Oxygen Potential Measurement of Americium Oxide by Electromotive Force Method
The oxygen potentials of AmO2−x were measured in the x range of 0.01–0.5 and the temperature range of 1000–1333 K by the electromotive force method. The oxygen potentials at 1333 K were −19.83 kJ/mol for x=0.019 and −319.1 kJ/mol for x=0.485, which were higher than those of CeO2−x by approximately 2...
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| Veröffentlicht in: | Journal of the American Ceramic Society 2008-06, Vol.91 (6), p.1981-1985 |
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| container_end_page | 1985 |
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| container_issue | 6 |
| container_start_page | 1981 |
| container_title | Journal of the American Ceramic Society |
| container_volume | 91 |
| creator | Otobe, Haruyoshi Akabori, Mitsuo Minato, Kazuo |
| description | The oxygen potentials of AmO2−x were measured in the x range of 0.01–0.5 and the temperature range of 1000–1333 K by the electromotive force method. The oxygen potentials at 1333 K were −19.83 kJ/mol for x=0.019 and −319.1 kJ/mol for x=0.485, which were higher than those of CeO2−x by approximately 200 kJ/mol for the corresponding x values. From the dependence of the oxygen potentials on x and temperature, a tentative phase diagram of Am–O system was proposed, which suggested the presence of the intermediate phases of Am7O12 and Am9O16 in the Am–O system. |
| doi_str_mv | 10.1111/j.1551-2916.2008.02374.x |
| format | Article |
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The oxygen potentials at 1333 K were −19.83 kJ/mol for x=0.019 and −319.1 kJ/mol for x=0.485, which were higher than those of CeO2−x by approximately 200 kJ/mol for the corresponding x values. From the dependence of the oxygen potentials on x and temperature, a tentative phase diagram of Am–O system was proposed, which suggested the presence of the intermediate phases of Am7O12 and Am9O16 in the Am–O system.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/j.1551-2916.2008.02374.x</identifier><identifier>CODEN: JACTAW</identifier><language>eng</language><publisher>Malden, USA: Blackwell Publishing Inc</publisher><subject>Americium ; Applied sciences ; Ceramics ; Electric potential ; Energy ; Exact sciences and technology ; Fuels ; Materials science ; Measurement ; Nuclear fuels ; Oxides ; Oxygen ; Phase diagrams ; Phase transitions ; Pollution ; Preparation and processing of nuclear fuels ; Radioactive wastes ; Wastes</subject><ispartof>Journal of the American Ceramic Society, 2008-06, Vol.91 (6), p.1981-1985</ispartof><rights>2008 The American Ceramic Society</rights><rights>2008 INIST-CNRS</rights><rights>Copyright American Ceramic Society Jun 2008</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4744-8f68201851ede00c02dbc21d821adfbdd4934cb14a89d59fc0b314b117eb31513</citedby><cites>FETCH-LOGICAL-c4744-8f68201851ede00c02dbc21d821adfbdd4934cb14a89d59fc0b314b117eb31513</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1551-2916.2008.02374.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20452246$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Otobe, Haruyoshi</creatorcontrib><creatorcontrib>Akabori, Mitsuo</creatorcontrib><creatorcontrib>Minato, Kazuo</creatorcontrib><title>Oxygen Potential Measurement of Americium Oxide by Electromotive Force Method</title><title>Journal of the American Ceramic Society</title><description>The oxygen potentials of AmO2−x were measured in the x range of 0.01–0.5 and the temperature range of 1000–1333 K by the electromotive force method. The oxygen potentials at 1333 K were −19.83 kJ/mol for x=0.019 and −319.1 kJ/mol for x=0.485, which were higher than those of CeO2−x by approximately 200 kJ/mol for the corresponding x values. From the dependence of the oxygen potentials on x and temperature, a tentative phase diagram of Am–O system was proposed, which suggested the presence of the intermediate phases of Am7O12 and Am9O16 in the Am–O system.</description><subject>Americium</subject><subject>Applied sciences</subject><subject>Ceramics</subject><subject>Electric potential</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>Fuels</subject><subject>Materials science</subject><subject>Measurement</subject><subject>Nuclear fuels</subject><subject>Oxides</subject><subject>Oxygen</subject><subject>Phase diagrams</subject><subject>Phase transitions</subject><subject>Pollution</subject><subject>Preparation and processing of nuclear fuels</subject><subject>Radioactive wastes</subject><subject>Wastes</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqNkU2P0zAQQC0EEmXhP1hIIC4J_mycE6pKd6HapSsBCzfLcSbgksSLnUD673G2qx44IHzxjPzmaTyDEKYkp-m83udUSpqxki5zRojKCeOFyKcHaHF6eIgWhBCWFYqRx-hJjPuU0lKJBbraTYdv0ONrP0A_ONPiKzBxDNClFPsGrzoIzrqxw7vJ1YCrA960YIfgOz-4X4DPfbCQqobvvn6KHjWmjfDs_j5Dn883n9bvssvdxfv16jKzohAiU80ydUKVpFADIZawurKM1opRUzdVXYuSC1tRYVRZy7KxpOJUVJQWkAJJ-Rl6efTeBv9zhDjozkULbWt68GPUXLKCc14k8NU_QUoUS51wwRP6_C9078fQp29oRgtVSs5mnzpCNvgYAzT6NrjOhEMy6Xkfeq_nset57Hreh77bh55S6Yt7v4nWtE0wvXXxVM-IkIyJZeLeHLnfroXDf_v1drXe3MXJkB0NLg4wnQwm_NDLghdSf_lwobdvb7Yfv17faM7_AEUUrBI</recordid><startdate>200806</startdate><enddate>200806</enddate><creator>Otobe, Haruyoshi</creator><creator>Akabori, Mitsuo</creator><creator>Minato, Kazuo</creator><general>Blackwell Publishing Inc</general><general>Blackwell</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>200806</creationdate><title>Oxygen Potential Measurement of Americium Oxide by Electromotive Force Method</title><author>Otobe, Haruyoshi ; Akabori, Mitsuo ; Minato, Kazuo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4744-8f68201851ede00c02dbc21d821adfbdd4934cb14a89d59fc0b314b117eb31513</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Americium</topic><topic>Applied sciences</topic><topic>Ceramics</topic><topic>Electric potential</topic><topic>Energy</topic><topic>Exact sciences and technology</topic><topic>Fuels</topic><topic>Materials science</topic><topic>Measurement</topic><topic>Nuclear fuels</topic><topic>Oxides</topic><topic>Oxygen</topic><topic>Phase diagrams</topic><topic>Phase transitions</topic><topic>Pollution</topic><topic>Preparation and processing of nuclear fuels</topic><topic>Radioactive wastes</topic><topic>Wastes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Otobe, Haruyoshi</creatorcontrib><creatorcontrib>Akabori, Mitsuo</creatorcontrib><creatorcontrib>Minato, Kazuo</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</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>Otobe, Haruyoshi</au><au>Akabori, Mitsuo</au><au>Minato, Kazuo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Oxygen Potential Measurement of Americium Oxide by Electromotive Force Method</atitle><jtitle>Journal of the American Ceramic Society</jtitle><date>2008-06</date><risdate>2008</risdate><volume>91</volume><issue>6</issue><spage>1981</spage><epage>1985</epage><pages>1981-1985</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><coden>JACTAW</coden><abstract>The oxygen potentials of AmO2−x were measured in the x range of 0.01–0.5 and the temperature range of 1000–1333 K by the electromotive force method. The oxygen potentials at 1333 K were −19.83 kJ/mol for x=0.019 and −319.1 kJ/mol for x=0.485, which were higher than those of CeO2−x by approximately 200 kJ/mol for the corresponding x values. From the dependence of the oxygen potentials on x and temperature, a tentative phase diagram of Am–O system was proposed, which suggested the presence of the intermediate phases of Am7O12 and Am9O16 in the Am–O system.</abstract><cop>Malden, USA</cop><pub>Blackwell Publishing Inc</pub><doi>10.1111/j.1551-2916.2008.02374.x</doi><tpages>5</tpages></addata></record> |
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| subjects | Americium Applied sciences Ceramics Electric potential Energy Exact sciences and technology Fuels Materials science Measurement Nuclear fuels Oxides Oxygen Phase diagrams Phase transitions Pollution Preparation and processing of nuclear fuels Radioactive wastes Wastes |
| title | Oxygen Potential Measurement of Americium Oxide by Electromotive Force Method |
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