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Reseacher

Name KOBAYASHI Ryota
Official Title Associate Professor
Affiliation Applied Chemistry, Science and Engineering
E-mail rkobaya@tcu.ac.jp
Web
  1. http://www.risys.gl.tcu.ac.jp/Main.php?action=profile&type=detail&tchCd=5001944
  2. http://www.imc.ese.tcu.ac.jp
Profile The main theme of my research is the processing of ceramics and their composite materials, and the control of material properties through the design of material textures and crystal structures. In particular, we are focusing on non-oxides ceramics such as carbides and nitrides, which have excellent environmental resistance and unique properties.
The goal is to create novel stuctural and functional materials that can respond to the harshness and diversification of material usage environments, while aiming for a wide range of applications from structural materials to functional materials, such as heat-dissipating insulating substrate materials for power devices, heat-resistant composites for engines and mechanical parts, environmentally resistant phosphors, and refractories.
Research Field(Keyword & Summary)
  1. (1) Sintering of non-oxide ceramics

    In this research theme, the process for densification of difficult-to-sinter non-oxide ceramics such as aluminum nitride are investigated. Specifically, applying spark plasma sintering and developing novel low-temperature sintering aids are studied.
Representative Papers
  1. (1) 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)
  2. (2) 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)
  3. (3) Synthesis of AlN needles by nitridation of Al-Si melt, Journal of the Ceramic Society of Japan, 124, pp1161-1163 (2016)
  4. (4) Densification of AlN Ceramics by Spark Plasma Sintering under 1550 C, Advanced Powder Technology, 27, pp860-863 (2016)
  5. (5) 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)
  6. (6) 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)
  7. (7) 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)
  8. (8) 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)
  9. (9) 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)
  10. (10) 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)
Grant-in-Aid for Scientific Research Support: Japan Society for Promotion of Science (JSPS) https://nrid.nii.ac.jp/en/nrid/1000030548136/
Recruitment of research assistant(s) No
Affiliated academic society (Membership type) (1) The Ceramic Society of Japan
(2) The Society of Powder Technology, Japan
Education Field (Undergraduate level) Inorganic Chemistry, Materials Science
Education Field (Graduate level) Inorganic Materials Processing

Affiliation