Effect of Gd2O3 Dispersion on the Thermal Conductivity of UO2
10 wt% Gd2O3-dispersed UO2 pellets, in which Gd2O3 particles are dispersed in UO2 matrix, were prepared, and the thermal conductivity was investigated. The Gd2O3-dispersed UO2 pellets consisted of Gd2O3, UO2, and a Gd-U-O phase that was formed by diffusion of U ions into Gd2O3 particles during the s...
Gespeichert in:
| Veröffentlicht in: | Journal of nuclear science and technology 2009-07, Vol.46 (7), p.673-676 |
|---|---|
| Hauptverfasser: | , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 676 |
|---|---|
| container_issue | 7 |
| container_start_page | 673 |
| container_title | Journal of nuclear science and technology |
| container_volume | 46 |
| creator | IWASAKI, Kouta MATSUI, Tsuneo YANAI, Koichi YUDA, Ryouichi ARITA, Yuji NAGASAKI, Takanori YOKOYAMA, Noboru TOKURA, Ichiro UNE, Katsumi HARADA, Kenichi |
| description | 10 wt% Gd2O3-dispersed UO2 pellets, in which Gd2O3 particles are dispersed in UO2 matrix, were prepared, and the thermal conductivity was investigated. The Gd2O3-dispersed UO2 pellets consisted of Gd2O3, UO2, and a Gd-U-O phase that was formed by diffusion of U ions into Gd2O3 particles during the sintering process. In addition, pores were mainly distributed at the boundary between the Gd2O3 particles and the UO2 matrix. The thermal conductivity of 10 wt% Gd2O3-dispersed UO2 decreased with temperature (5.8-2.7 W m-1K-1 from 300 to 1273 K) and was larger than that of (U,Gd)O2 solid solutions (3.8-2.6 W m-1K-1) with the same Gd2O3 content. The increase in the thermal conductivity by Gd2O3 dispersion was attributable to the reduction in phonon-point defect scattering in the UO2 matrix. Dispersion of Gd2O3 particles was effective in improving the thermal conductivity of Gd2O3-UO2 fuel pellets. |
| doi_str_mv | 10.3327/jnst.46.673 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_pasca</sourceid><recordid>TN_cdi_proquest_journals_1420222590</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>3044281841</sourcerecordid><originalsourceid>FETCH-LOGICAL-n276t-fad2348f90da0f1fa96c78b79d5ddad9d1e5ec461504f1a61f88af3678c237033</originalsourceid><addsrcrecordid>eNotj01Lw0AYhBdRsFZP_oGAeEzc993N7ubgQWKtQqGX9hzW_aAJaVJ3t0L_vSkWBoaBhxmGkEegBWMoX7ohpoKLQkh2RWagFOSAXF2TGaWIOQMGt-Quxm6Kggs1I68L751J2eizpcU1y97beHAhtuOQTUo7l212Lux1n9XjYI8mtb9tOp357RrvyY3XfXQPF5-T7cdiU3_mq_Xyq35b5QNKkXKvLTKufEWtph68roSR6ltWtrRW28qCK53hAkrKPWgBXintmZDKIJOUsTl5-u89hPHn6GJquvEYhmmyAY7TNSwrOlHPF0pHo3sf9GDa2BxCu9fh1CAoWmLF2R8X5lVU</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1420222590</pqid></control><display><type>article</type><title>Effect of Gd2O3 Dispersion on the Thermal Conductivity of UO2</title><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Alma/SFX Local Collection</source><source>Free Full-Text Journals in Chemistry</source><creator>IWASAKI, Kouta ; MATSUI, Tsuneo ; YANAI, Koichi ; YUDA, Ryouichi ; ARITA, Yuji ; NAGASAKI, Takanori ; YOKOYAMA, Noboru ; TOKURA, Ichiro ; UNE, Katsumi ; HARADA, Kenichi</creator><creatorcontrib>IWASAKI, Kouta ; MATSUI, Tsuneo ; YANAI, Koichi ; YUDA, Ryouichi ; ARITA, Yuji ; NAGASAKI, Takanori ; YOKOYAMA, Noboru ; TOKURA, Ichiro ; UNE, Katsumi ; HARADA, Kenichi</creatorcontrib><description>10 wt% Gd2O3-dispersed UO2 pellets, in which Gd2O3 particles are dispersed in UO2 matrix, were prepared, and the thermal conductivity was investigated. The Gd2O3-dispersed UO2 pellets consisted of Gd2O3, UO2, and a Gd-U-O phase that was formed by diffusion of U ions into Gd2O3 particles during the sintering process. In addition, pores were mainly distributed at the boundary between the Gd2O3 particles and the UO2 matrix. The thermal conductivity of 10 wt% Gd2O3-dispersed UO2 decreased with temperature (5.8-2.7 W m-1K-1 from 300 to 1273 K) and was larger than that of (U,Gd)O2 solid solutions (3.8-2.6 W m-1K-1) with the same Gd2O3 content. The increase in the thermal conductivity by Gd2O3 dispersion was attributable to the reduction in phonon-point defect scattering in the UO2 matrix. Dispersion of Gd2O3 particles was effective in improving the thermal conductivity of Gd2O3-UO2 fuel pellets.</description><identifier>ISSN: 0022-3131</identifier><identifier>EISSN: 1881-1248</identifier><identifier>DOI: 10.3327/jnst.46.673</identifier><identifier>CODEN: JNSTAX</identifier><language>eng</language><publisher>Tokyo: Atomic Energy Society of Japan</publisher><subject>Applied sciences ; Energy ; Exact sciences and technology ; Fuels ; Nuclear fuels ; Preparation and processing of nuclear fuels</subject><ispartof>Journal of nuclear science and technology, 2009-07, Vol.46 (7), p.673-676</ispartof><rights>2009 INIST-CNRS</rights><rights>Copyright Japan Science and Technology Agency 2009</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21805294$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>IWASAKI, Kouta</creatorcontrib><creatorcontrib>MATSUI, Tsuneo</creatorcontrib><creatorcontrib>YANAI, Koichi</creatorcontrib><creatorcontrib>YUDA, Ryouichi</creatorcontrib><creatorcontrib>ARITA, Yuji</creatorcontrib><creatorcontrib>NAGASAKI, Takanori</creatorcontrib><creatorcontrib>YOKOYAMA, Noboru</creatorcontrib><creatorcontrib>TOKURA, Ichiro</creatorcontrib><creatorcontrib>UNE, Katsumi</creatorcontrib><creatorcontrib>HARADA, Kenichi</creatorcontrib><title>Effect of Gd2O3 Dispersion on the Thermal Conductivity of UO2</title><title>Journal of nuclear science and technology</title><description>10 wt% Gd2O3-dispersed UO2 pellets, in which Gd2O3 particles are dispersed in UO2 matrix, were prepared, and the thermal conductivity was investigated. The Gd2O3-dispersed UO2 pellets consisted of Gd2O3, UO2, and a Gd-U-O phase that was formed by diffusion of U ions into Gd2O3 particles during the sintering process. In addition, pores were mainly distributed at the boundary between the Gd2O3 particles and the UO2 matrix. The thermal conductivity of 10 wt% Gd2O3-dispersed UO2 decreased with temperature (5.8-2.7 W m-1K-1 from 300 to 1273 K) and was larger than that of (U,Gd)O2 solid solutions (3.8-2.6 W m-1K-1) with the same Gd2O3 content. The increase in the thermal conductivity by Gd2O3 dispersion was attributable to the reduction in phonon-point defect scattering in the UO2 matrix. Dispersion of Gd2O3 particles was effective in improving the thermal conductivity of Gd2O3-UO2 fuel pellets.</description><subject>Applied sciences</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>Fuels</subject><subject>Nuclear fuels</subject><subject>Preparation and processing of nuclear fuels</subject><issn>0022-3131</issn><issn>1881-1248</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNotj01Lw0AYhBdRsFZP_oGAeEzc993N7ubgQWKtQqGX9hzW_aAJaVJ3t0L_vSkWBoaBhxmGkEegBWMoX7ohpoKLQkh2RWagFOSAXF2TGaWIOQMGt-Quxm6Kggs1I68L751J2eizpcU1y97beHAhtuOQTUo7l212Lux1n9XjYI8mtb9tOp357RrvyY3XfXQPF5-T7cdiU3_mq_Xyq35b5QNKkXKvLTKufEWtph68roSR6ltWtrRW28qCK53hAkrKPWgBXintmZDKIJOUsTl5-u89hPHn6GJquvEYhmmyAY7TNSwrOlHPF0pHo3sf9GDa2BxCu9fh1CAoWmLF2R8X5lVU</recordid><startdate>20090701</startdate><enddate>20090701</enddate><creator>IWASAKI, Kouta</creator><creator>MATSUI, Tsuneo</creator><creator>YANAI, Koichi</creator><creator>YUDA, Ryouichi</creator><creator>ARITA, Yuji</creator><creator>NAGASAKI, Takanori</creator><creator>YOKOYAMA, Noboru</creator><creator>TOKURA, Ichiro</creator><creator>UNE, Katsumi</creator><creator>HARADA, Kenichi</creator><general>Atomic Energy Society of Japan</general><general>Taylor & Francis Ltd</general><scope>IQODW</scope></search><sort><creationdate>20090701</creationdate><title>Effect of Gd2O3 Dispersion on the Thermal Conductivity of UO2</title><author>IWASAKI, Kouta ; MATSUI, Tsuneo ; YANAI, Koichi ; YUDA, Ryouichi ; ARITA, Yuji ; NAGASAKI, Takanori ; YOKOYAMA, Noboru ; TOKURA, Ichiro ; UNE, Katsumi ; HARADA, Kenichi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-n276t-fad2348f90da0f1fa96c78b79d5ddad9d1e5ec461504f1a61f88af3678c237033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Energy</topic><topic>Exact sciences and technology</topic><topic>Fuels</topic><topic>Nuclear fuels</topic><topic>Preparation and processing of nuclear fuels</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>IWASAKI, Kouta</creatorcontrib><creatorcontrib>MATSUI, Tsuneo</creatorcontrib><creatorcontrib>YANAI, Koichi</creatorcontrib><creatorcontrib>YUDA, Ryouichi</creatorcontrib><creatorcontrib>ARITA, Yuji</creatorcontrib><creatorcontrib>NAGASAKI, Takanori</creatorcontrib><creatorcontrib>YOKOYAMA, Noboru</creatorcontrib><creatorcontrib>TOKURA, Ichiro</creatorcontrib><creatorcontrib>UNE, Katsumi</creatorcontrib><creatorcontrib>HARADA, Kenichi</creatorcontrib><collection>Pascal-Francis</collection><jtitle>Journal of nuclear science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>IWASAKI, Kouta</au><au>MATSUI, Tsuneo</au><au>YANAI, Koichi</au><au>YUDA, Ryouichi</au><au>ARITA, Yuji</au><au>NAGASAKI, Takanori</au><au>YOKOYAMA, Noboru</au><au>TOKURA, Ichiro</au><au>UNE, Katsumi</au><au>HARADA, Kenichi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Gd2O3 Dispersion on the Thermal Conductivity of UO2</atitle><jtitle>Journal of nuclear science and technology</jtitle><date>2009-07-01</date><risdate>2009</risdate><volume>46</volume><issue>7</issue><spage>673</spage><epage>676</epage><pages>673-676</pages><issn>0022-3131</issn><eissn>1881-1248</eissn><coden>JNSTAX</coden><abstract>10 wt% Gd2O3-dispersed UO2 pellets, in which Gd2O3 particles are dispersed in UO2 matrix, were prepared, and the thermal conductivity was investigated. The Gd2O3-dispersed UO2 pellets consisted of Gd2O3, UO2, and a Gd-U-O phase that was formed by diffusion of U ions into Gd2O3 particles during the sintering process. In addition, pores were mainly distributed at the boundary between the Gd2O3 particles and the UO2 matrix. The thermal conductivity of 10 wt% Gd2O3-dispersed UO2 decreased with temperature (5.8-2.7 W m-1K-1 from 300 to 1273 K) and was larger than that of (U,Gd)O2 solid solutions (3.8-2.6 W m-1K-1) with the same Gd2O3 content. The increase in the thermal conductivity by Gd2O3 dispersion was attributable to the reduction in phonon-point defect scattering in the UO2 matrix. Dispersion of Gd2O3 particles was effective in improving the thermal conductivity of Gd2O3-UO2 fuel pellets.</abstract><cop>Tokyo</cop><pub>Atomic Energy Society of Japan</pub><doi>10.3327/jnst.46.673</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-3131 |
| ispartof | Journal of nuclear science and technology, 2009-07, Vol.46 (7), p.673-676 |
| issn | 0022-3131 1881-1248 |
| language | eng |
| recordid | cdi_proquest_journals_1420222590 |
| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry |
| subjects | Applied sciences Energy Exact sciences and technology Fuels Nuclear fuels Preparation and processing of nuclear fuels |
| title | Effect of Gd2O3 Dispersion on the Thermal Conductivity of UO2 |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-21T00%3A49%3A58IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_pasca&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Effect%20of%20Gd2O3%20Dispersion%20on%20the%20Thermal%20Conductivity%20of%20UO2&rft.jtitle=Journal%20of%20nuclear%20science%20and%20technology&rft.au=IWASAKI,%20Kouta&rft.date=2009-07-01&rft.volume=46&rft.issue=7&rft.spage=673&rft.epage=676&rft.pages=673-676&rft.issn=0022-3131&rft.eissn=1881-1248&rft.coden=JNSTAX&rft_id=info:doi/10.3327/jnst.46.673&rft_dat=%3Cproquest_pasca%3E3044281841%3C/proquest_pasca%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1420222590&rft_id=info:pmid/&rfr_iscdi=true |