{"created":"2023-07-27T06:26:23.610591+00:00","id":10086,"links":{},"metadata":{"_buckets":{"deposit":"fed04184-0475-4b1f-bc33-b65acdbaea85"},"_deposit":{"created_by":3,"id":"10086","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"10086"},"status":"published"},"_oai":{"id":"oai:kanazawa-u.repo.nii.ac.jp:00010086","sets":["934:935:936"]},"author_link":["14937","14940","14939","14938"],"item_4_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1992-07-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1163","bibliographicPageEnd":"923","bibliographicPageStart":"918","bibliographicVolumeNumber":"100","bibliographic_titles":[{"bibliographic_title":"Journal of the Ceramic Society of Japan"}]}]},"item_4_description_21":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In a permeable MgO ceramic containing TiO_2 and Al_2O_3 as matrix MgO ・ Al_2O_3-2MgO・TiO_2 solid solutions were detected and no Al_2O_3・TiO_2 was observed. Therefore, the solid state reaction among MgO, TiO_2 and Al_2O_3 with excess MgO was studied at various firing temperatures. The formation mechanism of MgO・Al_2O_3-2MgO・TiO_2 solid solutions was studied from the results of interface reactions between MgO-TiO_2 and MgO-Al_2O_3. MgO・Al_2O_3-2MgO・TiO_2 solid solutions were detected at 1573-1673 K and increased with the firing temperature. 2MgO・TiO_2 was formed in the system MgO-TiO_2, but was not produced in the system MgO-TiO_2-Al_2O_3, because the amount of Mg diffusion at the interface of aggregate and matrix additives was not enough due to the large aggregate size of MgO. MgO・Al_2O_3 and 2MgO・TiO_2 formed at the interface between MgO-TiO_2 and MgO-Al_2O_3 decreased with the firing time at 1873 K. On the other hand, MgO・Al_2O_3-2MgO・TiO_2 solid solutions increased. Mg was recognized in the matrix without addition of MgO as a matrix. Al diffused in the layer of MgO-TiO_2, in opposition Ti diffused in the layer of MgO-Al_2O_3 by EPMA analysis. From the above results, the formation mechanism of a MgO・Al_2O_3-2MgO・TiO_2 solid solution was proposed; (1) Mg diffusion at the interface of MgO aggregate and matrix additives, (2) formation of MgO・TiO_2 and MgO・Al_2O_3, (3) formation of 2MgO・TiO_2 due to the reaction with MgO・TiO_2 and MgO, (4) reaction of the solid solution with MgO・Al_2O_3 and 2MgO・TiO_2. In the reactions between MgO・TiO2 and MgO-Al_2O_3 the product layer of MgO・Al_2O_3-2MgO・TiO_2 solid solution increased as the firing time increased. The diffusion coefficient of Mg was about 4.8×10^<-7>(cm^2/s), in a good agreement with that of Mg which was reported.","subitem_description_type":"Abstract"}]},"item_4_publisher_17":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"The Ceramic Society of Japan"}]},"item_4_relation_28":{"attribute_name":"関連URI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://ci.nii.ac.jp/naid/110002291758/en/","subitem_relation_type_select":"URI"}}]},"item_4_source_id_11":{"attribute_name":"NCID","attribute_value_mlt":[{"subitem_source_identifier":"AN10040326","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0914-5400","subitem_source_identifier_type":"ISSN"}]},"item_4_version_type_25":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"土成, 昭弘"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"保木井, 利之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"下林, 修"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"金岡, 千嘉男"}],"nameIdentifiers":[{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-10-03"}],"displaytype":"detail","filename":"TE-PR-KANAOKA-C-918.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"TE-PR-KANAOKA-C-918.pdf","url":"https://kanazawa-u.repo.nii.ac.jp/record/10086/files/TE-PR-KANAOKA-C-918.pdf"},"version_id":"182b94d1-ecb4-4218-8946-4835a310c633"}]},"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":"過剰MgO域におけるMgO-TiO_2-Al_2O_3系の固体反応","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"過剰MgO域におけるMgO-TiO_2-Al_2O_3系の固体反応"},{"subitem_title":"Solid Reaction in the MgO Excess Region of the System MgO-TiO_2-Al_2O_3","subitem_title_language":"en"}]},"item_type_id":"4","owner":"3","path":["936"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-10-03"},"publish_date":"2017-10-03","publish_status":"0","recid":"10086","relation_version_is_last":true,"title":["過剰MgO域におけるMgO-TiO_2-Al_2O_3系の固体反応"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-07-28T01:43:51.652182+00:00"}