{"created":"2024-07-17T00:10:56.854043+00:00","id":2001043,"links":{},"metadata":{"_buckets":{"deposit":"46d3ddb0-ad62-44b8-8eb9-a85de9dd6a88"},"_deposit":{"created_by":17,"id":"2001043","owners":[17],"pid":{"revision_id":0,"type":"depid","value":"2001043"},"status":"published"},"_oai":{"id":"oai:ynu.repo.nii.ac.jp:02001043","sets":["500:501"]},"author_link":[],"control_number":"2001043","item_1724376541206":{"attribute_name":"item_1724376541206","attribute_value_mlt":[{"subitem_award_numbers":{"subitem_award_number":"JPMJAX23D4 / 22B2-01","subitem_award_uri":"https://projectdb.jst.go.jp/grant/JST-PROJECT-23828506/ , https://trami.or.jp/scheme/22b1-01/"},"subitem_award_titles":[{"subitem_award_title":"SRT材料の潤滑機構の階層的な理解と新機能開拓","subitem_award_title_language":"ja"},{"subitem_award_title":"油分付着金属表面への超短パルスレーザ照射による新しいトライボ特性向上技術の提案","subitem_award_title_language":"ja"}],"subitem_funder_identifiers":{"subitem_funder_identifier":"1020","subitem_funder_identifier_type":"e-Rad_funder","subitem_funder_identifier_type_uri":"https://www.e-rad.go.jp/datasets/files/haibunkikan.csv"},"subitem_funder_names":[{"subitem_funder_name":"Japan Science and Technology Agency (JST)","subitem_funder_name_language":"en"},{"subitem_funder_name":"Transmission Research Association for Mobility Innovation","subitem_funder_name_language":"en"}]}]},"item_2_biblio_info_8":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2024-07-09","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"11","bibliographicVolumeNumber":"10","bibliographic_titles":[{"bibliographic_title":"Frontiers of Mechanical Engineering","bibliographic_titleLang":"en"}]}]},"item_2_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"This paper reports the thermally activated ultralow friction of 100% cellulose nanofiber (CNF) molding. The mechanism of friction reduction was investigated using a laboratory-built in-situ Raman tribometer. Our experimental results showed that a CNF molding exhibited an ultralow friction coefficient of below 0.04 in a CNF ring and steel disk tribopair under high-temperature conditions (T > 100°C). The results of the temperature-rise friction test showed that the friction coefficient of the CNF molding strongly depended on the temperature and decreased linearly with increasing temperature. The in situ tribo-Raman monitoring results, during friction, indicated a change in the structure of the CNF molding. Therefore, the crystallinity indices and lengths of the CNF fibers gradually changed as the temperature increased. Moreover, transfer tribofilms were observed on the counter-steel surface against the CNF rings. When the CNF molding exhibited thermally activated ultralow friction, the tribofilm was mainly composed of cellulose and graphitic carbon. Our results suggest that the thermal and friction-activated structural transformations of CNF molding and CNF-derived transfer film formation are pivotal factors contributing to the ultralow friction phenomenon observed in CNF molding at high temperatures.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_2_publisher_35":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"HIGHER EDUCATION PRESS","subitem_publisher_language":"en"}]},"item_2_relation_13":{"attribute_name":"item_2_relation_13","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.3389/fmech.2024.1422412","subitem_relation_type_select":"DOI"}}]},"item_2_source_id_9":{"attribute_name":"item_2_source_id_9","attribute_value_mlt":[{"subitem_source_identifier":"20950233","subitem_source_identifier_type":"PISSN"}]},"item_2_version_type_18":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Faculty of Environment and Information Sciences, Yokohama National University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Okubo, Hikaru","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"0000-0003-1975-2969","nameIdentifierScheme":"ORCID","nameIdentifierURI":"https://orcid.org/0000-0003-1975-2969"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Faculty of Environment and Information Sciences, Yokohama National University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Ishikawa, Tomori","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Chuetsu Pulp & Paper Co Ltd.","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Hashiba, Hiromi","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Chuetsu Pulp & Paper Co Ltd.","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Inamochi, Toru","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Faculty of Environment and Information Sciences, Yokohama National University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Nakano, Ken","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"0000-0001-7437-7984","nameIdentifierScheme":"ORCID","nameIdentifierURI":"https://orcid.org/0000-0001-7437-7984"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-07-17"}],"fileDate":[{"fileDateType":"Issued","fileDateValue":"2024-07-09"}],"filename":"fmech-10-1422412.pdf","filesize":[{"value":"5.4 MB"}],"format":"application/pdf","licensetype":"license_0","mimetype":"application/pdf","url":{"label":"fmech-10-1422412.pdf","objectType":"fulltext","url":"https://ynu.repo.nii.ac.jp/record/2001043/files/fmech-10-1422412.pdf"},"version_id":"396435dc-571b-4efb-9aee-d412424a7514"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"cellulose nanofibers, CNF, ultralow friction, Raman, in-situ, transfer film","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"item_resource_type","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"In-situ vibrational spectroscopic observation for thermally activated structural changes of 100% cellulose nanofiber molding with ultralow friction","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"In-situ vibrational spectroscopic observation for thermally activated structural changes of 100% cellulose nanofiber molding with ultralow friction","subitem_title_language":"en"}]},"item_type_id":"2","owner":"17","path":["501"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-07-09"},"publish_date":"2024-07-09","publish_status":"0","recid":"2001043","relation_version_is_last":true,"title":["In-situ vibrational spectroscopic observation for thermally activated structural changes of 100% cellulose nanofiber molding with ultralow friction"],"weko_creator_id":"17","weko_shared_id":-1},"updated":"2024-10-16T04:59:58.108069+00:00"}