• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Structure control of thermoelectric conversion materials by solidification with supercooling: Kinetics of crystallization process

Research Project

Project/Area Number 16K06137
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Thermal engineering
Research InstitutionIshikawa National College of Technology

Principal Investigator

Yoshioka Hideaki  石川工業高等専門学校, 機械工学科, 准教授 (80259845)

Co-Investigator(Kenkyū-buntansha) 加藤 亨  石川工業高等専門学校, 機械工学科, 教授 (50612016)
Co-Investigator(Renkei-kenkyūsha) TADA yukio  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords凝固 / 結晶成長 / 材料製造 / 熱電変換 / 過冷却 / 熱電変換材料 / 熱工学
Outline of Final Research Achievements

Crystallization process of compound formed by solidification with supercooling was studied with the aim to develop a high-speed producing method of high-performance thermoelectric materials. First, by the experiment using translucent organic solution, kinetics of crystal growth in the mushy zone consisting of facet polycrystalline layer was developed in relation to temperature and concentration fields around the growing crystals. Next, it was clarified that the thermoelectric power factor of bismuth tellurium alloy with controlled structure based on the kinetics is improved under the condition of high temperature gradient of supercooling.

Academic Significance and Societal Importance of the Research Achievements

過冷却を伴う結晶化プロセスに対する本研究成果による知見は,時系列で生じる凝固の素過程を連結し,ミクロな固相形成とマクロな輸送現象を連成するための基礎となる.また,本研究が提案する過冷却凝固法においては,多結晶層の指向性微細組制御が可能であり,発電用電子デバイスなどの機能環境材料の開発において,量産性と高性能を兼ね備えた新しい材料製造法を提案するものである.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (9 results)

All 2018 2017 2016

All Journal Article (6 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 2 results,  Open Access: 1 results) Presentation (3 results)

  • [Journal Article] 過冷溶融液からの化合物成長のその場観察2018

    • Author(s)
      井茂琢磨, 義岡秀晃
    • Journal Title

      日本機械学会熱工学カンファレンス講演論文集

      Volume: No.18-29 Pages: 1-5

    • NAID

      130007637724

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 溶融Bi-Te合金の相互拡散係数の測定2017

    • Author(s)
      義岡秀晃,井茂琢磨,伴場景太,加藤亨
    • Journal Title

      第54回日本伝熱シンポジウム講演論文集

      Volume: F321 Pages: 1-5

    • Related Report
      2017 Research-status Report
  • [Journal Article] Micro-solidification of Bi-Te alloy melts with non-uniform supercooling2016

    • Author(s)
      H.Yoshioka, T.Kato, Y.Tada
    • Journal Title

      The Fourth International Forum on Heat Transfer

      Volume: in USB(1850) Pages: 1-6

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 過冷却を伴う凝固と材料プロセスへの応用2016

    • Author(s)
      義岡秀晃
    • Journal Title

      JSME Thermal Engineering Division Newsletter

      Volume: No.79 Pages: 2-7

    • Related Report
      2016 Research-status Report
    • Open Access / Acknowledgement Compliant
  • [Journal Article] 過冷溶液中における化合物結晶の形態と成長2016

    • Author(s)
      井茂琢磨,義岡秀晃
    • Journal Title

      日本機械学会北陸信越支部 第45回学生員卒業研究発表講演会予稿集

      Volume: PS2-36 Pages: 1-2

    • Related Report
      2016 Research-status Report
  • [Journal Article] セルオートマトン法による自由結晶成長の数値シミュレーション2016

    • Author(s)
      杭田安加里,義岡秀晃
    • Journal Title

      日本機械学会北陸信越支部 第45回学生員卒業研究発表講演会予稿集

      Volume: PS2-35 Pages: 1-2

    • Related Report
      2016 Research-status Report
  • [Presentation] 高熱流束下の凝固プロセスによるバルク熱電半導体製造2018

    • Author(s)
      木立安希史,丹羽侑希,井茂琢磨,義岡秀晃
    • Organizer
      日本伝熱学会北陸信越支部秋季セミナー2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 化合物の自由結晶成長に関する研究2017

    • Author(s)
      井茂琢磨,義岡秀晃
    • Organizer
      日本伝熱学会北陸信越支部総会・春季セミナー
    • Related Report
      2017 Research-status Report
  • [Presentation] 溶融Bi-Te合金の相互拡散係数の温度依存性2016

    • Author(s)
      義岡秀晃,井茂琢磨,伴場景太,小林北斗,加藤亨
    • Organizer
      日本伝熱学会北陸信越支部秋季セミナー
    • Place of Presentation
      福井県坂井市
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi