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Topic-specified CRP_2022

Abstracts of Topic-Specified Collaborative Research Projects
1. Establishment and Development of Heat Transfer Control Technology Using Phase Transition Phenomena

Representative: Hitoshi Kawaji

The control of thermal conductivity is an important issue in the heat generation and dissipation of advanced electronic devices such as highly integrated circuit, and in energy and environmental technologies such as batteries, power generation, and automobile engines. The development of new functional heat conduction control materials becomes important. In materials with metal-insulator phase transitions lead to rapid changes in thermal conductivity as well as changes in electrical conductivity. We will elucidate the phase transition mechanism of such materials whose thermal conductivity changes with external field and temperature, and develop the technology to control the thermal conductivity by compositing them with various materials.

2. Fabrication of single-nanoscale electronic materials and development of devices

Representative: Yutaka Majima

There still exist plenty of room at the bottom. When the size of electronic materials is reduced less than 10 nm, quantum mechanical effects and various physical phenomena on a single grain start to be observed. The semiconductor chips in smartphones are now manufactured by using a semiconductor fabrication technology node less than 10 nm, however, the same operating principles of transistors and memories have been used more than 20 years. In this project, we will fabricate single-nanoscale electronic materials by using electron-beam lithography, develop nanodevices, and demonstrate novel phenomena different from bulk electronic properties and electronic properties in a single grain.

3. Seismic Design for Functional Continuity of Building Structures
Representative: Shoichi Kishiki

Building structures are required to perform multiple roles, and in order to reduce economic losses due to earthquakes, it is necessary to establish seismic design for functionally continuity. In addition, it is necessary to clarify the seismic performances and damage state of not only structural members, but also non-structural components and building equipment to provide better performance. In this research, we will conduct experiments using dynamic actuator or bi-directional loading system on non-structural components and building equipment. Based on these results, seismic design to mitigate damage will be discussed.

4. Development of life innovation materials with assist of inverse design 
Representative: Toshio Kamiya

Laboratory for Materials and Structures (MSL) has conducted a trans-university joint project for developing life innovation materials, which will contribute to resolving the current social issues such as energy, resources, environment, and medical, and consequently providing sustainable and comfortable life to us. Though this project ends in FY 2020, we continue to conduct related collaboration researches. From 2021, more focus will be given to assistance by computational materials design, data science etc. Thereby we would develop novel functional materials based on our original materials and design concepts such as those utilizing unconventional structures and functions in inorganic and metal materials.

5. Development of New Functionalities in Abundant Element Materials

Representative: Hidenori Hiramatsu

Development of new functionalities with abundant element systems is not only important but also timely. The functionalities that should be targeted mainly include electronics device functionalities. Bulk synthesis and film growth study, structural, electronic and magnetic characterization, and theoretical study are all relevant for the present project.


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