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2008 Fiscal Year Final Research Report

Study on relation between framework structure and negative thermal expansion property

Research Project

  • PDF
Project/Area Number 19560672
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic materials/Physical properties
Research InstitutionUniversity of Tsukuba

Principal Investigator

YAMAMURA Yasuhisa  University of Tsukuba, 大学院・数理物質科学研究科, 講師 (80303337)

Project Period (FY) 2007 – 2008
Keywords負の熱膨張 / フォノン / 熱物性 / フレームワーク構造 / 熱収縮
Research Abstract

温度上昇に伴い熱収縮する"負の熱膨張"を示す物質に共通する特徴を見出すために, 様々な負の熱膨張物質の原子の協同的な振動に由来する格子振動を検討した, その結果, 負の熱膨張物質に共通する三つの格子振動の特徴を明らかにすることに成功した. その三つの格子振動の特徴は, 物質の化学的・結晶構造的特徴と密接に関係することが明らかとなった. この研究成果により, 新しい負の熱膨張物質を創造する基礎を与えることができた.

  • Research Products

    (9 results)

All 2009 2008 2007

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (5 results)

  • [Journal Article] Characteristic phonon spectrum of negative thermal expansion materials with framework structure through calorimetric study of Sc_2M_3O_<12> (M = W and Mo)2009

    • Author(s)
      Yasuhisa Yamamura, Satoaki Ikeuchi,and Kazuya Saito
    • Journal Title

      Chemistry of Materials (印刷中)

    • Peer Reviewed
  • [Journal Article] 負の熱膨張物質の熱力学的特性と相転移現象2008

    • Author(s)
      山村泰久
    • Journal Title

      Netsu Sokutei 35

      Pages: 2-9

    • Peer Reviewed
  • [Journal Article] Possible Phonon Density of States of High-Temperature Phase Structure of the Negative Thermal Expansion Compound ZrW_2O_82007

    • Author(s)
      Yasuhisa Yamamura,and Kazuya Saito
    • Journal Title

      Journal of the Physical Society of Japan 76

      Pages: 123603-1-123603-4

    • Peer Reviewed
  • [Journal Article] Comprehensive Interpretation of Substitution Effect on an Order-Disorder Phase Transition in A_<1-x>M_xW_2O_<8-y>(A = Zr, Hf ; M = Trivalent Cations) and Other ZrW_2O_8-Based Solid Solutions2007

    • Author(s)
      Yasuhisa Yamamura, Kenichi Masago, Masayuki Kato,and Toshihide Tsuji
    • Journal Title

      The Journal Physical Chemistry B 111

      Pages: 10118-101221

    • Peer Reviewed
  • [Presentation] 負の熱膨張物質の設計についての熱力学的アプローチ2008

    • Author(s)
      山村泰久, 池内賢朗, 齋藤一弥
    • Organizer
      第44回熱測定討論会
    • Place of Presentation
      つくば
    • Year and Date
      2008-10-16
  • [Presentation] Phonon Property of High Temperature Phase Structure of Negative Thermal Expansion Materials ZrW_2O_82008

    • Author(s)
      Yasuhisa Yamamura, Kazuya Saito
    • Organizer
      62nd Calorimetry Conference (CALCON2007)
    • Place of Presentation
      Hawaii USA
    • Year and Date
      2008-08-07
  • [Presentation] Calorimetric Study of Negative Thermal Expansion Oxides2008

    • Author(s)
      Yasuhisa Yamamura
    • Organizer
      The 63^<rd> Calorimetry Conference (CALCON2008)
    • Place of Presentation
      Jersey City, New Jersey, USA
    • Year and Date
      2008-07-05
  • [Presentation] フレームワーク構造を有する負の熱膨張物質における特徴的なフォノン状態密度分布2008

    • Author(s)
      山村泰久, 池内賢朗, 齋藤一弥
    • Organizer
      日本セラミックス協会2008年年会
    • Place of Presentation
      長岡
    • Year and Date
      2008-03-21
  • [Presentation] 負の熱膨張物質の熱力学特性と相転移現象2007

    • Author(s)
      山村泰久
    • Organizer
      第43回熱測定討論会
    • Place of Presentation
      札幌
    • Year and Date
      2007-10-03

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Published: 2010-06-10   Modified: 2016-04-21  

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