Nagoya University · Engineering
Professor Seiji Yamashita's research lab specializes in advanced ceramic materials and thermal energy storage systems, with a focus on developing high-performance composites and macrocapsules for extreme-temperature applications. The lab investigates self-lubricating ceramic composites, such as B₄C-SiC, to enhance wear resistance and friction performance under unlubricated conditions, while also pioneering innovative thermal storage materials like NaCl-Al₂O₃@SiC@Al₂O₃ macrocapsules for industrial waste heat recovery and concentrated solar power. Additionally, the lab explores smart navigation systems using visual sensing, demonstrating interdisciplinary innovation in materials science and applied technology. Their work consistently targets material stability, thermal efficiency, and practical scalability in energy and mechanical systems.
Figures are computed from collected data and may differ slightly.
Abstract A B 4 C‐SiC composite without annealing and two B 4 C‐SiC composites followed by annealing at 1000℃ and 1200℃ for 1 hour in air, respectively, were prepared. The tribological properties of the three composites were evaluated by sliding against SiC balls at room temperature under unlubricated conditions. The B 4 C‐SiC composite can obtain lower friction coefficient by annealing at 1000℃, whereas the friction coefficient of B 4 C‐SiC composite annealed at 1200℃ was significantly increased
This paper describes construction and experiments of the WYSIWYAS M-CubITS pedestrian navigation system. Taking pictures of M-CubITS elements on the floor, positioning of the camera is carried out by image processing. HMI is based on WYSIWYAS. It is confirmed that this navigation system works.
Developing thermal storage materials is crucial for the efficient recovery of thermal energy. Salt-based phase-change materials have been widely studied. Despite their high thermal storage density and low cost, they still face issues such as low thermal conductivity and easy leaks. Therefore, a new type of NaCl-Al2O3@SiC@Al2O3 macrocapsule was developed to address these drawbacks, and it exhibited excellent rapid heat storage and release capabilities and was extremely stable, significantly reduc
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