Runa Miyata, Taito Ogiya, Yoshihiro Sato, Ryota Kobayashi, Fumio Munakata, "Compatibility of the mechanical properties and thermal conductivity by the formation of a secondary phase in AlN ceramics: application of multifractal analysis for the microstructure evaluation", Ceramics International, in press.
Emiko Fukushi, Runa Miyata, Hiroya Okazaki, Ryota Kobayashi, "Effect of classified aluminum nitride whisker addition on densification and mechanical strength of low-temperature-sintered aluminum nitride ceramics", Journal of the Ceramic Society of Japan, 132, pp633-636 (2024)
Shogo Iizuka, Ai Momozawa, Shogo Miyazaki, Tomoyuki Ikeda, Yuki Naito, Honoka Morishita, Ryota Kobayashi, Satofumi Maruyama, Kimiya Komurasaki, "Surface nirtiding process of zirconium cathode for arc-heated plasma wind tunnel", Vacuum, 218, 112539 (2023)
Fumio Munakata, Kazuya Ookubo, Mariko Takeda, Yoshihiro Sato, Yuka Mizukami, Kazuhiro Nemoto, Satoko Abe, Yue Bao, Ryota Kobayashi, "Self-assembly process under a solid-state reaction of β-Si3N4/austenitic stainless-steel composites -stirring conditions and material texture-", Journal of Composite Materials, 56, 455-466 (2022)
Yoshihiro Sato, Yuka Mizukami, Mariko Takeda, Kazuya Okubo, Ryota Kobayashi, Fumio Munakata, "Quantitative evaluation of morphological characteristics of self-assembled aggregates using multifractal analysis", Physica A, 581, 126219 (2021)
Fumio Munakata, Mariko Takeda, Kazuhiro Nemoto, Kazuya Ookubo, Yoshihiro Sato, Yuka Mizukami, Masashi Koga, Satoko Abe, Yue Bao, Ryota Kobayashi, "Multifractal characteristics of the self-assembly material texture of β-Si3N4/SUS316L austenitic stainless steel composites", Journal of Alloys and Compounds, 853, 156570 (2021)
Hiroya Okazaki, Ryota Kobayashi, Rei Hashimoto, Emiko Fukushi, Junichi Tatami, "Thermal conductivity and mechanical strength of low-temperature-sintered AlN ceramics containing AlN whiskers", Journal of the Ceramic Society of Japan, 128, pp991-994 (2020)
Katsuyoshi Oh-ishi, Ryota Kobayashi, Kengo Oka, "Analysis of CO2 absorption reaction of Li4SiO4 on the basis of Madelung potential of Li site in crystal structure", Journal of the Ceramic Society of Japan, 125, pp383-386 (2017)
Katsuyoshi Oh-ishi, Kenta Nagumo, Kazuya Tateishi, Takafumi Ohnishi, Kenta Yoshikane, Machiko Sugiyama, Kengo Oka, Ryota Kobayashi, "Preparation of Mo-Re-C samples containing Mo7Re13C with the β-Mn-type structure by solid state reaction of planetary-ball-milled powder mixtures of Mo, Re and C, and their crystal structures and superconductivity", Journal of Solid State Chemistry, 245, pp207-212 (2017)
Ryota Kobayashi, Yuuki Fukutomi, Takayuki Takagi, "Synthesis of AlN needles by nitridation of Al-Si melt", Journal of the Ceramic Society of Japan, 124, pp1161-1163 (2016)
Ryota Kobayashi, Katsuyoshi Oh-ishi, Rong Tu, Takashi Goto, "Sintering behavior, Microstructure, and Thermal Conductivity of Dense AlN Ceramics Processed by Spark Plasma Sintering with Y2O3-CaO-B Additives", Ceramics International, 41, pp1897-1901 (2015)
Katsuyoshi Oh-ishi, Yusuke Matsukura, Takeshi Okumura, Yuuki Matsunaga, Ryota Kobayashi , "Fundamental Research on Gas-Solid Reaction between CO2 and Li2CuO2 Linking Application for Solid CO2 Absorbent", Journal of Solid State Chemistry, 211, pp162-169 (2014)
Ryota Kobayashi, Junichi Tatami, I.-Wei Chen, Toru Wakihara, Katsutoshi Komeya, Takeshi Meguro, Rong Tu, Takashi Goto , "High Temperature Mechanical Properties of Dense AlN-SiC Ceramics Fabricated by Spark Plasma Sintering Without Sintering Additives", Journal of the American Ceramic Society, 94, pp4150-4153 (2011)
Ryota Kobayashi, Katsuyoshi Oh-ishi, "Analyses of Microstructure and Oxygen Content Effects on Thermal Conductivity of AlN Ceramics by using Slack's Plot", Key Engineering Materials, 484, pp61-64 (2011)
Ryota Kobayashi, Yoshiaki Moriya, Makoto Imamura, Kazuhiro Oosawa, Katsuyoshi Oh-ishi, "Relation between Oxygen Concentration in AlN lattice and Thermal Conductivity of AlN Ceramics Sintered with Various Sintering Additives", Journal of the Ceramic Society of Japan, 119, pp291-294 (2011)
Ryota Kobayashi, Junichi Tatami, Toru Wakihara, Katsutoshi Komeya, Takeshi Meguro, Rong Tu, Takashi Goto, "Evaluation of grain boundary conduction of dense AlN-SiC solid solution by scanning non-linear dielectric microscopy", Journal of the American Ceramic Society, 93, pp4026-4029 (2010)
Yusuke Matsukura, Takeshi Okumura, Ryota Kobayashi, Katsuyoshi Oh-ishi, "Synthesis and CO2 Absorption Property of Single Phase Li2CuO2 as a CO2 Absorbent", Chemistry Letters, 39, pp966-967 (2010)
Ryota Kobayashi, Junichi Tatami, Toru Wakihara, Katsutoshi Komeya, Takeshi Meguro, Rong Tu, Takashi Goto, "Fabrication and evaluation of AlN-SiC solid solutions with p-type electrical conduction", Key Engineering Materials, 403, pp39-42 (2009)
Ryota Kobayashi, Junichi Tatami, Toru Wakihara, Katsutoshi Komeya, Takeshi Meguro, Takashi Goto, Rong Tu , "Use of post-heat treatment to obtain 2H solid solution in SPS processed AlN-SiC mixtures", Journal of the American Ceramic Society, 91, pp1548-1552 (2008)
Ryota Kobayashi, Junichi Tatami, Toru Wakihara, Katsutoshi Komeya, Takeshi Meguro, "Electrical Properties of AlN-SiC Solid Solutions with Addition of Al and C", Ceramic Engineering and Science Proceedings, 28, pp111-115 (2007)
Ryota Kobayashi, Junichi Tatami, Toru Wakihara, Takeshi Meguro, Katsutoshi Komeya, "Temperature Dependence of the Electrical Properties and Seebeck Coefficient of AlN-SiC Ceramics", Journal of the American Ceramic Society, 89, pp1295-1299 (2006)
Mariko Takeda, Kazuya Okubo, Yuka Mizukami, Yoshihiro Sato, Satoko Abe, Ryota Kobayashi, Yue Bao, Fumio Munakata, "Self-assembly Material Texture of β-Si3N4/Stainless Steel Composites (3)-Multifractal Analysis of the Aggregated Morphology Texture―", Material Research Meeting 2019, Yokohama (2019/12)
Mariko Takeda, Kazuya Okubo, Yuka Mizukami, Yoshihiro Sato, Satoko Abe, Ryota Kobayashi, Yue Bao, Fumio Munakata, "Self-assembly Material Texture of β-Si3N4/Stainless Steel Composites (2)-Effect of Kneading Process and Thermal Conductivity―", Material Research Meeting 2019, Yokohama (2019/12)
Masashi Koga, Mariko Takeda, Kazuya Okubo, Yuka Mizukami, Yoshihiro Sato, Satoko Abe, Ryota Kobayashi, Yue Bao, Fumio Munakata, "Self-assembly Material Texture of β-Si3N4/Stainless Steel Composites (1)-Effect of Firing Process on the Formation of Agglomerated Texture", Material Research Meeting 2019, Yokohama (2019/12)
Masashi Koga, Mariko Takeda, Kazuya Okubo, Yuka Mizukami, Yoshihiro Sato, Kazuhiro Nemoto, Ryota Kobayashi, Yue Bao, Fumio Munakata, "Thermal Conductivity and Self-assembly Material Texture of β-Si3N4/Stainless Steel
Composites", The Seventh International Symposium on the New Frontiers of Thermal Studies of Materials, Yokohama (2019/11)
Emiko Fukushi, Hiroya Okazaki, Ryota Kobayashi, Koichi Harata, Takashi Goto, "Fabrication and evaluation of AlN ceramics containing AlN whiskers consolidated by spark plasma sintering", The 13th Pacific Rim Conference of Ceramic Societies (PACRIM13), Okinawa (2019/10)
Mako Ogawa, Naoki Ando, Ryota Kobayashi, "Fabrication and evaluation of luminescence characteristics of AlN whiskers doped with Fe, Mg, and MnO", The 13th Pacific Rim Conference of Ceramic Societies (PACRIM13), Okinawa (2019/10)
Ryota Kobayashi, Tatsuhiro Ishino, Kazuya Takase, Takeru Horibe, Akihito Tejima, Koichi Harata, "Densification and Thermal Conductivity of SUS316/AlN Whisker Composites Processed by Spark Plasma Sintering", The 13th Pacific Rim Conference of Ceramic Societies (PACRIM13), Okinawa (2019/10)
Yuka Mizukami, Yoshihiro Sato, Mariko Takeda, Kazuya Okubo, Ryota Kobayashi, Fumio Munakata, Yue Bao, "QUANTITATIVE EVALUATION OF PARTICLE DISTRIBUTION USING MULTIFRACTAL ANALYSIS", The 6th IIEEJ International Conference on Image Electronics and Visual Computing (IEVC 2019), Bali (2019/8)
Ryota Kobayashi, Kairi Abe, Hiroya Okazaki, Koichi Harata, Takashi Goto, "Densification Behavior and Properties of AlN Ceramics Containing Coarse AlN Particles", The 6th International Conference on the Characterization and Control of Interfaces for High Quality Advanced Materials and the 54th Summer Symposium on Powder Technology, ICCCI2018, Okayama (2018/7)
Ryota Kobayashi, Yoshihiro Nakajima, Kenji Mochizuki, Koichi Harata, Takashi Goto, Kentaro Iwai, Junichi Tatami, "Densification of AlN Ceramics by Spark Plasma Sintering at 1450oC", The 5th International Conference on the Characterization and Control of Interfaces for High Quality Advanced Materials and the 51st Summer Symposium on Powder Technology, ICCCI2015, Okayama (2015/7)
Ryota Kobayashi, Katsuyoshi Oh-ishi, Takashi Goto, Rong Tu, "Spark Plasma Sintering of AlN Ceramics With Y2O3-CaO Based Low-temperature Sintering Additives", 4th International Symposium on SiAlONs and Non-oxides, Shiga (2014/5)
K. Oh-ishi, K. Ogawa, D. Hirakawa, R. Kobayashi, "Site and Content of Oxygen Ions and Superconductivity of Ce0.15Nd1.85CuO4-y Cuprates with Different Oxygen Content", 2nd NCU/CHUO Chemistry Workshop, Tokyo (2012/8)
Ryota Kobayashi, Katsuyoshi Oh-ishi, Rong Tu, Takashi Goto, "Low Temperature Sintering of AlN Ceramics with Y2O3-CaO-B Additives", 2nd NCU/CHUO Chemistry Workshop, Tokyo (2012/8)
Hiroki Sata, Atushi Takeda, Shinji Nakanishi, Ryota Kobayashi, Katsuyoshi Oh-ishi, "Synthesis and magnetic properties of Ln18Li8Fe5O39 ( Ln = La, Nd, Sm, Y )", IUMRS-ICA2012, 13th International Conference in Asia, Busan (2012/8)
Kenji Ogawa, Daiju Hirakawa, Ryota Kobayashi, Katsuyoshi Oh-ishi, "Relation between Oxygen Content and Superconductivity of Ce0.15Nd1.85CuO4-y cuprate", IUMRS-ICA2012, 13th International Conference in Asia, Busan (2012/8)
H. Miyake, K. Tateishi, T. Ohnishi, R. Kobayashi, K. Oh-ishi, "Structural analysis and superconductivity of Mo7Re13C synthesized by the solid state method using planetary ball-milling machine", IUMRS-ICA2012, 13th International Conference in Asia, Busan (2012/8)
Toru Makino, Yuki Matsunaga, Ryota Kobayashi, Katsuyoshi Oh-ishi, "CO2 absorption behavior of Li2CuO2 and MgO being pulverized in CO2 atmosphere at room temperature by planetary ball milling process", IUMRS-ICA2012, 13th International Conference in Asia, Busan (2012/8)
Daijyu Hirakawa, Syuichirou Hamanaka, Ryota Kobayashi, Katsuyoshi Oh-ishi, "Oxygen defect, Superconductivity, and Site Potential Calculation for Oxygen Sites of Ce0.15Nd1.85CuO4-y", IUMRS-ICA2011, 12th International Conference in Asia, Taipei (2011/9)
R. Kobayashi, K. Oh-ishi, M. Yoshimura, "Electrostatic Potentials of Li4SiO4 Applied for Carbon Dioxide Absorbent", IUMRS-ICA2011, 12th International Conference in Asia, Taipei (2011/9)
Ryota Kobayashi, Katsuyoshi Oh-ishi, "Analyses of Microstructure and Oxygen Content Effects on Thermal Conductivity of AlN Ceramics by using Slack's Plot", 3rd International Congress on Ceramics, Osaka (2010/11)
Yuuki Matsunaga, Nobuaki Togashi, Takeshi Okumura, Yusuke Matsukura, Ryota Kobayashi, Katsuyoshi Oh-ishi, "Research on CO2 Absorption Behavior of Li-Metal Oxides by Thermogravimetric Analysis", 21st IUPAC International Conference on Chemical Thermodynamics, ICCT-2010, Ibaraki (2010/8)
Ryota Kobayashi, Katsuyoshi Oh-ishi, Masahiro Yoshimura, "Calculation of Electrostatic Potentials of Lithium Silicate Applied for Carbon Dioxide Absorbent ", 21st IUPAC International Conference on Chemical Thermodynamics, ICCT-2010, Ibaraki (2010/8)
Junichi Tatami, Ryota Kobayashi, Toru Wakihara. Takeshi Meguro, Katsutoshi Komeya, Rong Tu, Takashi Goto, "Mechanical and Electrical Properties of AlN-SiC Solid Solutions", 12th International Conference on Modern Materials and Technologies (CIMTEC 2010), Montecatini Terme (2010/6)
Ryota Kobayashi, Junichi Tatami, Toru Wakihara, Katsutoshi Komeya, Takeshi Meguro, Rong Tu, Takashi Goto, "Fabrication and evaluation of AlN-SiC solid solutions with p-type electrical conduction", 2nd International Symposium on SiAlONs and Non-oxides, Mie (2007/12)
Junichi Tatami, Ryota Kobayashi, Katsutoshi Komeya, Nanako Matsuzawa, Takeshi Meguro, Toru Wakihara, "Sintering Behavior of Silicon Carbide without Additive", 10th International Conference and Exhibition of the European Ceramic Society, Berlin (2007/6)
Ryota Kobayashi, Junichi Tatami, Toru Wakihara, Katsutoshi Komeya, Takeshi Meguro, "Electrical Properties of AlN-SiC Solid Solutions with Addition of Al4C3", The 31st International Cocoa Beach Conference & Exposition on Advanced Ceramics and Composites, Florida (2007/1)
Ryota Kobayashi, Junichi Tatami, Toru Wakihara, Katsutoshi Komeya, Takeshi Meguro, Rong Tu, Takashi Goto, I-Wei Chen, "Mechanical Properties of AlN-SiC Solid Solutions Fabricated by Spark Plasma Sintering", Th