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Microstructural Control of Laminated Compounds by the Modification of Pitches at Low Temperatures

Research Project

Project/Area Number 08405056
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 無機工業化学
Research InstitutionTOKYO INSTITUTE OF TECHNOLOGY

Principal Investigator

YASUDA Eiichi  Tokyo Institute of Technology, Materials and Structures Lab.Professor, 応用セラミックス研究所, 教授 (70016830)

Co-Investigator(Kenkyū-buntansha) OKUI Norimasa  Tokyo Institute of Technology, Faculty of Engineering Professor, 工学部, 教授 (20111651)
MATSUO Youtaro  Tokyo Institute of Technology, Faculty of Engineering Professor, 工学部, 教授 (70016608)
AKATSU Takashi  Tokyo Institute of Technology, Materials and Structures Lab.Associate, 応用セラミックス研究所, 助手 (40231807)
梶浦 尚志  東京工業大学, 大学院・総合理工学研究科, 学振特別研究員
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥25,800,000 (Direct Cost: ¥25,800,000)
Fiscal Year 1998: ¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 1997: ¥9,200,000 (Direct Cost: ¥9,200,000)
Fiscal Year 1996: ¥14,000,000 (Direct Cost: ¥14,000,000)
KeywordsPitch / Carbonization / Charge-transfer Complexes / Iodine / Carbon Yield / 炭素前駆体 / ヨウ素処理 / 組織制御 / 化学特性 / 反応機構 / 無機化合物添加 / 力学特性
Research Abstract

Precise evaluation on iodine-treated pitch has been carried out using FT-IR, pulsed-EPR, elemental analysis, ^<127>I-MR and viscometer for considering the reforming mechanism of pitch by iodine. Viscosity of pit h increased by 100。C iodine-treatment and de-hydration reaction took place during the iodine treatment. ^<127>I-NMR analysis reveled that almost iodine existed in pitch in a form of molecule or ion. Iodine made charge-transfer complexes with condensed aromatic molecules having ca.14 number of six-member-rings ; which was analyzed using pulsed-EPR etc.
Carbon yield increased and the size in microstructure of produced carbon decreased by iodine treatment. C/C composites could be produced without densification process, i.e. in autoclave, using pitches having low softening point. The composites maintained its shear strength after higher heat-treatment. Gas analysis during carbonization revealed that iodine played an important role on polymerization during the process.
Above the all results conclude as follows ; (1) iodine makes charge-transfer complex with molecules in pitch at low temperature and proceed de-hydration of the pitch. (2) Viscosity of the pitch increases, which results in good formability. (3) The microstructure of the produced carbon decreases.

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] H.Kajiura, Y.Tanabe and E.Yasuda: "Microstuctural Control of Pitch Matrix Carbon-carbon Composite by Iodiue Treatment" J.Mater.Res.13[2]. 302-307 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 安田榮一: "カーボンアロイとC/C複合材料" 日本エネルギー学会誌. 77[9]. 841-848 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Ishiguro, T.Akatsu, Y.Tanabe and E.Yasuda: "Shear Failure Behavior of Continuous Fiber Reinforced Ceramic Matrix Composites" Key Engineering Materials. 164-165. 171-174 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Kajiura, Y.Tanabe and E.Yasuda: "Microstructural Control of Pitch Matrix Carbon-carbon Composite by Iodine Treatment" J.Mater.Res.13[2]. 302-307 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Eiichi Yasuda: "Development of C/C Composite" Journal of the Japan Institute of Energy. 77[9]. 841-848 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Ishiguro, T.Akatsu, Y.Tanabe and E.Yasuda: "Shear Failure Behavior of Continuous Fiber Reinforced Ceramic Matrix Composites" Key Engineering Materials. 164-165. 171-174 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Kajiura,Y.Tanabe and E.Yasuda: "Microstructural Control of Pitch Matrix Carbon-carbon Composite by Iodine Treatment" J.Mater.Res.13[2]. 302-307 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 安田榮一: "カーボンアロイとC/C複合材料" 日本エネルギー学会誌. 77[9]. 841-848 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Ishiguro,T.Akatsu,Y.Tanabe and E.Yasuda: "Shear Failure Behavior of Continuous Fiber Reinforced Ceramic Matrix Composites" key Engineering Materials. 164-165. 171-174 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] H. Kajiura et al.: "Carbonization and Graphitization Behavior of iodine-treated Coal Tar Pith" Carbon. 35. 169-174 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] H. Shao et al.: "Layer-by-layer Polycondensation of Nylon 66 by Alternationg Vapour Deposition Polymerization" Polymer. 38. 459-462 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] E.YASUDA et al.: "Application of Iodine Treatment on a Fabrication of Pitch Based C/C Composites" Carbon and Carbomaceous Composite Materials. 409-417 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.KAJIURA et al.: "Stabilization of Pitch Derived Ultrafine Particle by Iodine Treatment" TANSO. 1996. 201-203 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 安田 榮一 他: "C/Cコンポジット" OHM. 83. 65-68 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 田中 諭 他: "C/Cコンポジットの引張りおよび層間せん断破壊エネルギーにおよぼすマトリックスの黒鉛化の影響" 日本セラミックス協会1996年講演予稿集. 478 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] S.D.KIM et al.: "Properties of CF/BN Composites" Proceedings of 12th Japan-Korea Seminor on Ceramics. 425-428 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.KIKUTANI et al.: "High Speed Melt Spinning of PET" International Polymer Processing. XI. 42-49 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.SHAO et al.: "Layer-by-layer Polycondensation of Nylon 66 by Alternationg Vapour Deposition Polymerization" Polymer. 38. 459-462 (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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