Toshihiro Tabuchi, Y. Toyoshima, S. Fujimoto, M. Takashiri
Toshihiro Tabuchi, Yasumasa Toyoshima, Shinichi Fujimoto, and Masayuki Takashiri 1Development Division, Komatsu Ltd., 1200 Manda, Hiratsuka, Kanagawa 254-8567, Japan 2KELK Ltd., 3-25-1 Shinomiya, Hiratsuka, Kanagawa 254-8543 Japan 3Department of Materials Science, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan * Corresponding authors: e-mail: toshihiro_tabuchi@komatsu.co.jp, and/or takashiri@tokai-u.jp
{"title":"Application of low hydrogen-diluted and low gaseous-pressure monosilane plasma to fast deposition of solar-cell-grade microcrystalline silicon","authors":"Toshihiro Tabuchi, Y. Toyoshima, S. Fujimoto, M. Takashiri","doi":"10.14723/TMRSJ.41.385","DOIUrl":"https://doi.org/10.14723/TMRSJ.41.385","url":null,"abstract":"Toshihiro Tabuchi, Yasumasa Toyoshima, Shinichi Fujimoto, and Masayuki Takashiri 1Development Division, Komatsu Ltd., 1200 Manda, Hiratsuka, Kanagawa 254-8567, Japan 2KELK Ltd., 3-25-1 Shinomiya, Hiratsuka, Kanagawa 254-8543 Japan 3Department of Materials Science, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan * Corresponding authors: e-mail: toshihiro_tabuchi@komatsu.co.jp, and/or takashiri@tokai-u.jp","PeriodicalId":23220,"journal":{"name":"Transactions-Materials Research Society of Japan","volume":"67 1","pages":"385-392"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77889919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y. Tomita, J. Kato, N. Kamiya, Y. Kohno, Y. Maeda, Kenkichiro Kobayashi
Anhydrous FeF3 was prepared by drying in vacuum of FeF3•3H2O and surface oxidized FeF3 samples were obtained by the calcination of Anhydrous FeF3 at 473 – 773 K for 10 minutes 3 hours under air. The obtained samples were characterized by use of X-ray diffraction, scanning electron microscopy. FeF3 became stable under atmosphere after oxidation at 673 K for more than 20 minutes. It was found that Fe2O3 was produced by calcination and covered the surface of FeF3 particles. In Charge-discharge measurements, the discharge capacity of these FeF3 samples was 100 225 mAh/g at 0.1 C. The discharge capacity for FeF3 sample calcined at 673 K for 20 min decreased with an increase of the discharge rate and the capacity at a high rate such as 3 C was maintained to be 130 mAh/g which was half value of the theoretical capacity of FeF3 cathode. The surface oxidation could improve the rate capability of FeF3 cathode.
{"title":"Effect of Oxidation on Charge-Discharge Property of Iron Fluoride for Li-ion Secondary Battery","authors":"Y. Tomita, J. Kato, N. Kamiya, Y. Kohno, Y. Maeda, Kenkichiro Kobayashi","doi":"10.14723/TMRSJ.41.375","DOIUrl":"https://doi.org/10.14723/TMRSJ.41.375","url":null,"abstract":"Anhydrous FeF3 was prepared by drying in vacuum of FeF3•3H2O and surface oxidized FeF3 samples were obtained by the calcination of Anhydrous FeF3 at 473 – 773 K for 10 minutes 3 hours under air. The obtained samples were characterized by use of X-ray diffraction, scanning electron microscopy. FeF3 became stable under atmosphere after oxidation at 673 K for more than 20 minutes. It was found that Fe2O3 was produced by calcination and covered the surface of FeF3 particles. In Charge-discharge measurements, the discharge capacity of these FeF3 samples was 100 225 mAh/g at 0.1 C. The discharge capacity for FeF3 sample calcined at 673 K for 20 min decreased with an increase of the discharge rate and the capacity at a high rate such as 3 C was maintained to be 130 mAh/g which was half value of the theoretical capacity of FeF3 cathode. The surface oxidation could improve the rate capability of FeF3 cathode.","PeriodicalId":23220,"journal":{"name":"Transactions-Materials Research Society of Japan","volume":"7 1","pages":"375-378"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88861324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Kawaguchi, R. Kita, N. Shinyashiki, S. Yagihara, M. Fukuzaki
T. Kawaguchi1, R. Kita1, N. Shinyashiki1, S. Yagihara1* and M. Fukuzaki2 1 Graduate School of Science and Technology, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa, 259-1292, Japan 2 School of Information and Telecommunication Engineering, Tokai University, Takanawa, Minato-ku, Tokyo 108-8619, Japan * Corresponding author: Fax: 81-463-50-2013, and/or e-mail: yagihara@keyaki.cc.u-tokai.ac.jp
{"title":"The Bi-modality Diffusion of Water Molecules in Liposome/Water Dispersion Systems Analyzed by Pulsed Field Gradient Spin Echo NMR Method","authors":"T. Kawaguchi, R. Kita, N. Shinyashiki, S. Yagihara, M. Fukuzaki","doi":"10.14723/TMRSJ.41.359","DOIUrl":"https://doi.org/10.14723/TMRSJ.41.359","url":null,"abstract":"T. Kawaguchi1, R. Kita1, N. Shinyashiki1, S. Yagihara1* and M. Fukuzaki2 1 Graduate School of Science and Technology, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa, 259-1292, Japan 2 School of Information and Telecommunication Engineering, Tokai University, Takanawa, Minato-ku, Tokyo 108-8619, Japan * Corresponding author: Fax: 81-463-50-2013, and/or e-mail: yagihara@keyaki.cc.u-tokai.ac.jp","PeriodicalId":23220,"journal":{"name":"Transactions-Materials Research Society of Japan","volume":"29 1","pages":"359-362"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84090794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Kamiguchi, Masanori Sakakibara, Kimihisa Matsumoto, K. Kamiya, T. Nomura, S. Kawabata, M. Inada, Shinya Suzuki
{"title":"Luminescence Property of Water Dispersed Porous Si Terminated by Organic Molecules","authors":"M. Kamiguchi, Masanori Sakakibara, Kimihisa Matsumoto, K. Kamiya, T. Nomura, S. Kawabata, M. Inada, Shinya Suzuki","doi":"10.14723/TMRSJ.41.347","DOIUrl":"https://doi.org/10.14723/TMRSJ.41.347","url":null,"abstract":"","PeriodicalId":23220,"journal":{"name":"Transactions-Materials Research Society of Japan","volume":"94 1","pages":"347-350"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81242874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ryuichi Iida, Tadashi Ohtani, Takahisa Nakai, Koji Adachi 1 Division of Human Life and Technology Education, The United Graduate School of Education Tokyo Gakugei University, 4-1-1 Nukuikitamachi, Koganei-shi, Tokyo 184-8501, Japan 2 Department of Natural Science, Tokyo Gakugei University, 4-1-1 Nukuikitamachi, Koganei-shi, Tokyo 184-8501, Japan 3 Interdisciplinary graduate school of Science and Engineering, Shimane University, 1060 Nishikawatsu-cho, Matsue-shi, Shimane 690-8504, Japan 4 Institute of Wood Technology, Akita prefectural University, 11-1 Kaieizaka, Nosiro-shi Akita 016-0876, Japan * Corresponding author: e-mail:m111901m@st.u-gakugei.ac.jp
{"title":"Transcription properties of asperities in wood surfaces under high-speed friction","authors":"R. Iida, T. Ohtani, T. Nakai, Koji Adachi","doi":"10.14723/TMRSJ.41.367","DOIUrl":"https://doi.org/10.14723/TMRSJ.41.367","url":null,"abstract":"Ryuichi Iida, Tadashi Ohtani, Takahisa Nakai, Koji Adachi 1 Division of Human Life and Technology Education, The United Graduate School of Education Tokyo Gakugei University, 4-1-1 Nukuikitamachi, Koganei-shi, Tokyo 184-8501, Japan 2 Department of Natural Science, Tokyo Gakugei University, 4-1-1 Nukuikitamachi, Koganei-shi, Tokyo 184-8501, Japan 3 Interdisciplinary graduate school of Science and Engineering, Shimane University, 1060 Nishikawatsu-cho, Matsue-shi, Shimane 690-8504, Japan 4 Institute of Wood Technology, Akita prefectural University, 11-1 Kaieizaka, Nosiro-shi Akita 016-0876, Japan * Corresponding author: e-mail:m111901m@st.u-gakugei.ac.jp","PeriodicalId":23220,"journal":{"name":"Transactions-Materials Research Society of Japan","volume":"61 1","pages":"367-373"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80691835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We successfully synthesized a thin graphite film by microwave surface-wave plasma chemical vapor deposition and investigated the effect of UV light from the plasma during the film synthesis. The quality of the film was compared between the case where UV light was irradiated from the plasma and the case where the UV light was blocked. The quality was also evaluated by Raman scattering spectroscopy. There were more defects in the thin graphite film prepared with UV light irradiation than with the UV light blocked. These results suggest that during the synthesis of the thin graphite film, UV light affects its crystallinity. However, charged particles from the plasma had no effect on the quality. Cross-sectional transmission electron microscopy revealed that the thin graphite film consisted of approximately 20 layers.
{"title":"Synthesis of Thin Graphite Film by Microwave Surface-Wave Plasma Chemical Vapor Deposition","authors":"S. Ichimura, M. Umeno","doi":"10.14723/TMRSJ.41.379","DOIUrl":"https://doi.org/10.14723/TMRSJ.41.379","url":null,"abstract":"We successfully synthesized a thin graphite film by microwave surface-wave plasma chemical vapor deposition and investigated the effect of UV light from the plasma during the film synthesis. The quality of the film was compared between the case where UV light was irradiated from the plasma and the case where the UV light was blocked. The quality was also evaluated by Raman scattering spectroscopy. There were more defects in the thin graphite film prepared with UV light irradiation than with the UV light blocked. These results suggest that during the synthesis of the thin graphite film, UV light affects its crystallinity. However, charged particles from the plasma had no effect on the quality. Cross-sectional transmission electron microscopy revealed that the thin graphite film consisted of approximately 20 layers.","PeriodicalId":23220,"journal":{"name":"Transactions-Materials Research Society of Japan","volume":"25 1","pages":"379-383"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73422907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sota Inanaga, Hamdi Bin Rimfiel, J. Noda, K. Goda, T. Okabe
Because bamboo flour shows a rather more fiber-like shape rather than wood flour does, it is expected that a combination of bamboo flour and phenol exhibits higher mechanical properties, as compared to those of wood ceramics. After a bamboo flour/phenol resin composite was carbonized at 800 o C and 1,500 o C, its bending properties were investigated. Results show that the bending properties of the carbonized composite are comparable to those of wood ceramics. Regarding the effects of carbonizing temperatures, the composite elastic modulus carbonized at 1,500 o C shows a higher value than that carbonized at 800 o C. In addition, the electron probe microanalysis (EPMA) was conducted. The result of 1,500 o C shows that silicon carbide (SiC) occurs finely and dispersedly. The bending modulus obtained at 1,500 o C is improved probably because such occurrence of SiC makes it stiffer. In this paper, wear properties of the composite were investigated further.
{"title":"Mechanical Properties of a Carbonized Bamboo Flour/Phenol Resin Composite","authors":"Sota Inanaga, Hamdi Bin Rimfiel, J. Noda, K. Goda, T. Okabe","doi":"10.14723/TMRSJ.41.393","DOIUrl":"https://doi.org/10.14723/TMRSJ.41.393","url":null,"abstract":"Because bamboo flour shows a rather more fiber-like shape rather than wood flour does, it is expected that a combination of bamboo flour and phenol exhibits higher mechanical properties, as compared to those of wood ceramics. After a bamboo flour/phenol resin composite was carbonized at 800 o C and 1,500 o C, its bending properties were investigated. Results show that the bending properties of the carbonized composite are comparable to those of wood ceramics. Regarding the effects of carbonizing temperatures, the composite elastic modulus carbonized at 1,500 o C shows a higher value than that carbonized at 800 o C. In addition, the electron probe microanalysis (EPMA) was conducted. The result of 1,500 o C shows that silicon carbide (SiC) occurs finely and dispersedly. The bending modulus obtained at 1,500 o C is improved probably because such occurrence of SiC makes it stiffer. In this paper, wear properties of the composite were investigated further.","PeriodicalId":23220,"journal":{"name":"Transactions-Materials Research Society of Japan","volume":"28 1","pages":"393-396"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85152115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We successfully examined effects of pulverization and an addition of sintering aids on the orientation degree, sintering performances, and dielectric properties of sintered compacts of needle-like TiO2 particles. In the case of additive-free samples, an improvement in sintering performances was achieved by pulverization. However, the orientation degrees of these samples were decreased and calcination at high temperatures (≥ 1200 °C) was indispensable for obtaining an adequate relative density. On the other hand, by the addition of CuO-TiO2-Nb2O5-Ag2O type additives, the samples could be well sintered as much as 380 °C below their original sintering temperature with retaining the high orientation degrees. Moreover, high insulation resistances were achieved for samples with additives compared to that of additive-free samples and its relationship with the microstructures was discussed. Thus, this study provides an experimental investigation on improvements of sinterabilities and insulation properties of orientated TiO2 ceramics by the use of sintering additives.
{"title":"Improvement of Sintering Performances and Dielectric Properties of Oriented TiO2 Ceramics Using Sintering Additives","authors":"Koichi Shigeno, H. Fujimori","doi":"10.14723/TMRSJ.41.337","DOIUrl":"https://doi.org/10.14723/TMRSJ.41.337","url":null,"abstract":"We successfully examined effects of pulverization and an addition of sintering aids on the orientation degree, sintering performances, and dielectric properties of sintered compacts of needle-like TiO2 particles. In the case of additive-free samples, an improvement in sintering performances was achieved by pulverization. However, the orientation degrees of these samples were decreased and calcination at high temperatures (≥ 1200 °C) was indispensable for obtaining an adequate relative density. On the other hand, by the addition of CuO-TiO2-Nb2O5-Ag2O type additives, the samples could be well sintered as much as 380 °C below their original sintering temperature with retaining the high orientation degrees. Moreover, high insulation resistances were achieved for samples with additives compared to that of additive-free samples and its relationship with the microstructures was discussed. Thus, this study provides an experimental investigation on improvements of sinterabilities and insulation properties of orientated TiO2 ceramics by the use of sintering additives.","PeriodicalId":23220,"journal":{"name":"Transactions-Materials Research Society of Japan","volume":"19 1","pages":"337-340"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91220013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We synthesized carbon nanowalls on a Si substrate by microwave surface -wave plasma chemical vapor deposition. The Raman scattering ID/IG ratio was changed by altering the DC bias applied to the growth substrate and the decrease in ID/IG with increasing DC bias appears to arise from the growing length of the carbon nanowalls. The ultrasonically separated carbon nanowalls in ethanol exhibited strong 2D -peak intensity and significant graphitization. A graphite layer of approximately 10 nm grew parallel to the substrate initially, and the carbon nanowalls grew on top of that. When the nanowalls were dispersed in ethanol and spin-coated onto PET, they exhibited a transmittance of 81% and a sheet resistance of 52 kΩ/□ without reduction treatment used in the graphene oxide.
{"title":"DC Biasing Effects on Properties of Carbon Nanowalls by Microwave Surface-Wave Plasma Chemical Vapor Deposition and Towards Transparent Electrode","authors":"S. Ichimura, S. Ichimura, Y. Hayashi, M. Umeno","doi":"10.14723/TMRSJ.41.229","DOIUrl":"https://doi.org/10.14723/TMRSJ.41.229","url":null,"abstract":"We synthesized carbon nanowalls on a Si substrate by microwave surface -wave plasma chemical vapor deposition. The Raman scattering ID/IG ratio was changed by altering the DC bias applied to the growth substrate and the decrease in ID/IG with increasing DC bias appears to arise from the growing length of the carbon nanowalls. The ultrasonically separated carbon nanowalls in ethanol exhibited strong 2D -peak intensity and significant graphitization. A graphite layer of approximately 10 nm grew parallel to the substrate initially, and the carbon nanowalls grew on top of that. When the nanowalls were dispersed in ethanol and spin-coated onto PET, they exhibited a transmittance of 81% and a sheet resistance of 52 kΩ/□ without reduction treatment used in the graphene oxide.","PeriodicalId":23220,"journal":{"name":"Transactions-Materials Research Society of Japan","volume":"25 1","pages":"229-233"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73765426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Control of Fermi Level by Variation of Charge Ordering State in Yb1-xTixFe2O4","authors":"T. Nagata, H. Okazaki, T. Wakita, T. Fukura, N. Iwata, H. Yamamoto, T. Yokoya, N. Ikeda","doi":"10.14723/TMRSJ.41.269","DOIUrl":"https://doi.org/10.14723/TMRSJ.41.269","url":null,"abstract":"Tomoko Nagata1*, Hiroyuki Okazaki2, Takanori Wakita2, Tetsushi Fukura2, Nobuyuki Iwata1, Hiroshi Yamamoto1, Takayoshi Yokoya3 and Naoshi Ikeda2 1 College of Science and Technology, Nihon University, 7-24-1, Narashinodai, Funabashi, Chiba 274-8501, Japan 2 Department of Physics, Okayama University, 3-1-1 Tsushima, Kita-ku, Okayama 700-8530, Japan 3 Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushima-naka, Okayama 700-8530, Japan * Corresponding author: Fax: 81-47-469-5457, e-mail: nagata.tomoko@nihon-u.ac.jp","PeriodicalId":23220,"journal":{"name":"Transactions-Materials Research Society of Japan","volume":"104 1","pages":"269-271"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87985042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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