Development of thermal active devices

• Project/Area Number: 16K14384
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• Research Institution: Nagaoka University of Technology
• Principal Investigator: Nakayama Tadachika 長岡技術科学大学, 工学研究科, 准教授 (10324849)
• Co-Investigator(Kenkyū-buntansha): 床井 良徳 長岡工業高等専門学校, 電気電子システム工学科, 准教授 (80572742)
• Project Period (FY): 2016-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
• Keywords: 熱能動素子 / 三次元構造体 / 3Dプリント / セラミックス / 無機工業化学 / 先端機能デバイス / 熱工学

Outline of Final Research Achievements

We have studied active devices such as transistors and diodes in electronic devices for the purpose of heat. We designed, fabricated and evaluated thermal diodes which are the most fundamental active elements. In this research, a cup stack type three dimensional structure was designed. The reason for adopting this structure is that it can be expected that a change in heat conduction due to a change in structure at low temperature and high temperature can be expected and an anisotropic heat flow is predicted to be observed. Based on the obtained design, a three-dimensional structure was synthesized with a nano-level three-dimensional printer. The thermal diffusivity of the obtained material was measured.

Research Products

• [Int'l Joint Research] Hanyang University(韓国)
• [Int'l Joint Research] University of Bristol(英国)
• [Journal Article] Insulating polymer nanocomposites with high-thermal-conduction routes via linear densely packed boron nitride nanosheets (2016)
  • Author(s): H.-B. Cho, T. Nakayama, H. Suematsu, T. Suzuki, W. Jiang, K. Niihara, E. Song, N.S.A. Eom, S. Kim and Y.-H. Choa
  • Journal Title: Composites Science and Technology Volume: 129 Pages: 205-213
  • DOI: 10.1016/j.compscitech.2016.04.033
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Fabrication of stacked-cup carbon nanotube/polymer nanocomposite films with linear controlled percolation routes (2016)
  • Author(s): Huynh, M.T.T., Nakayama, T., Kawamoto, A., Nguyen, S.T., Suzuki, T., Suematsu, H., Niihara, K., Cho, H.-B., Choa, Y.-H.
  • Journal Title: Materials Chemistry and Physics Volume: 171 Pages: 39-44
  • DOI: 10.1016/j.matchemphys.2016.01.027
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Texture-controlled hybrid materials fabricated using nanosecond technology (2016)
  • Author(s): Cho, H.-B., Nakayama, T., Huynh, M.T.T., Nguyen, S.T., Jiang, W., Suzuki, T., Suematsu, H., Niihara, K., Shin, J.H., Choa, Y.-H.
  • Journal Title: Journal of the Ceramic Society of Japan Volume: 124 Issue: 3 Pages: 197-202
  • DOI: 10.2109/jcersj2.15215
  • NAID: 130005132943
  • ISSN: 1348-6535, 1882-0743
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] Fabrication and pressure sensitive property evaluation of stacked cup carbon nanotubes/polymer nanocomposite micro-films (2016)
  • Author(s): Huynh Tan Minh Triet, Tadachika NAKAYAMA
  • Organizer: EnCera 2017
  • Place of Presentation: 新潟県新潟市
  • Year and Date: 2016-05-12
  • Int'l Joint Research / Invited