Evidence for High-Temperature Forms of Zirconium and Tantalum Monocarbides
Evidence has been found which suggests the existence of high‐temperature crystalline modifications of both zirconium carbide and tantalum carbide. The high‐temperature inversion in zirconium carbide, indicated by a sharp decrease in spectral emisivity, in electrical resistivity, and in density, was...
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| Veröffentlicht in: | Journal of the American Ceramic Society 1963-04, Vol.46 (4), p.177-179 |
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| container_title | Journal of the American Ceramic Society |
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| creator | SHAFFER, PETER T. B. |
| description | Evidence has been found which suggests the existence of high‐temperature crystalline modifications of both zirconium carbide and tantalum carbide. The high‐temperature inversion in zirconium carbide, indicated by a sharp decrease in spectral emisivity, in electrical resistivity, and in density, was reversible. No permanent changes in microhardness or in X‐ray diffraction patterns were found after cooling to room temperature. Emissivity measurements showed a hysteresis effect of approximately 400° C for zirconium carbide. A similar, although less sharply defined, effect was noted for tantalum carbide. No such effect was found in solid solutions of these two monocarbides. |
| doi_str_mv | 10.1111/j.1151-2916.1963.tb11710.x |
| format | Article |
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B.</creator><creatorcontrib>SHAFFER, PETER T. B. ; Carborundum Co., Niagara Falls, N.Y</creatorcontrib><description>Evidence has been found which suggests the existence of high‐temperature crystalline modifications of both zirconium carbide and tantalum carbide. The high‐temperature inversion in zirconium carbide, indicated by a sharp decrease in spectral emisivity, in electrical resistivity, and in density, was reversible. No permanent changes in microhardness or in X‐ray diffraction patterns were found after cooling to room temperature. Emissivity measurements showed a hysteresis effect of approximately 400° C for zirconium carbide. A similar, although less sharply defined, effect was noted for tantalum carbide. No such effect was found in solid solutions of these two monocarbides.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/j.1151-2916.1963.tb11710.x</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>CRYSTALS ; DENSITY ; DIFFRACTION ; ELECTRIC CONDUCTIVITY ; EMISSION ; HARDNESS ; HEAT TREATMENTS ; HIGH TEMPERATURE ; HYSTERESIS ; METALS, CERAMICS, AND OTHER MATERIALS ; SOLID SOLUTIONS ; SPECTRA ; TANTALUM CARBIDES ; VARIATIONS ; X RADIATION ; ZIRCONIUM CARBIDES</subject><ispartof>Journal of the American Ceramic Society, 1963-04, Vol.46 (4), p.177-179</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4127-3c1d8fbf0d528546c54f0a16adf14b6133a225d1b98720497965ff57b080d3ae3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1151-2916.1963.tb11710.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1151-2916.1963.tb11710.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,885,1417,27869,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/4714212$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>SHAFFER, PETER T. B.</creatorcontrib><creatorcontrib>Carborundum Co., Niagara Falls, N.Y</creatorcontrib><title>Evidence for High-Temperature Forms of Zirconium and Tantalum Monocarbides</title><title>Journal of the American Ceramic Society</title><description>Evidence has been found which suggests the existence of high‐temperature crystalline modifications of both zirconium carbide and tantalum carbide. The high‐temperature inversion in zirconium carbide, indicated by a sharp decrease in spectral emisivity, in electrical resistivity, and in density, was reversible. No permanent changes in microhardness or in X‐ray diffraction patterns were found after cooling to room temperature. Emissivity measurements showed a hysteresis effect of approximately 400° C for zirconium carbide. A similar, although less sharply defined, effect was noted for tantalum carbide. No such effect was found in solid solutions of these two monocarbides.</description><subject>CRYSTALS</subject><subject>DENSITY</subject><subject>DIFFRACTION</subject><subject>ELECTRIC CONDUCTIVITY</subject><subject>EMISSION</subject><subject>HARDNESS</subject><subject>HEAT TREATMENTS</subject><subject>HIGH TEMPERATURE</subject><subject>HYSTERESIS</subject><subject>METALS, CERAMICS, AND OTHER MATERIALS</subject><subject>SOLID SOLUTIONS</subject><subject>SPECTRA</subject><subject>TANTALUM CARBIDES</subject><subject>VARIATIONS</subject><subject>X RADIATION</subject><subject>ZIRCONIUM CARBIDES</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1963</creationdate><recordtype>article</recordtype><sourceid>K30</sourceid><recordid>eNqVkM1u2zAQhImgAeKmfQchPcvlkqIo9VIEhp0fOE4ODgrksqAosqFriy4pN87bl4KM3ruXxWJnBoOPkCugU0jzdZOWgJzVUE6hLvm0bwBk-h7PyATE6fWBTCilLJcVoxfkY4ybdEJdFRNyP__jWtNpk1kfslv38zVfm93eBNUfgskWPuxi5m324oL2nTvsMtW12Vp1vdqm48F3XqvQpIz4iZxbtY3m82lfkufFfD27zZePN3ez62WuC2Ay5xrayjaWtoJVoii1KCxVUKrWQtGUwLliTLTQ1JVktKhlXQprhWxoRVuuDL8kV2Ouj73DqF1v9Gsq1xndYyGhYMCS6Mso2gf_-2Bijxt_CF3qhcDqiktW8kH1bVTp4GMMxuI-uJ0K7wgUB8C4wQEwDhRxAIwnwHhM5u-j-c1tzft_OPH-ejYHKVNCPia42JvjvwQVfmEpuRT4Y3WDT7B4Wa3WS3zgfwGXTZCm</recordid><startdate>196304</startdate><enddate>196304</enddate><creator>SHAFFER, PETER T. B.</creator><general>Blackwell Publishing Ltd</general><general>American Ceramic Society</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</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>OTOTI</scope></search><sort><creationdate>196304</creationdate><title>Evidence for High-Temperature Forms of Zirconium and Tantalum Monocarbides</title><author>SHAFFER, PETER T. B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4127-3c1d8fbf0d528546c54f0a16adf14b6133a225d1b98720497965ff57b080d3ae3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1963</creationdate><topic>CRYSTALS</topic><topic>DENSITY</topic><topic>DIFFRACTION</topic><topic>ELECTRIC CONDUCTIVITY</topic><topic>EMISSION</topic><topic>HARDNESS</topic><topic>HEAT TREATMENTS</topic><topic>HIGH TEMPERATURE</topic><topic>HYSTERESIS</topic><topic>METALS, CERAMICS, AND OTHER MATERIALS</topic><topic>SOLID SOLUTIONS</topic><topic>SPECTRA</topic><topic>TANTALUM CARBIDES</topic><topic>VARIATIONS</topic><topic>X RADIATION</topic><topic>ZIRCONIUM CARBIDES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>SHAFFER, PETER T. B.</creatorcontrib><creatorcontrib>Carborundum Co., Niagara Falls, N.Y</creatorcontrib><collection>Istex</collection><collection>CrossRef</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><collection>OSTI.GOV</collection><jtitle>Journal of the American Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SHAFFER, PETER T. B.</au><aucorp>Carborundum Co., Niagara Falls, N.Y</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evidence for High-Temperature Forms of Zirconium and Tantalum Monocarbides</atitle><jtitle>Journal of the American Ceramic Society</jtitle><date>1963-04</date><risdate>1963</risdate><volume>46</volume><issue>4</issue><spage>177</spage><epage>179</epage><pages>177-179</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><abstract>Evidence has been found which suggests the existence of high‐temperature crystalline modifications of both zirconium carbide and tantalum carbide. The high‐temperature inversion in zirconium carbide, indicated by a sharp decrease in spectral emisivity, in electrical resistivity, and in density, was reversible. No permanent changes in microhardness or in X‐ray diffraction patterns were found after cooling to room temperature. Emissivity measurements showed a hysteresis effect of approximately 400° C for zirconium carbide. A similar, although less sharply defined, effect was noted for tantalum carbide. No such effect was found in solid solutions of these two monocarbides.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1151-2916.1963.tb11710.x</doi><tpages>3</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0002-7820 |
| ispartof | Journal of the American Ceramic Society, 1963-04, Vol.46 (4), p.177-179 |
| issn | 0002-7820 1551-2916 |
| language | eng |
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| source | Wiley Journals; Periodicals Index Online |
| subjects | CRYSTALS DENSITY DIFFRACTION ELECTRIC CONDUCTIVITY EMISSION HARDNESS HEAT TREATMENTS HIGH TEMPERATURE HYSTERESIS METALS, CERAMICS, AND OTHER MATERIALS SOLID SOLUTIONS SPECTRA TANTALUM CARBIDES VARIATIONS X RADIATION ZIRCONIUM CARBIDES |
| title | Evidence for High-Temperature Forms of Zirconium and Tantalum Monocarbides |
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