Ultrasonic imaging of porosity variations produced during sintering
A silicon carbide disk was sintered from 2090 to 2190 C in 25-C steps. After each sintering step, the disk was examined using a precision acoustic scanning system to determine acoustic attenuation and velocity. The bulk density was found to vary nonmonotonically with sintering temperature. The densi...
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| Veröffentlicht in: | Journal of the American Ceramic Society 1989-07, Vol.72 (7), p.1282-1285 |
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| container_end_page | 1285 |
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| container_issue | 7 |
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| container_title | Journal of the American Ceramic Society |
| container_volume | 72 |
| creator | Generazio, Edward R. Roth, Don J. Stang, David B. |
| description | A silicon carbide disk was sintered from 2090 to 2190 C in 25-C steps. After each sintering step, the disk was examined using a precision acoustic scanning system to determine acoustic attenuation and velocity. The bulk density was found to vary nonmonotonically with sintering temperature. The density varied as much as 10 percent from its value at 2090 C during the sintering process. Local density fluctuations occurred in an organized and history-dependent way. These local density fluctuations varied up to + or - 7 percent of the bulk density and were made visible by acoustic attenuation and velocity mapping. |
| doi_str_mv | 10.1111/j.1151-2916.1989.tb09729.x |
| format | Article |
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After each sintering step, the disk was examined using a precision acoustic scanning system to determine acoustic attenuation and velocity. The bulk density was found to vary nonmonotonically with sintering temperature. The density varied as much as 10 percent from its value at 2090 C during the sintering process. Local density fluctuations occurred in an organized and history-dependent way. These local density fluctuations varied up to + or - 7 percent of the bulk density and were made visible by acoustic attenuation and velocity mapping.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/j.1151-2916.1989.tb09729.x</identifier><identifier>CODEN: JACTAW</identifier><language>eng</language><publisher>Legacy CDMS: Blackwell</publisher><subject>360601 - Other Materials- Preparation & Manufacture ; 360603 - Materials- Properties ; ACOUSTIC MONITORING ; Applied sciences ; Building materials. Ceramics. 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After each sintering step, the disk was examined using a precision acoustic scanning system to determine acoustic attenuation and velocity. The bulk density was found to vary nonmonotonically with sintering temperature. The density varied as much as 10 percent from its value at 2090 C during the sintering process. Local density fluctuations occurred in an organized and history-dependent way. These local density fluctuations varied up to + or - 7 percent of the bulk density and were made visible by acoustic attenuation and velocity mapping.</description><subject>360601 - Other Materials- Preparation & Manufacture</subject><subject>360603 - Materials- Properties</subject><subject>ACOUSTIC MONITORING</subject><subject>Applied sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>BULK DENSITY</subject><subject>CARBIDES</subject><subject>CARBON COMPOUNDS</subject><subject>Ceramic industries</subject><subject>Chemical industry and chemicals</subject><subject>DENSITY</subject><subject>Exact sciences and technology</subject><subject>FABRICATION</subject><subject>MATERIALS SCIENCE</subject><subject>MONITORING</subject><subject>Nonmetallic Materials</subject><subject>PHYSICAL PROPERTIES</subject><subject>POROSITY</subject><subject>SILICON CARBIDES</subject><subject>SILICON COMPOUNDS</subject><subject>SINTERING</subject><subject>Technical ceramics</subject><subject>VARIATIONS</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><sourceid>CYI</sourceid><sourceid>K30</sourceid><recordid>eNpd0ctKAzEUBuAgCtbqG7gYqribmsskM1lK8QYFN3UdMrnUlGlSk4zYtzelXZnNSTgfP4cTAGYIzlE5j5tSKKoxR2yOeMfnuYe8xXz-ewYmiJ5a52ACIcR122F4Ca5S2pRn4c0ELD6HHGUK3qnKbeXa-XUVbLULMSSX99WPjE5mF3yqdjHoURld6TEeWHI-m8PtGlxYOSRzc6pTsHp5Xi3e6uXH6_viaVl7jFGuG0170hPGusYijSwlnVHY9Now2yNrGo0llMZCTQzEqpWaN4xzY2zXQK3IFMyOsSFlJ5Jy2agvFbw3KgtKWogoL-jhiMq036NJWWxdUmYYpDdhTAJT3DIGuwLv_sFNGKMv8wuEeUfaFuKDuj8pmZQcbJReuSR2sewq7kVJIgw3hd0emZdJCp9jCSm_ASFDFCPyB2QUfwQ</recordid><startdate>19890701</startdate><enddate>19890701</enddate><creator>Generazio, Edward R.</creator><creator>Roth, Don J.</creator><creator>Stang, David B.</creator><general>Blackwell</general><general>American Ceramic Society</general><scope>CYE</scope><scope>CYI</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><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>OTOTI</scope></search><sort><creationdate>19890701</creationdate><title>Ultrasonic imaging of porosity variations produced during sintering</title><author>Generazio, Edward R. ; Roth, Don J. ; Stang, David B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-n221t-4d5b3b36684f1d1f538ec2ebde6fb1fe4d2a0aef0d3e02c7ad94699eef840dc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>360601 - Other Materials- Preparation & Manufacture</topic><topic>360603 - Materials- Properties</topic><topic>ACOUSTIC MONITORING</topic><topic>Applied sciences</topic><topic>Building materials. 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After each sintering step, the disk was examined using a precision acoustic scanning system to determine acoustic attenuation and velocity. The bulk density was found to vary nonmonotonically with sintering temperature. The density varied as much as 10 percent from its value at 2090 C during the sintering process. Local density fluctuations occurred in an organized and history-dependent way. These local density fluctuations varied up to + or - 7 percent of the bulk density and were made visible by acoustic attenuation and velocity mapping.</abstract><cop>Legacy CDMS</cop><pub>Blackwell</pub><doi>10.1111/j.1151-2916.1989.tb09729.x</doi><tpages>4</tpages></addata></record> |
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| ispartof | Journal of the American Ceramic Society, 1989-07, Vol.72 (7), p.1282-1285 |
| issn | 0002-7820 1551-2916 |
| language | eng |
| recordid | cdi_osti_scitechconnect_5370159 |
| source | Wiley Online Library - AutoHoldings Journals; NASA Technical Reports Server; Periodicals Index Online |
| subjects | 360601 - Other Materials- Preparation & Manufacture 360603 - Materials- Properties ACOUSTIC MONITORING Applied sciences Building materials. Ceramics. Glasses BULK DENSITY CARBIDES CARBON COMPOUNDS Ceramic industries Chemical industry and chemicals DENSITY Exact sciences and technology FABRICATION MATERIALS SCIENCE MONITORING Nonmetallic Materials PHYSICAL PROPERTIES POROSITY SILICON CARBIDES SILICON COMPOUNDS SINTERING Technical ceramics VARIATIONS |
| title | Ultrasonic imaging of porosity variations produced during sintering |
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