{"_buckets": {"deposit": "5d951ba6-1dc7-4d95-8191-4880bf7e49cf"}, "_deposit": {"id": "12649", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "12649"}, "status": "published"}, "_oai": {"id": "oai:soar-ir.repo.nii.ac.jp:00012649", "sets": ["1222"]}, "author_link": ["38741", "38742", "38743", "38744", "38745"], "item_1628147817048": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_ab4af688f83e57aa", "subitem_version_type": "AM"}]}, "item_6_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2008-09", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "13", "bibliographicPageEnd": "2485", "bibliographicPageStart": "2479", "bibliographicVolumeNumber": "28", "bibliographic_titles": [{"bibliographic_title": "JOURNAL OF THE EUROPEAN CERAMIC SOCIETY"}]}]}, "item_6_description_30": {"attribute_name": "資源タイプ（コンテンツの種類）", "attribute_value_mlt": [{"subitem_description": "Article", "subitem_description_type": "Other"}]}, "item_6_description_31": {"attribute_name": "フォーマット：mimeタイプ", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_6_description_5": {"attribute_name": "引用", "attribute_value_mlt": [{"subitem_description": "JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. 28(13):2479-2485(2008)", "subitem_description_type": "Other"}]}, "item_6_link_3": {"attribute_name": "信州大学研究者総覧へのリンク", "attribute_value_mlt": [{"subitem_link_text": "Yamaguchi, T", "subitem_link_url": "http://soar-rd.shinshu-u.ac.jp/profile/ja.WVnVbpkh.html"}, {"subitem_link_text": "Taruta, S", "subitem_link_url": "http://soar-rd.shinshu-u.ac.jp/profile/ja.OacaZVkh.html"}]}, "item_6_link_67": {"attribute_name": "WoS", "attribute_value_mlt": [{"subitem_link_text": "Web of Science", "subitem_link_url": "http://gateway.isiknowledge.com/gateway/Gateway.cgi?\u0026GWVersion=2\u0026SrcAuth=ShinshuUniv\u0026SrcApp=ShinshuUniv\u0026DestLinkType=FullRecord\u0026DestApp=WOS\u0026KeyUT=000258432400006"}]}, "item_6_publisher_4": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "ELSEVIER SCI LTD"}]}, "item_6_relation_46": {"attribute_name": "他の資源との関係：URI", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "http://www.elsevier.com/wps/find/journaldescription.cws_home/405935/description#description"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://www.elsevier.com/wps/find/journaldescription.cws_home/405935/description#description", "subitem_relation_type_select": "URI"}}]}, "item_6_relation_48": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "10.1016/j.jeurceramsoc.2008.04.001"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.1016/j.jeurceramsoc.2008.04.001", "subitem_relation_type_select": "DOI"}}]}, "item_6_select_64": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "author"}]}, "item_6_source_id_35": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0955-2219", "subitem_source_identifier_type": "ISSN"}]}, "item_6_source_id_39": {"attribute_name": "NII ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0955-2219", "subitem_source_identifier_type": "ISSN"}]}, "item_6_source_id_40": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA10737208", "subitem_source_identifier_type": "NCID"}]}, "item_6_text_69": {"attribute_name": "wosonly authkey", "attribute_value_mlt": [{"subitem_text_value": "sintering; sol-gel process; grain size; Al2O3; Ca-doping"}]}, "item_6_text_70": {"attribute_name": "wosonly keywords", "attribute_value_mlt": [{"subitem_text_value": "SIZED ALPHA-ALUMINA; TRANSITION ALUMINA; GAMMA-ALUMINA; PHASE-TRANSFORMATION; GRAIN-GROWTH; SINTERING BEHAVIOR; POWDERS; STRENGTH; BOEHMITE; HYDROXIDE"}]}, "item_6_textarea_68": {"attribute_name": "wosonly abstract", "attribute_value_mlt": [{"subitem_textarea_value": "This paper demonstrates that the Ca-doped alumina nanopowders prepared by a new sol-gel route using polyhydoxoaluminum (PHA) and CaCl2 solutions under alpha-alumina seeding represent a viable option for producing fine-grained ceramics. Appropriate conditions for producing Ca-doped alumina nanopowders suitable for low-temperature finer grained densification were 0.10 mol% Ca-doping, 5 mass% alpha-alumina seeding and a calcination temperature of 900 degrees C. These conditions led to the formation of new nano-sized alumina powders, which consisted of similar to 80 rim alpha-alumina particles and gamma-alumina nanoparticles. Using these Ca-doped nanopowders, fully densified alumina ceramics with a uniform microstructure composed of fine grains with an average grain size of 0.66 mu m could be obtained at 1375 degrees C. Clearly, the Ca-doped nanopowders obtained here through the proposed sol-gel route are very suitable for fabricating dense, fine-grained alumina ceramics because an undoped sample with 5 mass% seeds led to a microstructure with an average grain size of 1.39 mu m at 1375 degrees C. (c) 2008 Elsevier Ltd. All rights reserved."}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Odaka,  A"}], "nameIdentifiers": [{"nameIdentifier": "38741", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Yamaguchi,  T"}], "nameIdentifiers": [{"nameIdentifier": "38742", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Fujita,  T"}], "nameIdentifiers": [{"nameIdentifier": "38743", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Taruta,  S"}], "nameIdentifiers": [{"nameIdentifier": "38744", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kitajima,  K"}], "nameIdentifiers": [{"nameIdentifier": "38745", "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": "2015-09-28"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "PA-S_frt_080222.pdf", "filesize": [{"value": "2.2 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 2200000.0, "url": {"label": "PA-S_frt_080222.pdf", "url": "https://soar-ir.repo.nii.ac.jp/record/12649/files/PA-S_frt_080222.pdf"}, "version_id": "ce3fd79e-ccc3-4b52-8154-baebfaa3333b"}]}, "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": "Densification of Ca-doped alumina nanopowders prepared by a new sol-gel route with seeding", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Densification of Ca-doped alumina nanopowders prepared by a new sol-gel route with seeding", "subitem_title_language": "en"}]}, "item_type_id": "6", "owner": "1", "path": ["1222"], "permalink_uri": "http://hdl.handle.net/10091/1164", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-09-24"}, "publish_date": "2008-09-24", "publish_status": "0", "recid": "12649", "relation": {}, "relation_version_is_last": true, "title": ["Densification of Ca-doped alumina nanopowders prepared by a new sol-gel route with seeding"], "weko_shared_id": -1}