{"created":"2023-05-15T16:40:55.879927+00:00","id":15387,"links":{},"metadata":{"_buckets":{"deposit":"0a8dfec1-2985-4b5c-91fd-d2f0004a1dcb"},"_deposit":{"created_by":2,"id":"15387","owners":[2],"pid":{"revision_id":0,"type":"depid","value":"15387"},"status":"published"},"_oai":{"id":"oai:nagasaki-u.repo.nii.ac.jp:00015387","sets":["10:11"]},"author_link":["56992","56990","56991","56993"],"item_2_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"335","bibliographicPageStart":"330","bibliographicVolumeNumber":"29","bibliographic_titles":[{"bibliographic_title":"Dental Materials Journal"}]}]},"item_2_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"This study evaluated the tarnish resistance of eight experimental Pd-free Ag-Au-Pt-Cu dental alloys in a 0.1% Na2S aqueous solution at 37°C. Color measurements of the plate samples were made using a computerized spectrophotometer before and after immersion in the test solution for up to 72 hours. Tarnish discoloration was evaluated using the color difference vector, ΔE*, in the CIELAB color space. Microstructural observation of each sample through an optical microscope revealed the matrix phase as the major constituent and second-phase small grains in the matrix phase. Selective tarnish discoloration occurred in the matrix, and fractional area of the matrix to the whole surface area was influenced by the sum of Au and Ag concentrations. The ΔE* value significantly decreased with increasing Au/(Au+Ag) atomic ratio. In conclusion, the Au/(Au+Ag) ratio in an alloy and the fractional area of the matrix were found to be primary and auxiliary factors affecting the tarnish resistance of the experimental alloys.","subitem_description_type":"Abstract"}]},"item_2_description_63":{"attribute_name":"引用","attribute_value_mlt":[{"subitem_description":"Dental Materials Journal, 29(3), pp.330-335; 2010","subitem_description_type":"Other"}]},"item_2_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"The Japanese Society for Dental Materials and Devices"}]},"item_2_relation_12":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.4012/dmj.2009-093","subitem_relation_type_select":"DOI"}}]},"item_2_rights_13":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright (c) 2010 The Japanese Society for Dental Materials and Devices"},{"subitem_rights":"Copyright (c) 2010 日本歯科理工学会"}]},"item_2_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA10443149","subitem_source_identifier_type":"NCID"}]},"item_2_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"02874547","subitem_source_identifier_type":"ISSN"}]},"item_2_text_62":{"attribute_name":"出版者別言語","attribute_value_mlt":[{"subitem_text_value":"日本歯科理工学会"}]},"item_2_version_type_16":{"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":"Takuma, Yasuko"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Shiraishi, Takanobu"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Fujita, Takeshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hisatsune, Kunihiro"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-12-23"}],"displaytype":"detail","filename":"DMJ29_330.pdf","filesize":[{"value":"2.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"DMJ29_330.pdf","url":"https://nagasaki-u.repo.nii.ac.jp/record/15387/files/DMJ29_330.pdf"},"version_id":"f7ee25b8-e81b-4111-9880-3b154719c846"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Dental alloys","subitem_subject_scheme":"Other"},{"subitem_subject":"Discoloration","subitem_subject_scheme":"Other"},{"subitem_subject":"Tarnish resistance","subitem_subject_scheme":"Other"}]},"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":"Tarnish resistance evaluation of experimental Pd-free Ag-Au-Pt-Cu dental alloys","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Tarnish resistance evaluation of experimental Pd-free Ag-Au-Pt-Cu dental alloys"}]},"item_type_id":"2","owner":"2","path":["11"],"pubdate":{"attribute_name":"公開日","attribute_value":"2010-07-06"},"publish_date":"2010-07-06","publish_status":"0","recid":"15387","relation_version_is_last":true,"title":["Tarnish resistance evaluation of experimental Pd-free Ag-Au-Pt-Cu dental alloys"],"weko_creator_id":"2","weko_shared_id":2},"updated":"2023-05-15T18:58:50.588540+00:00"}