Lab Policies

■independent：things one wants to do can be achieved in one's way with few restrictions when the attitude is changed from passive to active.

■cooperative：Lab is like society and familiy where a lot of things can be learned and then created.

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Research Topics

• 1.Development of Highly Reliable Advanced Ceramic-Based Composites
  Generally, ceramics show brittle fracture behavior, resulting in low reliability as structual parts. In order to improve their reliability, ceramics reinforced with continuous ceramic fibers, i.e. continuous ceramic fiber-reinforced ceramic matrix composites (CMC) have been paid attention as next-generaton highly reliable heat-resistant materials. CMC have been expected to be used as the components for nuclear and fusion power applications, high temperature gas turbines and aerospace industries. Novel fabrication process of CMCs, their properties, and advanced ceramic-based composites with unipue morphology have been also studied.
  

  SEM micrograph of silicon carbide fiber-reinforced silicon carbide matrix (SiC_f/SiC) composites

• 2.Development of High-Performance Porous Ceramics
  Ceramics have been recognized as an important materials that support industries in various fields along with metals and polymers, and they play a very important role in the green growth strategy formulated by Japanese goverment. We aim to develop ceramics which will contribute to carbon neutral society, and are developing highly reliable heat-resistant materials for aerospace industries, next generation nuclear and fusion reactors etc., thermal management materials (Fig. 2), low-friction and wear-resistant materials, and plasma-resistant materials for semiconductor production etc. In addition, we are also exploring green processes for ceramics.
  
  SEM micrograph of porous silicon carbide (SiC) ceramics with in-situ grain growth
  
• 3.Development of Severe Environment Resistant Ceramics
  Changes in properties and microstructure of ceramics exposed under severe environment such as high temperatures, high thermal gradient, corrosive and oxidizing atmosphere, radiation and particles irradiation have been studied, and we have been developing severe environment resistant ceramics.. As examples of nuclear and fusion applications, novel ceramics for accident tolerant fuels for light water reactors and high temperature gas-cooled reactors, and high-performance neutron absorbing ceramic pellets for fast reactorsIn consideration of nuclear and fusion applications, novel ceramics for accident tolerant fuels, high-performance neutron absorbing ceramic pellets for fast reactors, based on microstructure control, have been studied.

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