Thermal diffusivity and conductivity of thorium–plutonium mixed oxides
The thermal diffusivity of (Th, Pu)O 2 (with 3, 8 and 30 wt.% PuO 2) mixed oxides and of the single oxides PuO 2 and ThO 2 was measured using the laser flash technique. In several samples, a further degradation in the thermal diffusivity due to auto-irradiation damage was noted, and a recovery could...
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| Veröffentlicht in: | Journal of nuclear materials 2011-09, Vol.416 (1), p.135-141 |
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| container_title | Journal of nuclear materials |
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| creator | Cozzo, C. Staicu, D. Somers, J. Fernandez, A. Konings, R.J.M. |
| description | The thermal diffusivity of (Th,
Pu)O
2 (with 3, 8 and 30
wt.% PuO
2) mixed oxides and of the single oxides PuO
2 and ThO
2 was measured using the laser flash technique. In several samples, a further degradation in the thermal diffusivity due to auto-irradiation damage was noted, and a recovery could be achieved by thermal treatment. The ThO
2 and (Th,
Pu)O
2 samples with 3 and 8
wt.% PuO
2 were found to be semitransparent and had to be coated with C for the thermal diffusivity measurement. The experimental thermal conductivity of the fuels was calculated and analysed. The introduction of PuO
2 in the ThO
2 was found to have an effect similar to that observed in (U,
Pu)O
2 mixed oxides: small decrease in the range 3–8
wt.% PuO
2 and higher decrease at 30
wt.% PuO
2 content. Using the classical phonon transport model in crystal structures, a new correlation for the thermal conductivity of (Th,
Pu)O
2 mixed oxides is proposed and is compared to the results of another correlation built after the Klemens–Callaway theory. |
| doi_str_mv | 10.1016/j.jnucmat.2011.01.109 |
| format | Article |
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Pu)O
2 (with 3, 8 and 30
wt.% PuO
2) mixed oxides and of the single oxides PuO
2 and ThO
2 was measured using the laser flash technique. In several samples, a further degradation in the thermal diffusivity due to auto-irradiation damage was noted, and a recovery could be achieved by thermal treatment. The ThO
2 and (Th,
Pu)O
2 samples with 3 and 8
wt.% PuO
2 were found to be semitransparent and had to be coated with C for the thermal diffusivity measurement. The experimental thermal conductivity of the fuels was calculated and analysed. The introduction of PuO
2 in the ThO
2 was found to have an effect similar to that observed in (U,
Pu)O
2 mixed oxides: small decrease in the range 3–8
wt.% PuO
2 and higher decrease at 30
wt.% PuO
2 content. Using the classical phonon transport model in crystal structures, a new correlation for the thermal conductivity of (Th,
Pu)O
2 mixed oxides is proposed and is compared to the results of another correlation built after the Klemens–Callaway theory.</description><identifier>ISSN: 0022-3115</identifier><identifier>EISSN: 1873-4820</identifier><identifier>DOI: 10.1016/j.jnucmat.2011.01.109</identifier><identifier>CODEN: JNUMAM</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Controled nuclear fusion plants ; Energy ; Energy. Thermal use of fuels ; Exact sciences and technology ; Fission nuclear power plants ; Fuels ; Installations for energy generation and conversion: thermal and electrical energy ; Nuclear fuels</subject><ispartof>Journal of nuclear materials, 2011-09, Vol.416 (1), p.135-141</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c438t-1867e9a55c6affd8bbb7a00c2feb775ae53c1d8e20d77f9d8656721d8a68c0553</citedby><cites>FETCH-LOGICAL-c438t-1867e9a55c6affd8bbb7a00c2feb775ae53c1d8e20d77f9d8656721d8a68c0553</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0022311511001577$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,776,780,785,786,3536,23910,23911,25119,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24619648$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Cozzo, C.</creatorcontrib><creatorcontrib>Staicu, D.</creatorcontrib><creatorcontrib>Somers, J.</creatorcontrib><creatorcontrib>Fernandez, A.</creatorcontrib><creatorcontrib>Konings, R.J.M.</creatorcontrib><title>Thermal diffusivity and conductivity of thorium–plutonium mixed oxides</title><title>Journal of nuclear materials</title><description>The thermal diffusivity of (Th,
Pu)O
2 (with 3, 8 and 30
wt.% PuO
2) mixed oxides and of the single oxides PuO
2 and ThO
2 was measured using the laser flash technique. In several samples, a further degradation in the thermal diffusivity due to auto-irradiation damage was noted, and a recovery could be achieved by thermal treatment. The ThO
2 and (Th,
Pu)O
2 samples with 3 and 8
wt.% PuO
2 were found to be semitransparent and had to be coated with C for the thermal diffusivity measurement. The experimental thermal conductivity of the fuels was calculated and analysed. The introduction of PuO
2 in the ThO
2 was found to have an effect similar to that observed in (U,
Pu)O
2 mixed oxides: small decrease in the range 3–8
wt.% PuO
2 and higher decrease at 30
wt.% PuO
2 content. Using the classical phonon transport model in crystal structures, a new correlation for the thermal conductivity of (Th,
Pu)O
2 mixed oxides is proposed and is compared to the results of another correlation built after the Klemens–Callaway theory.</description><subject>Applied sciences</subject><subject>Controled nuclear fusion plants</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Exact sciences and technology</subject><subject>Fission nuclear power plants</subject><subject>Fuels</subject><subject>Installations for energy generation and conversion: thermal and electrical energy</subject><subject>Nuclear fuels</subject><issn>0022-3115</issn><issn>1873-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkMFKAzEQhoMoWKuPIOxF8LJ1srvJZk8iRa1Q8FLPIU0mNGV3U5Pd0t58B9_QJ3FLi1dPM_x8__zMT8gthQkFyh_Wk3Xb60Z1kwwonQAd5OqMjKgo87QQGZyTEUCWpTml7JJcxbgGAFYBG5HZYoWhUXVinLV9dFvX7RPVmkT71vS6OwreJt3KB9c3P1_fm7rvfDvsSeN2aBK_cwbjNbmwqo54c5pj8vHyvJjO0vn769v0aZ7qIhddSgUvsVKMaa6sNWK5XJYKQGcWl2XJFLJcUyMwA1OWtjKCM15mg6K40MBYPib3x7ub4D97jJ1sXNRY16pF30dJ86IqOK9yOqDsiOrgYwxo5Sa4RoW9pCAPzcm1PDUnD81JoINcDb67U4SKWtU2qFa7-GfOCk4rXoiBezxyOPy7dRhk1A5bjcYF1J003v2T9Asih4lA</recordid><startdate>20110901</startdate><enddate>20110901</enddate><creator>Cozzo, C.</creator><creator>Staicu, D.</creator><creator>Somers, J.</creator><creator>Fernandez, A.</creator><creator>Konings, R.J.M.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>20110901</creationdate><title>Thermal diffusivity and conductivity of thorium–plutonium mixed oxides</title><author>Cozzo, C. ; Staicu, D. ; Somers, J. ; Fernandez, A. ; Konings, R.J.M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c438t-1867e9a55c6affd8bbb7a00c2feb775ae53c1d8e20d77f9d8656721d8a68c0553</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Applied sciences</topic><topic>Controled nuclear fusion plants</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Exact sciences and technology</topic><topic>Fission nuclear power plants</topic><topic>Fuels</topic><topic>Installations for energy generation and conversion: thermal and electrical energy</topic><topic>Nuclear fuels</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cozzo, C.</creatorcontrib><creatorcontrib>Staicu, D.</creatorcontrib><creatorcontrib>Somers, J.</creatorcontrib><creatorcontrib>Fernandez, A.</creatorcontrib><creatorcontrib>Konings, R.J.M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Journal of nuclear materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cozzo, C.</au><au>Staicu, D.</au><au>Somers, J.</au><au>Fernandez, A.</au><au>Konings, R.J.M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal diffusivity and conductivity of thorium–plutonium mixed oxides</atitle><jtitle>Journal of nuclear materials</jtitle><date>2011-09-01</date><risdate>2011</risdate><volume>416</volume><issue>1</issue><spage>135</spage><epage>141</epage><pages>135-141</pages><issn>0022-3115</issn><eissn>1873-4820</eissn><coden>JNUMAM</coden><abstract>The thermal diffusivity of (Th,
Pu)O
2 (with 3, 8 and 30
wt.% PuO
2) mixed oxides and of the single oxides PuO
2 and ThO
2 was measured using the laser flash technique. In several samples, a further degradation in the thermal diffusivity due to auto-irradiation damage was noted, and a recovery could be achieved by thermal treatment. The ThO
2 and (Th,
Pu)O
2 samples with 3 and 8
wt.% PuO
2 were found to be semitransparent and had to be coated with C for the thermal diffusivity measurement. The experimental thermal conductivity of the fuels was calculated and analysed. The introduction of PuO
2 in the ThO
2 was found to have an effect similar to that observed in (U,
Pu)O
2 mixed oxides: small decrease in the range 3–8
wt.% PuO
2 and higher decrease at 30
wt.% PuO
2 content. Using the classical phonon transport model in crystal structures, a new correlation for the thermal conductivity of (Th,
Pu)O
2 mixed oxides is proposed and is compared to the results of another correlation built after the Klemens–Callaway theory.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jnucmat.2011.01.109</doi><tpages>7</tpages></addata></record> |
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| ispartof | Journal of nuclear materials, 2011-09, Vol.416 (1), p.135-141 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Controled nuclear fusion plants Energy Energy. Thermal use of fuels Exact sciences and technology Fission nuclear power plants Fuels Installations for energy generation and conversion: thermal and electrical energy Nuclear fuels |
| title | Thermal diffusivity and conductivity of thorium–plutonium mixed oxides |
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