{"created":"2023-05-15T14:57:08.893890+00:00","id":77550,"links":{},"metadata":{"_buckets":{"deposit":"8cfe8343-dc94-431d-b07f-2b426b68715a"},"_deposit":{"created_by":1,"id":"77550","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"77550"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00077550","sets":["1"]},"author_link":["1001943","1001942","1001944","1001941"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-11","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"2461","bibliographicPageStart":"2454","bibliographicVolumeNumber":"55","bibliographic_titles":[{"bibliographic_title":"Journal of Materials Science"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Beryllium and beryllium intermetallic compound (beryllide) pebbles have been\nregarded as a neutron multiplier in an international thermonuclear experimental\nreactor (ITER), as well as a demonstration (DEMO) fusion reactor.A novel fabrication\nprocess of the beryllide pebbles has been successfully established by\ncombining the plasma sintering and rotating electrode processes. However,\nowing to the brittleness of beryllides, their granulation yield is approximately\n70%, which does not generally satisfy the requirement, whereas the fragments\n(designated to be not spherical) with 30% are generated as by-products. To\nimprove the granulation yield and in considering a new recycling process, a novel\nstep on fundamental experiments was adopted to confirm feasibility on the\nrecycling process using the same plasma sintering and rotating electrode processes.\nBecause the formation of oxidized surface and neutron-induced defects in\nthese materials is anticipated, these defects should be eliminated during the\nrecycling process. The plasma sintering process is known to remove impurities on\npowder surfaces by applying a pulse current, whereas the rotating electrode\nprocess (REP) is a granulation process that uses arc melting at a temperature\nhigher than the melting point. Hence, a feasibility test on the recycling process\nwas performed by applying this process with the fragments for the pebbles\nsimulated as the used pebbles. In the case of mixture ratios of 1:1 and 2:1 for the\nmixed powders and fragments, respectively, and the powders pulverized by\n100% fragments, the rods produced through plasma sintering were successfully\nfabricated even if several areas with low density are identified. Not all rods were\nbroken during the REP, indicating granulation results with similar size distribution\nand yield. Regarding the oxygen contents of as-received pebbles, fragments,\nand rod and pebbles produced with 100% fragments, the plasma sintering\neffect on impurity cleaning is therefore not significant, whereas the REP evidently\nleads to remarkable reduction of oxygen as impurity.","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Springer"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1007/s10853-019-04213-0","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://link.springer.com/article/10.1007/s10853-019-04213-0?wt_mc=Internal.Event.1.SEM.ArticleAuthorOnlineFirst&utm_source=ArticleAuthorOnlineFirst&utm_medium=email&utm_content=AA_en_06082018&ArticleAuthorOnlineFirst_20191121","subitem_relation_type_select":"URI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0361-5235","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":"Kim, Jaehwan"}],"nameIdentifiers":[{"nameIdentifier":"1001941","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nakamichi, Masaru"}],"nameIdentifiers":[{"nameIdentifier":"1001942","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kim, Jaehwan","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1001943","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Masaru, Nakamichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1001944","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":"Optimization on producibility improvement and the recycling process of neutron multipliers for fusion applications","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Optimization on producibility improvement and the recycling process of neutron multipliers for fusion applications"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-11-21"},"publish_date":"2019-11-21","publish_status":"0","recid":"77550","relation_version_is_last":true,"title":["Optimization on producibility improvement and the recycling process of neutron multipliers for fusion applications"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:35:55.483860+00:00"}