{"created":"2023-05-15T15:02:38.430795+00:00","id":84931,"links":{},"metadata":{"_buckets":{"deposit":"160d6b48-4816-472c-8781-5f2836f6b062"},"_deposit":{"created_by":1,"id":"84931","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"84931"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00084931","sets":["1"]},"author_link":["1024268","1024275","1024267","1024271","1024274","1024265","1024269","1024264","1024273","1024266","1024270","1024272"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-11","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"153422","bibliographicVolumeNumber":"559","bibliographic_titles":[{"bibliographic_title":"Journal of Nuclear Materials"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Characterization of the fuel debris has been required for decommissioning Fukushima Daiichi Nuclear Power Station. To understand the reaction mechanisms involved for mixed UO 2 –ZrO 2 compounds, these materials were treated at high temperatures (1473 to 1873 K) under oxidizing, inert, and reducing atmo- spheres. The reaction products were analysed by a combination of powder X-ray diffraction (PXRD) and X-ray absorption spectroscopic measurements of the U L III - and Zr K-edges. Principal component analysis of the X-ray absorption near edge structure and extended X-ray absorption fine structure of U L III - and Zr K-edges provided a breakdown of the composition of each species within the products, these results were further supported by PXRD. Under an oxidizing atmosphere, the formation of U 3 O 8 and U 2 Zr 5 O 15 was observed in equilibrium with UO 2 , monoclinic-ZrO 2 , and tetragonal-ZrO 2 . However, when O 2 gas was purged through the reaction tube during the cooling process to room temperature, pentavalent U in ZrU 2 O 7 was produced by the oxidation of solid solution UO 2 formed at > 1774 K during the tempera- ture dropped at < 1473 K. Under the inert atmosphere, mixed oxides of uranium were found to form at > 1673 K due to a low concentration of O 2 impurity with the Ar gas. Although the oxidized UO 2 was able to form in such a system, tetravalent UO 2 and its solid solution were instead present throughout the whole temperature range examined under a reducing atmosphere (H 2 gas). This study can pave the way for understanding the interaction between the nuclear fuels and the cladding materials in damaged reactors enabling further simulation of possible decontamination procedures.","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.jnucmat.2021.153422","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://www.sciencedirect.com/science/article/pii/S0022311521006425","subitem_relation_type_select":"URI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0022-3115","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Akihiro, Uehara"}],"nameIdentifiers":[{"nameIdentifier":"1024264","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Daisuke, Akiyama"}],"nameIdentifiers":[{"nameIdentifier":"1024265","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ikeda-Ohno, Atsushi"}],"nameIdentifiers":[{"nameIdentifier":"1024266","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Chiya, Numako"}],"nameIdentifiers":[{"nameIdentifier":"1024267","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yasuko, Terada"}],"nameIdentifiers":[{"nameIdentifier":"1024268","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kiyofumi, Nitta"}],"nameIdentifiers":[{"nameIdentifier":"1024269","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Toshiaki, Ina"}],"nameIdentifiers":[{"nameIdentifier":"1024270","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shino, Takeda"}],"nameIdentifiers":[{"nameIdentifier":"1024271","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Akira, Kirishima"}],"nameIdentifiers":[{"nameIdentifier":"1024272","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nobuaki, Sato"}],"nameIdentifiers":[{"nameIdentifier":"1024273","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Akihiro, Uehara","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1024274","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shino, Takeda","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1024275","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Speciation on the reaction of uranium and zirconium oxides treated under oxidizing and reducing atmospheres","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Speciation on the reaction of uranium and zirconium oxides treated under oxidizing and reducing atmospheres"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-01-12"},"publish_date":"2022-01-12","publish_status":"0","recid":"84931","relation_version_is_last":true,"title":["Speciation on the reaction of uranium and zirconium oxides treated under oxidizing and reducing atmospheres"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T18:06:40.771978+00:00"}