Sources Access & Build (Plan A) - MEA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Midwest</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Northeast</collection><collection>Primary Sources Access (Plan D) - Southeast</collection><collection>Primary Sources Access (Plan D) - North Central</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Southeast</collection><collection>Primary Sources Access (Plan D) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - UK / I</collection><collection>Primary Sources Access (Plan D) - Canada</collection><collection>Primary Sources Access (Plan D) - EMEALA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - North Central</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - International</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - International</collection><collection>Primary Sources Access (Plan D) - West</collection><collection>Periodicals Index Online Segments 1-50</collection><collection>Primary Sources Access (Plan D) - APAC</collection><collection>Primary Sources Access (Plan D) - Midwest</collection><collection>Primary Sources Access (Plan D) - MEA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Canada</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - UK / I</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - EMEALA</collection><collection>Primary Sources Access & Build (Plan A) - APAC</collection><collection>Primary Sources Access & Build (Plan A) - Canada</collection><collection>Primary Sources Access & Build (Plan A) - West</collection><collection>Primary Sources Access & Build (Plan A) - EMEALA</collection><collection>Primary Sources Access (Plan D) - Northeast</collection><collection>Primary Sources Access & Build (Plan A) - Midwest</collection><collection>Primary Sources Access & Build (Plan A) - North Central</collection><collection>Primary Sources Access & Build (Plan A) - Northeast</collection><collection>Primary Sources Access & Build (Plan A) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - Southeast</collection><collection>Primary Sources Access (Plan D) - UK / I</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - APAC</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - MEA</collection><jtitle>Journal of the American Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pezzotti, Giuseppe</au><au>Tanaka, Isao</au><au>Okamoto, Taira</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Si3N4/SiC-Whisker Composites without Sintering Aids: II, Fracture Behavior</atitle><jtitle>Journal of the American Ceramic Society</jtitle><date>1990-10</date><risdate>1990</risdate><volume>73</volume><issue>10</issue><spage>3039</spage><epage>3045</epage><pages>3039-3045</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><coden>JACTAW</coden><abstract>The fracture behavior of an Si3N4/SiC‐whisker composite fabricated without sintering aids is investigated using a double approach based on the examination of R‐curve behavior and a statistical analysis of crack propagation. In the composite with 20 vol% whisker, a 30% increase in toughness over the matrix value can be attributed to crack‐tip phenomena. Strong interfacial bonding prevents any contribution to toughening by mechanisms operating in the wake region of the crack. Based on experimental observations of microfracture in both SiC whiskers and Si3N4 grains, toughening caused by crack‐tip phenomena is quantitatively discussed in terms of fracture energy and whisker‐distribution parameters.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1151-2916.1990.tb06713.x</doi><tpages>7</tpages></addata></record> |
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| ispartof | Journal of the American Ceramic Society, 1990-10, Vol.73 (10), p.3039-3045 |
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| language | eng |
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| source | Wiley Journals; Periodicals Index Online |
| subjects | Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals composites Exact sciences and technology fracture toughness silicon carbide silicon nitride Structural ceramics Technical ceramics whiskers |
| title | Si3N4/SiC-Whisker Composites without Sintering Aids: II, Fracture Behavior |
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