Takaaki Koyanagi

Takaaki Koyanagi

R&D Staff

Takaaki Koyanagi joined ORNL in 2013 as a Postdoctoral fellow and is an R&D staff in Radiation Effects and Microstructural Analysis Group of Materials Science & Technology Division, Physical Science Directorate. His research interests include the development and characterization of refractory materials and their composites for high-temperature and severe-environment applications. This emphasizes the effects of neutron irradiation on the mechanical properties and microstructure of ceramics and fiber reinforced composites, highlighting ceramics matric composites and high temperature materials for nuclear fusion and fission applications. He received an Office of Science Early Career Award to develop a mechanistic framework for additive manufacturing of highly radiation resistant SiC for nuclear fusion applications. He has been leading “Development and Applications of Advanced Ceramics and Composites for Nuclear Fission and Fusion Energy Systems” symposium at International Conference & Exposition on Advanced Ceramics and Composites since 2019. 


  • Ph. D., Energy Science, Graduate School of Energy Science, Kyoto University, Japan, March 2013. Thesis: Constitutive Modeling of Irradiation Effects on Mechanical Properties of Silicon Carbide Composites.
  • M. S., Graduate School of Energy Science, Kyoto University, March 2010.
  • B. Sc., School of Engineering Science, Faculty of Engineering, Kyoto University, March 2008.

• The Minerals, Metals & Materials Society, Frontiers of Materials Award (2024)
• Mid Career Award, Materials Science Technology Division Annual Awards, Oak Ridge National Laboratory (2023)
• Masaji Yoshikawa Memorial Prize for Fusion Energy Award, Fusion Energy Forum of Japan (2022)
• Journal of Nuclear Materials “Rising Start Award” finalist (2022)
• Global Star Award, Engineering Ceramics Division, American Ceramics Society (2020)