{"created":"2021-03-01T06:07:58.807914+00:00","id":4191,"links":{},"metadata":{"_buckets":{"deposit":"20d6453c-b1d2-4de2-9529-401199651c29"},"_deposit":{"id":"4191","owners":[],"pid":{"revision_id":0,"type":"depid","value":"4191"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00004191","sets":["423:424:425","453:454"]},"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Solid State Reaction between Nb_2O_5 and CaO"}]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1981-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"5","bibliographicPageStart":"1","bibliographicVolumeNumber":"89","bibliographic_titles":[{"bibliographic_title":"窯業協會誌"},{"bibliographic_title":"窯業協會誌","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Nb_2O_5 焼結体と CaO 焼結体とを重ね合わせて拡散対とし，Arガスふん囲気中1150°〜1300℃で加熱してNb_2O_5-CaO系固相反応を調べた.生成する反応層を電子顕微鏡観察，X線マイクロアナライザー分析，X線回折及び熱膨張測定し，次のような結果を得た.Nb_2O_5層とCaO層の境界面において，1150℃と1200℃の温度でCaO・Nb_2O_5，2CaO・Nb_2O_5，立方晶3CaO・Nb_2O_5と斜方晶系化合物2相共存する層，計3種類の反応層が生成し，1250℃と1300℃の温度でCaO・Nb_2O，2CaO・Nb_2O_5，立方晶3CaO・Nb_2O_5，立方晶3CaO・Nb_2O_5と斜方晶系化合物2相共存する層，計4種類の反応層が生成した.これらはNb_2O_5中へのCaOの一方拡散により生じた.生成した反応層の幅の大きさは，2相共存層>3CaO・Nb_2O_5>2CaO・Nb_2O_5>CaO・Nb_2O_5，の順であった.この斜方晶系化合物は4CaO・Nb_2O_5よりもCaO成分か多い組成を有していると考えられた.また1150°〜1300℃の温度ではこの斜方晶系化合物よりもCaO成分の多い化合物は存在しなかった.","subitem_description_type":"Abstract"},{"subitem_description":"Solid state reactions between sintered Nb205 and CaO have been studied in Ar at the temperature range from 1150℃ to 1300℃. The reaction layers formed at the Nb_2O_5-CaO interface were examined by using electron microscopy, EPMA, X-ray diffraction and dilatometry. The following results were obtained. At 1150℃ and 1200℃, three layers (CaO・Nb_2O_5・2CaO・Nb_2O_5 and a phase mixture of cubic 3 CaO・Nb_2O_5 and orthorhombic compound) and at 1250℃ and 1300℃, four layers (CaO・Nb_2O_5・2 CaO・Nb_2O_5 cubic 3 CaO・Nb_2O_5 and a phase mixture of cubic 3 CaO・Nb_2O_5 and orthorhombic compound) were formed. These results indicated that the one-way diffusion of CaO into Nb_2O_5 occurred. The order in width of the reaction layer was the phase mixture, cubic 3 CaO・Nb_2O_5, 2 CaO・Nb_2O_5 and CaO・Nb_2O_5. The orthorhombic compound was richer in CaO content than 4 CaO・Nb_O_5. No compound richer in CaO content than orthorhombic compound was found in the temperature range ll50℃ to 1300℃.","subitem_description_type":"Abstract"}]},"item_5_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"47999","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Hotta, Noriyasu"}]},{"nameIdentifiers":[{"nameIdentifier":"48000","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Hasegawa, Minoru"}]},{"nameIdentifiers":[{"nameIdentifier":"48001","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Maeda, Hiroyuki"}]},{"nameIdentifiers":[{"nameIdentifier":"48002","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Matsuo, Shigetomo"}]}]},"item_5_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"窯業協会"}]},"item_5_relation_31":{"attribute_name":"異版である","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"http://ci.nii.ac.jp/naid/110002316354","subitem_relation_type_select":"URI"}}]},"item_5_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"日本セラミックス協会"},{"subitem_rights":"本文データは学協会の許諾に基づきCiNiiから複製したものである"}]},"item_5_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00245650","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00090255","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"堀田, 憲康"}],"nameIdentifiers":[{"nameIdentifier":"47995","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"長谷川, 実"}],"nameIdentifiers":[{"nameIdentifier":"47996","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"前田, 博之"}],"nameIdentifiers":[{"nameIdentifier":"47997","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松尾, 重友"}],"nameIdentifiers":[{"nameIdentifier":"47998","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-07-30"}],"displaytype":"detail","filename":"110002316354.pdf","filesize":[{"value":"670.6 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"110002316354.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/4191/files/110002316354.pdf"},"version_id":"fdc597b9-3ea9-4975-aa39-e6ec29b3d0db"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Niobium pentoxide (Nb_2O_5)","subitem_subject_scheme":"Other"},{"subitem_subject":"Calcium oxide (CaO)","subitem_subject_scheme":"Other"},{"subitem_subject":"solid state reaction","subitem_subject_scheme":"Other"},{"subitem_subject":"Reaction layer","subitem_subject_scheme":"Other"},{"subitem_subject":"One-way diffusion","subitem_subject_scheme":"Other"},{"subitem_subject":"Interface","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"Nb_2O_5-CaO 系の固相反応","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Nb_2O_5-CaO 系の固相反応"},{"subitem_title":"Nb_2O_5-CaO 系の固相反応","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["454","425"],"pubdate":{"attribute_name":"公開日","attribute_value":"2009-04-08"},"publish_date":"2009-04-08","publish_status":"0","recid":"4191","relation_version_is_last":true,"title":["Nb_2O_5-CaO 系の固相反応"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:37:12.502776+00:00"}