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DEVELOPMENT OF EVALUATION EQUIPMENT FOR INTERFACIAL FUNCTIONS OF CERAMIC BASE COMPOSITES

Research Project

Project/Area Number 04555186
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 無機工業化学・無機材料工学
Research InstitutionTOKYO INSTITUTE OF TECHNOLOGY

Principal Investigator

YASUDA Eiichi  Tokyo Institute of Technology Research Laboratory of Engineering Materials Professor, 工業材料研究所, 教授 (70016830)

Co-Investigator(Kenkyū-buntansha) AKATSU Takashi  Tokyo Institute of Technology Research Laboratory of Engineering Materials Resea, 工業材料研究所, 助手 (40231807)
TANABE Yasuhiro  Tokyo Institute of Technology Research Laboratory of Engineering Materials Assoc, 工業材料研究所, 助教授 (70163607)
SAKAI Mototsugu  Toyohashi University of Technology Department of Materials Science Professor, 工学部, 教授 (50124730)
Project Period (FY) 1992 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥16,700,000 (Direct Cost: ¥16,700,000)
Fiscal Year 1994: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1993: ¥5,700,000 (Direct Cost: ¥5,700,000)
Fiscal Year 1992: ¥10,100,000 (Direct Cost: ¥10,100,000)
KeywordsInternal fricition / High temperature creep / Interface fracture / Modulus of Rigidity / Torsional resonance / Composites / tan delta / Dislocation / 複合材料内耗 / 内耗 / 界面 / クリープ / セラミックス
Research Abstract

Properties as high temperature creep, fracture toughness etc. of ceramic base composite is strongly affected by the interfacial bonding between fiber or whisker and matrix, however, there is no suitable way of direct measurement of interfacial bonding. The purpose of this research is to apply a stress into the composite introducing an interfacial shearing or debonding and then measure the internal friction to evaluatc the existence of interfacial debonding. Precisely speaking, (1) : development of the rigid joining fixer for measuring the amplitude dependency of the internal friction by torsion pendulum applicable at high temperature, (2) : Evaluation of the debonding behavior of the composite from the amplitude dependency, (3) : application of this technique to the carbon/carbon composite, (4) : Investigation of the application limit of the developed equipment. We succeeded in to develop a excellent equipment of internal friction tester with higher level of stress applicable. Following results were obtained ; (1) : The developed equipment was applicable up to 1500゚C and 2.5゚ as a maximum amplitude, which was higher than 270 MPa for MgO, (2) : The published data of C/C composite were collected, (3) : The internal friction data was correlated to the high temperature crecp data by applying the four elements model with springs and dash pots, (4) : In case of MgO polycrystalline materials, there were two peaks at 800゚C and 1200゚C,which were strongly dependent on the amplitude of the torsion exceeding the piers stress of the crystal. (5) : The viscosity of the interfacial glassy phase in silicon nitride ceramics can be estimated by the internal friction data.

Report

(4 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • 1992 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] E.Yasuda,A/Asano,M.Sakai & T.Akatsu: "Internal Friction of PYREX Glass and SiC Whisker-Reinforced Glass Matrix Composites" Report of the Research Laboratory of Engineering Materials,Tokyo Institute of Technology. 19. 71-79 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 赤津 隆、小久保信作、福田恭杉、田邉靖博、安田榮一: "ドクターブレ-ド法で作製したSiCウィスカ-/Al203複合材料中のウィスカ-配向" 日本複合材料学会誌. 20. 236-244 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Suzuki & M.Sakai: "A model for crack-face bridging" International Journal of Fracture. 65. 329-344 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Akatsu,Y.Tanabe & E.Yasuda: "Anisotropies and mechanical properties of hot-pressed Al_2O_3 and SiC-whisker/Al_2O_3 composites" Journal of Materials Research. 9. 207-215 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] E.Yasuda,I.Hayashi & T.Akatsu: "The Effect of Grain Size on the internal Friction of Polycrystalline MgO" Report of the Research Laboratory of Engineering Materials,Tokyo Institute of Technology. 20. 79-82 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] S.Yoon,T.Akatsu & E.Yasuda: "The microstructure and creep deformation of hot-pressed Si_3N_4 with different amounts of sintering additives" Journal of Materials Research. 11. 120-126 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] E.Yasuda, A.Asano, M.Sakai & T.Akatsu: ""Internal Friction of PYREX Glass and SiC Whisker Reinforced Glass Matrix Composites"" Report of the RLEM,T.I.Tech.No.19. 71-79 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Suzuki & M.Sakai: ""A model for crack-face bridging"" Int.J.of Fracture. Vol.65. 329-344 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Akatsu, Y.Tanabe & E.Yasuda: ""Anisotropies and mechanical properties of hot-pressed Al_2O_3 and SiC-whisker/Al_2O_3 composites"" Journal of Materials Research. Vol.9. 207-215 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] E.Yasuda, I.Hayashi & T.Akatsu: ""The Effect of Grain Size on the Internal Friction of Polycrystalline MgO"" Report of the RLEM., T.I.Tech.Vol.20. 79-82 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] S.Yoon, T,Akatsu & E.Yasuda: ""The microstructure and creep deformation of hot-pressed Si_3N_4 with different amounts of sintering additives"" Journal of Materials Research. Vol.11. 120-126 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] A.Asano,T.Akatsu,M.Sakai,E.Yasuda: "The Effect of SiC Whiskers on the Internal Friction of PYREX Glass" Proceeding of the annual meeting of the Japan Ceramic Society. 652 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] E.Yasuda,I.Hayashi,T.Akatsu: "The Effect of Grain Size on the Internal Friction of Polycrystalline MgO" Report of RLEM,TIT. No.20. 79-82 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] A.Asano,T.Akatsu,E.Yasuda: "Internal Friction of SiC-Whisker Reinforced Al_2O_3" Proceeding of the Basic Symposium of Ceramics. No.33. 24-25 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] E.Yasuda,S-Y.Yoon,& T.Akatsu: "The high temperature creep deformation and internal friction of hot-pressed silicon nitride" Proceeding of basic symposium on high temperature materials. No.12. 75-78 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] E.Yasuda,A.Asano,M.Sakai & T.Akatsu: "Internal friction of PYREX glass and SiC whisker reinforced glass matrix composite" Report of RLEM,T.I.T,. No.19. 1-9 (1994)

    • Related Report
      1993 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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