{"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=405303","label":"url"}],"paper_title":{"en":"Improved field electron emission behavior of ultrathin lanthanum hexaboride-coated copper oxide nanowires","ja":"Improved field electron emission behavior of ultrathin lanthanum hexaboride-coated copper oxide nanowires"},"authors":{"en":[{"name":"Amol B. Deore"},{"name":"Aditya T. Jagdale"},{"name":"Chetan D. Mistari"},{"name":"Krishna Jagtap"},{"name":"Sandesh R. Jadkar"},{"name":"Mahendra A. More"},{"name":"Sanjay R. Gadakh"},{"name":"Ueki Tomoyuki"},{"name":"Koinkar Pankaj"}],"ja":[{"name":"Amol B. Deore"},{"name":"Aditya T. Jagdale"},{"name":"Chetan D. Mistari"},{"name":"Krishna Jagtap"},{"name":"Sandesh R. Jadkar"},{"name":"Mahendra A. More"},{"name":"Sanjay R. Gadakh"},{"name":"植木 智之"},{"name":"コインカー パンカジ"}]},"publication_date":"2024-05-24","publication_name":{"en":"International Journal of Modern Physics B","ja":"International Journal of Modern Physics B"},"volume":"Vol.38","number":"No.12-13","starting_page":"2440016","ending_page":"2440016","languages":["eng"],"referee":true,"identifiers":{"doi":["10.1142/S0217979224400162"],"issn":["0217-9792"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=392046","label":"url"}],"paper_title":{"en":"Boron ion implantation on femtosecond-laser-irradiated diamond surface","ja":"Boron ion implantation on femtosecond-laser-irradiated diamond surface"},"authors":{"en":[{"name":"Okada Tatsuya"},{"name":"Bando Kenya"},{"name":"Iwaasa Fumiya"},{"name":"Ueki Tomoyuki"},{"name":"Hisazawa Hiromu"},{"name":"Tomita Takuro"}],"ja":[{"name":"岡田 達也"},{"name":"Bando Kenya"},{"name":"Iwaasa Fumiya"},{"name":"植木 智之"},{"name":"久澤 大夢"},{"name":"富田 卓朗"}]},"publication_date":"2022-09-14","publication_name":{"en":"Japanese Journal of Applied Physics","ja":"Japanese Journal of Applied Physics"},"volume":"Vol.61","number":"No.10","starting_page":"102002-1","ending_page":"102002-5","languages":["eng"],"referee":true,"identifiers":{"doi":["10.35848/1347-4065/ac8c29"],"issn":["1347-4065"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://cir.nii.ac.jp/crid/1390855809731163264/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=387370","label":"url"}],"paper_title":{"en":"Creep Fracture of Copper Tricrystal along Grain Boundaries","ja":"Creep Fracture of Copper Tricrystal along Grain Boundaries"},"authors":{"en":[{"name":"Okada Tatsuya"},{"name":"Hisazawa Hiromu"},{"name":"Morimoto Hiroki"},{"name":"Nakao Kazuki"},{"name":"Okubo Ryota"},{"name":"Ueki Tomoyuki"}],"ja":[{"name":"岡田 達也"},{"name":"久澤 大夢"},{"name":"Morimoto Hiroki"},{"name":"Nakao Kazuki"},{"name":"Okubo Ryota"},{"name":"植木 智之"}]},"description":{"en":"
The major objective of the present study was to investigate the creep fracture process of a copper tricrystal having 110 -tilt Σ3, 3, 9 grain boundaries. Creep tests at 0.81 TM (TM: melting temperature on the absolute temperature scale) under 4 MPa tensile stress were carried out for three samples prepared from the same tricrystal. Grain-boundary sliding occurred along only the Σ9 boundary, and the triple junction of the boundaries completely suppressed the sliding. The three samples were in different stages of creep deformation. Creep fracture was initiated by sliding-induced voids along the Σ9 boundary. Grain-boundary damage by the void formation developed into complete separation along the Σ9 boundary, and the Σ9 boundary crack induced surface grooves along one of the Σ3 boundaries, arranged almost perpendicular to the tensile axis. The crack propagation resulted in the final fracture of the tricrystal along the Σ9 and Σ3 boundaries. The formation of cavities in the Σ3 fracture surface suggested that the final fracture occurred in a ductile manner after the neighboring grains were partly separated along the Σ3 boundary.
","ja":"The major objective of the present study was to investigate the creep fracture process of a copper tricrystal having 110 -tilt Σ3, 3, 9 grain boundaries. Creep tests at 0.81 TM (TM: melting temperature on the absolute temperature scale) under 4 MPa tensile stress were carried out for three samples prepared from the same tricrystal. Grain-boundary sliding occurred along only the Σ9 boundary, and the triple junction of the boundaries completely suppressed the sliding. The three samples were in different stages of creep deformation. Creep fracture was initiated by sliding-induced voids along the Σ9 boundary. Grain-boundary damage by the void formation developed into complete separation along the Σ9 boundary, and the Σ9 boundary crack induced surface grooves along one of the Σ3 boundaries, arranged almost perpendicular to the tensile axis. The crack propagation resulted in the final fracture of the tricrystal along the Σ9 and Σ3 boundaries. The formation of cavities in the Σ3 fracture surface suggested that the final fracture occurred in a ductile manner after the neighboring grains were partly separated along the Σ3 boundary.
"},"publication_date":"2022-08-01","publication_name":{"en":"Materials Transactions","ja":"Materials Transactions"},"volume":"Vol.63","number":"No.8","starting_page":"1133","ending_page":"1137","languages":["eng"],"referee":true,"identifiers":{"doi":["10.2320/matertrans.MT-M2022066"],"issn":["1345-9678"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://repo.lib.tokushima-u.ac.jp/ja/117154","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=385796","label":"url"}],"paper_title":{"en":"Carbon Deposition Assisting the Enhancement of Catalytic Activity with Time-on-Stream in the Dehydrogenation of Isobutane over NiO/Al2O3","ja":"Carbon Deposition Assisting the Enhancement of Catalytic Activity with Time-on-Stream in the Dehydrogenation of Isobutane over NiO/Al2O3"},"authors":{"en":[{"name":"Sugiyama Shigeru"},{"name":"Yoshida Tashu"},{"name":"Shimoda Naohiro"},{"name":"Ueki Tomoyuki"},{"name":"Kato Yuki"},{"name":"Ninomiya Wataru"}],"ja":[{"name":"杉山 茂"},{"name":"吉田 多秀"},{"name":"霜田 直宏"},{"name":"植木 智之"},{"name":"加藤 裕樹"},{"name":"二宮 航"}]},"description":{"en":"In the transformation reaction of alkanes to alkenes via catalytic dehydrogenation, it is generally accepted that the so-called catalytic deactivation behavior will occur. This phenomenon causes a drastic reduction in activity with time-on-stream. It is understood that carbon deposition generated during the reaction then covers the surface of the catalyst, and this leads to a drastic decrease in activity. However, contrary to this common wisdom, our laboratory reported that the dehydrogenation of isobutane to isobutene on NiO/γ-Al2O3 within a specific range of NiO loading in the presence of CO2 actually improved the yield of isobutene with time-on-stream. Since few such cases have been reported, in this study, isobutane was dehydrogenated in the presence of CO2 using NiO/α-Al2O3 as the catalyst with 20% NiO loading and improvement was again observed. In order to investigate the cause of the improvement, both NiO/γ-Al2O3 and NiO/α-Al2O3 with 20% NiO loading were examined in detail following the reaction. According to TEM analysis, both catalysts were covered with a large amount of carbon deposition after the reaction, but there was a difference in the types. The carbon deposition on NiO/γ-Al2O3 had a fibrous nature while that on NiO/α-Al2O3 appeared to be a type of nanowire. Raman spectroscopy revealed that the carbonaceous crystal growth properties of two forms differed depending on the support. In particular, a catalytically active species of metallic nickel was formed in a high degree of dispersion in and on the above two forms of carbon deposition during the reaction, and this resulted in high activity even if the catalyst was covered with a carbon deposition.","ja":"In the transformation reaction of alkanes to alkenes via catalytic dehydrogenation, it is generally accepted that the so-called catalytic deactivation behavior will occur. This phenomenon causes a drastic reduction in activity with time-on-stream. It is understood that carbon deposition generated during the reaction then covers the surface of the catalyst, and this leads to a drastic decrease in activity. However, contrary to this common wisdom, our laboratory reported that the dehydrogenation of isobutane to isobutene on NiO/γ-Al2O3 within a specific range of NiO loading in the presence of CO2 actually improved the yield of isobutene with time-on-stream. Since few such cases have been reported, in this study, isobutane was dehydrogenated in the presence of CO2 using NiO/α-Al2O3 as the catalyst with 20% NiO loading and improvement was again observed. In order to investigate the cause of the improvement, both NiO/γ-Al2O3 and NiO/α-Al2O3 with 20% NiO loading were examined in detail following the reaction. According to TEM analysis, both catalysts were covered with a large amount of carbon deposition after the reaction, but there was a difference in the types. The carbon deposition on NiO/γ-Al2O3 had a fibrous nature while that on NiO/α-Al2O3 appeared to be a type of nanowire. Raman spectroscopy revealed that the carbonaceous crystal growth properties of two forms differed depending on the support. In particular, a catalytically active species of metallic nickel was formed in a high degree of dispersion in and on the above two forms of carbon deposition during the reaction, and this resulted in high activity even if the catalyst was covered with a carbon deposition."},"publication_date":"2022-07-20","publication_name":{"en":"Journal of Chemical Engineering of Japan","ja":"Journal of Chemical Engineering of Japan"},"volume":"Vol.55","number":"No.7","starting_page":"248","ending_page":"254","languages":["eng"],"referee":true,"identifiers":{"doi":["10.1252/jcej.22we031"],"issn":["0021-9592"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://repo.lib.tokushima-u.ac.jp/ja/116877","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=385109","label":"url"}],"paper_title":{"en":"Microscopic Structure and Binding Mechanism of the Corrosion-Protective Film of Oleylpropanediamine on Copper in Hot Water","ja":"Microscopic Structure and Binding Mechanism of the Corrosion-Protective Film of Oleylpropanediamine on Copper in Hot Water"},"authors":{"en":[{"name":"Yoshioka Haruka"},{"name":"Yoshida Ken"},{"name":"Noguchi Naoki"},{"name":"Ueki Tomoyuki"},{"name":"Murai Kei-ichiro"},{"name":"Watanabe Kazuya"},{"name":"Nakahara Masaru"}],"ja":[{"name":"吉岡 春香"},{"name":"吉田 健"},{"name":"野口 直樹"},{"name":"植木 智之"},{"name":"村井 啓一郎"},{"name":"渡邊 一也"},{"name":"中原 勝"}]},"publication_date":"2022-04-05","publication_name":{"en":"The Journal of Physical Chemistry C","ja":"The Journal of Physical Chemistry C"},"volume":"Vol.126","number":"No.14","starting_page":"6436","ending_page":"6447","languages":["eng"],"referee":true,"identifiers":{"doi":["10.1021/acs.jpcc.2c00526"],"issn":["1932-7447"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=373351","label":"url"}],"paper_title":{"en":"Creep fracture of aluminum and copper tricrystals having <110>-tilt Σ3, 3, 9 grain boundaries","ja":"Creep fracture of aluminum and copper tricrystals having <110>-tilt Σ3, 3, 9 grain boundaries"},"authors":{"en":[{"name":"Okada Tatsuya"},{"name":"Hisazawa Hiromu"},{"name":"Iwasaki Akihiro"},{"name":"Kawaguchi Katsuya"},{"name":"Morimoto Hiroki"},{"name":"Nakao Kazuki"},{"name":"Ueki Tomoyuki"},{"name":"Tomita Takuro"}],"ja":[{"name":"岡田 達也"},{"name":"久澤 大夢"},{"name":"Iwasaki Akihiro"},{"name":"Kawaguchi Katsuya"},{"name":"Morimoto Hiroki"},{"name":"Nakao Kazuki"},{"name":"植木 智之"},{"name":"富田 卓朗"}]},"publication_date":"2021-01-12","publication_name":{"en":"Materials Transactions","ja":"Materials Transactions"},"volume":"Vol.62","number":"No.2","starting_page":"239","ending_page":"245","languages":["eng"],"referee":true,"identifiers":{"doi":["10.2320/matertrans.MT-M2020325"],"issn":["1347-5320"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://www.scopus.com/record/display.url?eid=2-s2.0-85086631907&origin=inward","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=366487","label":"url"}],"paper_title":{"en":"Formation of ohmic Ni electrodes on femtosecond laser-modified 4H-SiC surface","ja":"Formation of ohmic Ni electrodes on femtosecond laser-modified 4H-SiC surface"},"authors":{"en":[{"name":"Okada Tatsuya"},{"name":"Fuchikami Yuki"},{"name":"Mimura Kazuki"},{"name":"Ueki Tomoyuki"},{"name":"Hisazawa Hiromu"},{"name":"Tomita Takuro"}],"ja":[{"name":"岡田 達也"},{"name":"Fuchikami Yuki"},{"name":"Mimura Kazuki"},{"name":"植木 智之"},{"name":"久澤 大夢"},{"name":"富田 卓朗"}]},"publication_date":"2020-06-18","publication_name":{"en":"Applied Physics. 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B","ja":"Modern Physics Letters. B"},"volume":"Vol.34","number":"No.7-9","starting_page":"2040024","ending_page":"2040024","languages":["eng"],"referee":true,"identifiers":{"doi":["10.1142/S0217984920400242"],"issn":["0217-9849"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=359530","label":"url"}],"paper_title":{"en":"Local melting of Au/Ni thin films irradiated by femtosecond laser through GaN","ja":"Local melting of Au/Ni thin films irradiated by femtosecond laser through GaN"},"authors":{"en":[{"name":"Okada Tatsuya"},{"name":"Tomita Takuro"},{"name":"Katayama Hiroyuki"},{"name":"Fuchikami Yuki"},{"name":"Ueki Tomoyuki"},{"name":"Hisazawa Hiromu"},{"name":"Tanaka Yasuhiro"}],"ja":[{"name":"岡田 達也"},{"name":"富田 卓朗"},{"name":"Katayama Hiroyuki"},{"name":"Fuchikami Yuki"},{"name":"植木 智之"},{"name":"久澤 大夢"},{"name":"Tanaka Yasuhiro"}]},"publication_date":"2019-09-10","publication_name":{"en":"Applied Physics. 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智之"}]},"publication_date":"2019-01-01","publication_name":{"en":"Materials Transactions","ja":"Materials Transactions"},"volume":"Vol.60","number":"No.1","starting_page":"86","ending_page":"92","languages":["eng"],"referee":true,"identifiers":{"doi":["10.2320/matertrans.M2018296"],"issn":["1347-5320"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=346392","label":"url"}],"paper_title":{"en":"Femtosecond-laser-induced modifications on a 4H-SiC surface and their application to low-temperature diffusion at the Ni/SiC interface","ja":"Femtosecond-laser-induced modifications on a 4H-SiC surface and their application to low-temperature diffusion at the Ni/SiC interface"},"authors":{"en":[{"name":"Okada Tatsuya"},{"name":"Tomita Takuro"},{"name":"Ueki Tomoyuki"},{"name":"Hashimoto Takuya"},{"name":"Fuchikami Yuki"},{"name":"Katayama Hiroyuki"},{"name":"Hisazawa 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mechanism of a red phosphor, CaAlSiN3:Eu for solid-state lighting","ja":"High temperature degradation mechanism of a red phosphor, CaAlSiN3:Eu for solid-state lighting"},"authors":{"en":[{"name":"Oishi Masatsugu"},{"name":"Shiomi Shohei"},{"name":"Yamamoto Takashi"},{"name":"Ueki Tomoyuki"},{"name":"Kai Yoichiro"},{"name":"Chichibu F. 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Shigefusa"},{"name":"Takatori Aiko"},{"name":"Kojima Kazunobu"}]},"publication_date":"2017-09","publication_name":{"en":"Journal of Applied Physics","ja":"Journal of Applied Physics"},"volume":"Vol.122","number":"No.11","starting_page":"113104","ending_page":"113111","languages":["eng"],"referee":true,"identifiers":{"doi":["10.1063/1.5003087"],"issn":["0021-8979"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=323748","label":"url"}],"paper_title":{"en":"Visualization of PVDF nanofibers coated on filter paper using fluorescein silica nanoparticles","ja":"Visualization of PVDF nanofibers coated on filter paper using fluorescein silica nanoparticles"},"authors":{"en":[{"name":"Miyoshi Hirokazu"},{"name":"Yumoto Akira"},{"name":"Shono Masayuki"},{"name":"Ueki Tomoyuki"},{"name":"Itsuki Yoshinori"}],"ja":[{"name":"三好 弘一"},{"name":"Yumoto Akira"},{"name":"庄野 正行"},{"name":"植木 智之"},{"name":"Itsuki Yoshinori"}]},"publication_date":"2017-03","publication_name":{"en":"Journal of Applied Polymer Science","ja":"Journal of Applied Polymer Science"},"volume":"Vol.134","number":"No.30","starting_page":"45125","ending_page":"45125","languages":["eng"],"referee":true,"identifiers":{"doi":["10.1002/app.45125"],"issn":["1097-4628"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://repo.lib.tokushima-u.ac.jp/ja/111014","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=322340","label":"url"}],"paper_title":{"en":"Femtosecond laser-induced modification at aluminum/diamond interface","ja":"Femtosecond laser-induced modification at aluminum/diamond interface"},"authors":{"en":[{"name":"Okada Tatsuya"},{"name":"Tomita Takuro"},{"name":"Ueki Tomoyuki"},{"name":"Masai Yuki"},{"name":"Bando Yota"},{"name":"Tanaka Yasuhiro"}],"ja":[{"name":"岡田 達也"},{"name":"富田 卓朗"},{"name":"植木 智之"},{"name":"政井 勇輝"},{"name":"板東 洋太"},{"name":"田中 康弘"}]},"publication_date":"2017-01-24","publication_name":{"en":"Japanese Journal of Applied Physics","ja":"Japanese Journal of Applied Physics"},"volume":"Vol.56","number":"No.2","starting_page":"026601-1","ending_page":"026601-5","languages":["eng"],"referee":true,"identifiers":{"doi":["10.7567/JJAP.56.026601"],"issn":["1347-4065"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=306209","label":"url"}],"paper_title":{"en":"Low-Temperature Diffusion at Ni/SiC Interface with the Aid of Femtosecond Laser-Induced Strain","ja":"Low-Temperature Diffusion at Ni/SiC Interface with the Aid of Femtosecond Laser-Induced Strain"},"authors":{"en":[{"name":"Takidani Yusuke"},{"name":"Morimoto Kazuki"},{"name":"Kondo Kenta"},{"name":"Ueki Tomoyuki"},{"name":"Tomita Takuro"},{"name":"Tanaka Yasuhiro"},{"name":"Okada Tatsuya"}],"ja":[{"name":"Takidani Yusuke"},{"name":"Morimoto Kazuki"},{"name":"Kondo Kenta"},{"name":"植木 智之"},{"name":"富田 卓朗"},{"name":"Tanaka Yasuhiro"},{"name":"岡田 達也"}]},"publication_date":"2015-12-28","publication_name":{"en":"Journal of Laser Micro/Nanoengineering","ja":"Journal of Laser Micro/Nanoengineering"},"volume":"Vol.10","number":"No.3","starting_page":"314","ending_page":"319","languages":["eng"],"referee":true,"identifiers":{"doi":["10.2961/jlmn.2015.03.0014"],"issn":["1880-0688"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://www.scopus.com/record/display.url?eid=2-s2.0-84928392471&origin=inward","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=292711","label":"url"}],"paper_title":{"en":"Preparation of micro-biosensor for continuous glucose monitoring","ja":"Preparation of micro-biosensor for continuous glucose monitoring"},"authors":{"en":[{"name":"Yasuzawa Mikito"},{"name":"Taketo Toba"},{"name":"Kentaro Hiura"},{"name":"Jiang Li"},{"name":"Koinkar Pankaj"},{"name":"Ueki Tomoyuki"},{"name":"Yusuke Fuchiwaki"}],"ja":[{"name":"安澤 幹人"},{"name":"Taketo Toba"},{"name":"Kentaro Hiura"},{"name":"Jiang Li"},{"name":"コインカー パンカジ"},{"name":"植木 智之"},{"name":"Yusuke Fuchiwaki"}]},"publication_date":"2015-03-30","publication_name":{"en":"Modern Physics Letters. B","ja":"Modern Physics Letters. B"},"volume":"Vol.29","number":"No.6-7","starting_page":"1540040","ending_page":"1540040","languages":["eng"],"referee":true,"identifiers":{"doi":["10.1142/S0217984915400400"],"issn":["0217-9849"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://www.scopus.com/record/display.url?eid=2-s2.0-84949115274&origin=inward","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=289194","label":"url"}],"paper_title":{"en":"Influence of alkali treatment on internal microstructure and tensile properties of abaca fibers","ja":"Influence of alkali treatment on internal microstructure and tensile properties of abaca fibers"},"authors":{"en":[{"name":"Cai Ming"},{"name":"Takagi Hitoshi"},{"name":"Nakagaito Antonio"},{"name":"Katoh Masahiro"},{"name":"Ueki Tomoyuki"},{"name":"Waterhouse I.N. Geoffrey"},{"name":"Li Yan"}],"ja":[{"name":"蔡 明"},{"name":"高木 均"},{"name":"ナカガイト アントニオ"},{"name":"加藤 雅裕"},{"name":"植木 智之"},{"name":"Waterhouse I.N. Geoffrey"},{"name":"Li Yan"}]},"description":{"en":"The objective of this study is to investigate the effect of alkali treatment on the internal microstructure and tensile properties of abaca fibers. The abaca fibers were immersed in aqueous solutions of NaOH (5, 10, or 15 wt%) for 30 min, rinsed and dried. The fibers were subsequently characterized by scanning electron microscopy, X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FT-IR), and tensile strength tests. The lumen is a hollow region in each elementary fiber of the abaca fiber bundles. It was found that the lumen of the abaca fibers completely collapsed after 10 and 15 wt% NaOH treatment, due to swelling of the fibers. The fibers also became twisted after these alkali treatments. It was found that cellulose I in abaca fibers was partially transformed to cellulose II after 15 wt% NaOH treatment, as evidenced by XRD measurements. FT-IR analysis indicated that the alkali treatment led to a gradual removal of binding materials; such as hemicelluloses and lignin, from the abaca fibers, resulting in the separation of abaca fiber bundles into individual elementary fibers. The tensile strength of alkali-treated abaca fibers did not vary with alkali concentration. The Young's modulus of the abaca fibers treated with 5 wt% NaOH solution increased by 41%, whereas those treated with 10 and 15 wt% NaOH solution decreased by 24 and 29%, respectively. A non-linear behavior was observed in the stress strain curves of the abaca fibers after 10 and 15 wt% alkali treatment, which could be attributable to the twisting of the fibers.","ja":"アバカ繊維の内部構造と引張特性に及ぼすアルカリ処理の影響について調査した.繊維中のルーメンは10,15wt%NaOHで処理すると消失すると共に繊維がツイストすることを見いだした.アルカリ処理したアバカ繊維の引張強度にはほとんど変化はない.しかし,5wt%NaOHで処理した場合,ヤング率は41%増加するのに対して,10,15wt%NaOHで処理するとそれぞれ24%,29%低下する.10,15wt%NaOHで処理したアバカ繊維は非線形の応力-ひずみ関係になり,この非線形性は繊維のツイスト化によってもたらされると推察される."},"publication_date":"2015-03","publication_name":{"en":"Industrial Crops and Products","ja":"Industrial Crops and Products"},"volume":"Vol.65","starting_page":"27","ending_page":"35","languages":["eng"],"referee":true,"identifiers":{"doi":["10.1016/j.indcrop.2014.11.048"],"issn":["0926-6690"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://www.scopus.com/record/display.url?eid=2-s2.0-84918814965&origin=inward","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=288426","label":"url"}],"paper_title":{"en":"Bonding mechanism of lead-free solder and glass plate by ultrasonic assisted soldering method","ja":"Bonding mechanism of lead-free solder and glass plate by ultrasonic assisted soldering method"},"authors":{"en":[{"name":"Yonekura Daisuke"},{"name":"Ueki Tomoyuki"},{"name":"Tokiyasu Kazushige"},{"name":"Kira Shuji"},{"name":"Wakabayashi Toshio"}],"ja":[{"name":"米倉 大介"},{"name":"植木 智之"},{"name":"Tokiyasu Kazushige"},{"name":"Kira Shuji"},{"name":"Wakabayashi Toshio"}]},"publication_date":"2015-01","publication_name":{"en":"Materials & Design (1980-2015)","ja":"Materials & Design (1980-2015)"},"volume":"Vol.65","starting_page":"907","ending_page":"913","languages":["eng"],"referee":true,"identifiers":{"doi":["10.1016/j.matdes.2014.10.024"],"issn":["0261-3069"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=268631","label":"url"}],"paper_title":{"en":"Identification of Second Phases for Sr1-xLaxTiO3 Perovskites Synthesized by Citric-Gel Method","ja":"Identification of Second Phases for Sr1-xLaxTiO3 Perovskites Synthesized by Citric-Gel Method"},"authors":{"en":[{"name":"Fujikawa Masaki"},{"name":"Higashi Yuta"},{"name":"Nomura Yutaro"},{"name":"Ueki Tomoyuki"},{"name":"Sugano Satoshi"},{"name":"Murai Kei-ichiro"},{"name":"Moriga Toshihiro"},{"name":"Mori Masashi"}],"ja":[{"name":"藤川 真輝"},{"name":"東 佑太"},{"name":"野村 祐太朗"},{"name":"植木 智之"},{"name":"菅野 智士"},{"name":"村井 啓一郎"},{"name":"森賀 俊広"},{"name":"森 昌史"}]},"publication_date":"2013-10","publication_name":{"en":"ECS Transactions","ja":"ECS Transactions"},"volume":"Vol.57","number":"No.1","starting_page":"2331","ending_page":"2337","languages":["eng"],"referee":true,"identifiers":{"doi":["10.1149/05701.2331ecst"],"issn":["1938-6737"]},"published_paper_type":"scientific_journal"}} {"insert":{"type":"published_papers"},"force":{"see_also":[{"@id":"http://id.ndl.go.jp/bib/024346210","label":"url"},{"@id":"https://cir.nii.ac.jp/crid/1390001206482226560/","label":"url"},{"@id":"https://www.scopus.com/record/display.url?eid=2-s2.0-84877703303&origin=inward","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260796","label":"url"}],"paper_title":{"en":"Orientation of Initial-Stage Recrystallized Grain in Non-Uniformly Deformed Copper Single Crystal","ja":"不均一変形した銅単結晶における初期段階の再結晶粒方位"},"authors":{"en":[{"name":"加藤 慎也"},{"name":"大坪 啓視"},{"name":"Ueki Tomoyuki"},{"name":"Okada Tatsuya"}],"ja":[{"name":"加藤 慎也"},{"name":"大坪 啓視"},{"name":"植木 智之"},{"name":"岡田 達也"}]},"description":{"en":"The objective of the present study was to find the orientation relationship between a recrystallized grain at its initial stage and a deformation microstructure in a non-uniformly deformed copper single crystal.