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Microwave Processing of Functional Materials with Mesoscopic Structure

Research Project

Project/Area Number 17360315
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic materials/Physical properties
Research InstitutionTohoku University

Principal Investigator

TAKIZAWA Hirotsugu  Tohoku University, Graduate School of Engineering, Professor (90226960)

Co-Investigator(Kenkyū-buntansha) HAYASHI Yamato  Graduate School of Engineering, 大学院・工学研究科, Assistant Professor (60396455)
Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥11,680,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥780,000)
Fiscal Year 2007: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2006: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2005: ¥5,400,000 (Direct Cost: ¥5,400,000)
Keywordsceramics / mesoscopic system / nano materials / spinodal decomposition / functionally graded materials / microwave processing / oriented structure / non-equilibrium processing / 薄膜 / ナノ材科 / コーティング
Research Abstract

Microwave heating is rapidly becoming an established procedure for inorganic synthesis. In this study, various inorganic materials with nano- or meso-scopic structure were successfully synthesized by microwave irradiation and the nature of the "non-equilibrium reaction field" was systematically analyzed in a view point of "microwave selective heating". Rutile-type solid solution, TiO_2-SnO_2, was successfully synthesized within 900 s of microwave irradiation. In the diffraction pattern of the specimen treated at 1100℃, splitting due to spinodal decomposition was observed for (hkl: 1≠0) diffraction peaks. The occurrence of spinodal decomposition was also confirmed by TEM observation. Lamellar structure with the modulation cycle of 10-30nm was observed. In the binary TiO_2-SnO_2 system, lower limit of the solid solution range is at 1350℃ (Ti/Sn=1/1) from the equilibrium phase diagram. In this study, however, formation of solid solution was completed at 1100℃, which was lower than that expected by the phase diagram. The experimental results suggest the following mechanism of the formation of the mesoscopic structure. When microwaves are irradiated on the powder mixture of TiO_2 and SnO_2, SnO_2 particles are selectively heated to higher temperature and react with TiO_2 particles to form Ti_<1-x>Sn_xO_2 solid solutions. Anisothermal condition is maintained in a certain period and the temperature fluctuation within a microscopic scale induces spinodal decomposition, consequently, the formation of mesoscopic lamellar structure. Similar type of meso-scopic structure was also synthesized in binary Fe_3O_4-FeAl_2O_4 system. It is concluded that microwave selective heating plays a key role on fabricating non-equilibrium structures like nano-, meso-scopic modulated composites and thin film devices.

Report

(4 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (39 results)

All 2008 2007 2006 2005 Other

All Journal Article (17 results) (of which Peer Reviewed: 8 results) Presentation (21 results) Book (1 results)

  • [Journal Article] Microstructural Control of the TiO_2-SnO_2 Binay System and Synthesis of SnO_2 Nanowhiskers by Microwave Irradiation2008

    • Author(s)
      T. Aoyagi
    • Journal Title

      Materials Transactions 49

      Pages: 879-884

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] マイクロ波選択加熱を利用した無機材料合成2008

    • Author(s)
      滝沢博胤
    • Journal Title

      材料の科学と工学 45(印刷中)

    • NAID

      10024353185

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Microstructural Control of the TiO_2-SnO_2 Binary System and Synthesis of SnO_2 Nanowhiskers by Microwave Irradiation2008

    • Author(s)
      T. Aoyagi
    • Journal Title

      Materials Transactions 49-4

      Pages: 879-884

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Synthesis of Inorganic Materials by Microwave Selective Heating2008

    • Author(s)
      H. Takizawa
    • Journal Title

      Materials Science and Technology 45-3(in press)

    • NAID

      10024353185

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Microstructural Control of the TiO_2-SnO_2 Binary System and Synthesis of SnO_2 Nanowhiskers by Microwave Irradiation2008

    • Author(s)
      Takuya Aoyagi
    • Journal Title

      Materials Transactions 49(印刷中)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 機能性セラミックスのマイクロ波プロセッシング2007

    • Author(s)
      滝沢博胤
    • Journal Title

      Ceramic Data Book 35

      Pages: 128-132

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Microwave Processing of Advanced Ceramics2007

    • Author(s)
      H. Takizawa
    • Journal Title

      Ceramic Data Book 35-89

      Pages: 128-132

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] 機能性セラミックスのマイクロ波プロセッシング2007

    • Author(s)
      滝沢博胤
    • Journal Title

      Ceramic Data Book 2007 35

      Pages: 128-132

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ミリ波による金属の加熱と反応2006

    • Author(s)
      滝沢博胤
    • Journal Title

      まてりあ 45

      Pages: 577-580

    • NAID

      10019296057

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Millimeter-wave Processing of Metals and Intermetallic Compounds2006

    • Author(s)
      H. Takizawa
    • Journal Title

      Materia Japan 45-8

      Pages: 577-580

    • NAID

      10019296057

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Microwave Synthesis of Inorganic Materials2006

    • Author(s)
      H. Takizawa
    • Journal Title

      Microwave-assisted Chemical Process Technology (CMC Publishing)

      Pages: 173-181

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] ミリ波による金属の加熱と反応2006

    • Author(s)
      滝沢博胤
    • Journal Title

      まてりあ 45・8

      Pages: 577-580

    • NAID

      10019296057

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Low-temperature growth of high-quality lead zirconate titanate thin films by 28 GHz microwave irradiation2005

    • Author(s)
      Z.J. Wang
    • Journal Title

      Applied Physics Letters 86

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Electrical Properties and Microstructures of Sol-Gel-Deposited Lead Zirconate Titanate Thin Films Crystallized by 28 GHz Microwave Irradiation2005

    • Author(s)
      Z.J. Wang
    • Journal Title

      Japanese Journal of Applied Physics 44

      Pages: 6914-6917

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Low-temperature growth of high-quality lead zirconate titanate thinfilms by 28 GHz microwave irradiation2005

    • Author(s)
      Z. J. Wang
    • Journal Title

      Applied Physics Letters 86-21

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Electrical Properties and Microstructures of Sol-Gel-Deposited LeadZirconate Titanate Thin Films Crystallized by 28 GHz Microwave Irradiation2005

    • Author(s)
      J. J. Wang
    • Journal Title

      Japanese Journal of Applied Physics 44-9B

      Pages: 6914-6917

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Low-temperature growth of high-quality lead zirconate titanate thin films by 28 GHz microwave irradiation2005

    • Author(s)
      Z.J.Wang
    • Journal Title

      Applied Physics Letters 86・21

    • Related Report
      2005 Annual Research Report
  • [Presentation] Microstructure Control of TiO_2-SnO_2 Binary System by Microwave Irradiation2008

    • Author(s)
      T. Aoyagi
    • Organizer
      The 9th International Symposium on Eco-materials Processing and Design
    • Place of Presentation
      Changwon Exhibition Convention Center, Korea
    • Year and Date
      2008-01-08
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microstructure Control of TiO_<2>-SnO_2 Binary System by Microwave Irradiation2008

    • Author(s)
      T. Aoyagi
    • Organizer
      The 9^<th> International Symposium on Eco-materials Processing and Design
    • Place of Presentation
      Changwon Exhibition Convention Center, Changwon, Korea
    • Year and Date
      2008-01-08
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] マイクロ波選択加熱下における二成分系酸化物の微細構造制御2007

    • Author(s)
      青柳拓也
    • Organizer
      第1回日本電磁波エネルギー応用学会シンポジウム
    • Place of Presentation
      仙台市戦災復興記念館
    • Year and Date
      2007-09-27
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microstructure Control of Binary Systems of Oxides Using Selective Microwave-Heating2007

    • Author(s)
      T. Aoyagi
    • Organizer
      The First Symposium of Japan Society of Electromagnetic Wave Energy Applications
    • Place of Presentation
      Sendai City War Reconstruction Memorial hall, Sendai, Japan
    • Year and Date
      2007-09-27
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] マイクロ波プロセスを用いたSnO_2:Nb薄膜の作製と透明導電性の評価2007

    • Author(s)
      米澤岳洋
    • Organizer
      第1回日本電磁波エネルギー応用学会シンポジウム
    • Place of Presentation
      仙台市戦災復興記念館
    • Year and Date
      2007-09-26
    • Related Report
      2007 Annual Research Report
  • [Presentation] マイクロ波照射による酸化物系の微細構造制御2007

    • Author(s)
      青柳拓也
    • Organizer
      日本セラミックス協会第20回秋季シンポジウム
    • Place of Presentation
      名古屋工業大学
    • Year and Date
      2007-09-13
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] Microstructure Control of Oxides by Microwave Irradiation2007

    • Author(s)
      T. Aoyagi
    • Organizer
      20^<th> Fall Meeting of The Ceramic Society of Japan
    • Place of Presentation
      Nagoya Institute of Technology, Nagoya, Japan
    • Year and Date
      2007-09-13
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] マイクロ波照射によるスピノーダル分解を利用した鉄複酸化物メゾ構造体の合成と磁気的性質2007

    • Author(s)
      岡田福太郎
    • Organizer
      第45回セラミックス基礎科学討論会
    • Place of Presentation
      仙台国際センター
    • Year and Date
      2007-01-23
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microwave Synthesis and Magnetic Properties of Iron Complex Oxide with Meso Structure by the Spinodal Decomposition2007

    • Author(s)
      F. Okada
    • Organizer
      The 45^<th> Symposium on Basic Science of Ceramics
    • Place of Presentation
      Sendai International Center, Sendai, Japan
    • Year and Date
      2007-01-23
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] マイクロ波照射による鉄複酸化物のメゾ組織化と磁気的性質2006

    • Author(s)
      岡田福太郎
    • Organizer
      第6回マイクロ波効果・応用国際シンポジウム
    • Place of Presentation
      ソフトピアジャパンセンター(岐阜県大垣市)
    • Year and Date
      2006-11-03
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] マイクロ波プロセスによるTiO_2-SnO_2系メゾスコピック組織の形成2006

    • Author(s)
      青柳拓也
    • Organizer
      第6回マイクロ波効果・応用国際シンポジウム
    • Place of Presentation
      ソフトピアジャパンセンター(岐阜県大垣市)
    • Year and Date
      2006-11-03
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Meso Organization and Magnetic Property of Iron Complex Oxide by Microwave Irradiation2006

    • Author(s)
      F. Okada
    • Organizer
      The 6^<th> Symposium on Microwave Science and Its Application to Related Fields
    • Place of Presentation
      Softopia Japan, Ogaki, Japan
    • Year and Date
      2006-11-03
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Formation of Mesoscopic Structure by Microwave Process on TiO_<2>-SnO_22006

    • Author(s)
      T. Aoyagi
    • Organizer
      The 6^<th> Symposium on Microwave Science and Its Application to Related Fields
    • Place of Presentation
      Softopia Japan, Ogaki, Japan
    • Year and Date
      2006-11-03
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] スピノーダル分解を利用したメゾスコピック酸化物のマイクロ波合成と磁気的性質2006

    • Author(s)
      岡田福太郎
    • Organizer
      日本セラミックス協会第19回秋季シンポジウム
    • Place of Presentation
      山梨大学甲府キャンパス
    • Year and Date
      2006-09-20
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microwave Synthesis and Magnetic Properties of Mesoscopic Oxides Using Spinodal Decomposition2006

    • Author(s)
      F. Okada
    • Organizer
      19^<th> fall Meeting of The Ceramic Society of Japan
    • Place of Presentation
      Yamanashi University, Kofu, Japan
    • Year and Date
      2006-09-20
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microwave Processing of Oxide Ceramics with Mesoscopic Structure2006

    • Author(s)
      H. Takizawa
    • Organizer
      International Synposinm on the Microwave Processing in Iron-and Steelmaking, and Environmental Protection
    • Place of Presentation
      東京大学生産技術研究所
    • Year and Date
      2006-03-06
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microwave Processing of Oxide Ceramics with Mesoscopic Structure2006

    • Author(s)
      H. Takizawa
    • Organizer
      International Synposium on the Microwave Processing in Iron- and Steelmaking, and Environmental Protection
    • Place of Presentation
      The University of Tokyo, Tokyo, Japan
    • Year and Date
      2006-03-06
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microwave Processing of Oxide Ceramics with Nano-Layered Structure2006

    • Author(s)
      H. Takizawa
    • Organizer
      The Symposium on Hybrid Nano Materials Toward Future Industries
    • Place of Presentation
      Nagaoka University of Technology, Japan
    • Year and Date
      2006-02-05
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] メゾスコピック組織を有する(Fe_<1-X>Cr_X)_2O_3のマイクロ波合成と磁気的性質2005

    • Author(s)
      岡田福太郎
    • Organizer
      第5回マイクロ波効果・応用国際シンポジウム
    • Place of Presentation
      産業技術総合研究所つくばセンター
    • Year and Date
      2005-11-03
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microwave Synthesis and Magnetic Properties of (Fe_<1-x>Cr_x)_<2>O_3 with a Mesoscopic Structure2005

    • Author(s)
      F. Okada
    • Organizer
      The 5^<th> Symposium on Microwave Science and Its Application to Related Field
    • Place of Presentation
      AIST, Tsukuba, Japan
    • Year and Date
      2005-11-03
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Microwave Processing of Oxide Ceramics with Nano-Layered Structure

    • Author(s)
      H. Takizawa
    • Organizer
      The Symposium on Hybrid Nano Materials Toward Future Industries (HNM2006)
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Book] マイクロ波化学プロセス技術 第4編第1章「無機材料合成」2006

    • Author(s)
      滝沢博胤
    • Publisher
      シーエムシー出版
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary

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Published: 2005-04-01   Modified: 2016-04-21  

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