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

Phase Transformation and Precipitation in Partially-Stabilized Zirconia

Research Project

Project/Area Number 01470061
Research Category

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

Allocation TypeSingle-year Grants
Research Field 金属材料(含表面処理・腐食防食)
Research InstitutionThe university of Tokyo

Principal Investigator

SAKUMA Taketo  Professor, University of Tokyo, 工学部, 教授 (50005500)

Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥6,900,000 (Direct Cost: ¥6,900,000)
Fiscal Year 1991: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1990: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1989: ¥3,900,000 (Direct Cost: ¥3,900,000)
Keywordszirconia / phase transformation / phase transition / microstructure / precipitation / spinodal decomposition / 微構造 / 熱力学 / 状態図 / 組織制御
Research Abstract

The microstructure formed by the cubic-to-tetragonal (c-t) transformation was examined in detail. The domain structure and plate-like or lenticular microstructures were developed in tetragonal zirconia (t-ZrO_2) generated by rapid cooling from high-temperature cubic phase (cZrO_2). The c-t transformation was always completed with a formation of the domain structure. The modulated structure characteristic of spinodal decomposition was found in ZrO_2-Y_2O_3 annealed in the c-t two-phase region. From the microstructural evidence, the author has proposed that the c-t transformation has a nature of second-order phase transition.
The thermodynamic analysis on the c-t equilibrium was made by assuming that this transformation is of the second-order type. The result satisfactorily explained the reported c-t equilibrium.

Report

(4 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • 1989 Annual Research Report
  • Research Products

    (34 results)

All Other

All Publications (34 results)

  • [Publications] T.Sakuma and H.Hata: "The domain structure of tetragonal Zirconia in ZrO_2-Y_2O_3 alloys" Aduances in Zirconia Science and Technology,Ed,by S.Meriani and C.Palmonari. 283-292 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y.Yoshizawa and T.Sakuma: "Evolution of microstructure and grain growth in ZrO_2-Y_2O_3 alloys" ISIJ International. 29. 746-752 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 佐久間 健人,畠 英雄: "ZrO_2ーY_2O_3の立方晶ー正方晶無拡散変態と微細組織" 日本金属学会誌. 53. 972-979 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y.Zhou,T.C.Lei and T.Sakuma: "Diftusionless cubic-to-tetragonal phase transition and microstructural evolution in sintered Zirconia-Yttria Ceramics" J.Am.Ceram.Soc.,. 74. 633-640 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M.Hillert and T.Sakuma: "Thermodynamic modeling of the c→t transtotmation in ZrO_2 alloys" Acta Metall.Mater.39. 1111-1115 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y.Zhou,Q.L.Ge,T.C.Lei and T.Sakuma: "Diftusional cubic-to-tetragonal phase transtormation and microstructural evlution in ZrO_2-Y_2O_3 ceramics" J.Mater.Sci.,. 26. 4461-4467 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 佐久間 健人: "セラミック材料学" 海文堂, 240 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sakuma: ""The diffusionless cubic-to tetragonal transition in partially-stabilized zirconia"" MRS International Meeting on Advanced Materials. 9. 505-516 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sakuma and H. Hata: ""The domain structure of tetragonal zirconia in ZrO_2-alloy"" Zirconia'88, Advances in Zirconia Science and Technology. Elsevier. 283-292 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y. Yoshizawa and T. Sakuma: ""Evolution of microstructure and grain growth in ZrO_2-Y_2O_3 alloys"" ISIJ Int.29. 746-752 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sakuma, Y. Yoshizawa and Y. Zhou: ""Intercritical annealing in the system ZrO_2-Y_2O_3"" Proc. 1st Jpn. SAMPE Symp.815-820 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sakuma and H. Hata: ""Diffusionless cubic-to-tetragonal transformation and microstructure in ZrO_2-Y_2O_3"" J. Jpn. Inst. Met.53. 972-979 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sakuma: ""Phase transformation and microstructure of high-strength toughened zirconia"" Kinzoku. 59. 43-47 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sakuma: ""Phase transformation and microstructure of high-strength toughened zirconia"" Refractory Material. 138. 9-19 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y. Zhou, Q, L. Ge, T. C. Lei and T. Sakuma: ""Microstructure and mechanical properties of ZrO_2-2mol%Y_2O_3 ceramics"" Ceram. Int.16. 349-354 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sakuma: ""Phase transformation in zirconia ceramics"" New Ceramics. 4. 53-56 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y. Zhou, T. C. Lei and T. Sakuma: ""Diffusionless cubic-to-tetragonal phase transition and microstructural evolution in sintered zirconia-yttria ceramics"" J. Am. Ceram. Soc.74. 633-640 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M. Hillert and T. Sakuma: ""Thermodynamic modeling of the c-t transformation in ZrO_2 alloys"" Acta Metall. Mater.39. 1111-1115 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y. Zhou, Q. L. Ge, T. C. Lei and T. Sakuma: ""Diffusional cubic-to-tetragonal phase transformation and microstructural evolution in ZrO_2-Y_2O_3 ceramics"" J. Mater. Sci.26. 4461-4467 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y.Zhou,T.C.Lei and T.Sakuma: "Dittusionless CubicーtoーTetragonal Phase Trausition and Microstructural Evolution in Sintered ZirconiaーYttria Ceramics" J.Am.Ceram.Soc.,. 74. 633-640 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Hillert and T.Sakuma: "Thermodynamic Modelling ot the C→t Traustormation in ZrO_2 Alloys" Acta Metall.Mater.,. 39. 1111-1115 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Y.Zhou,Q.L.Ge,T.C.Leiaud T.Sakuma: "Dittusional CubicーtoーTetragonal Phase Traustormation and Microstructural Evolution in ZrO_2ーY_2O_3 Ceramics" J.Mater.Sci.,. 26. 4461-4467 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 佐久間 健人: "ジルコニアセラミックスの相転移" ニュ-セラミックス. 4. 53-56 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 佐久間 健人: "セラミックスの組織制御" 金属. 61. 51-55 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 佐久間 健人: "高強度・高靭性ジルコニアの相変態と微細組織" 耐火材料. 138. 9-19 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 佐久間 健人: "ジルコニアセラミックスの相転移" ニュ-セラミックス.

    • Related Report
      1990 Annual Research Report
  • [Publications] M.Hillert,T.Sakuma: "Thermodynamic modeling of the cーt transformation in ZrO_2 alloys" Acta Metall.et Material.

    • Related Report
      1990 Annual Research Report
  • [Publications] 佐久間 健人: "セラミック材料学" 海文堂, 240 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Sakuma: "The diffusionless cubic-to-tetragonal transition in partially-stabilized Zirconia" MRS International Meeting on Advanced Materials. 9. 505-516 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] T.Sakuma,H.Hata: "The domain structure of tetragonal zirconia in ZrO_2-Y_2O_3 alloys" Advances in Zirconia Science and Technology,ed.by S.Meriani and C.Palmonari. 283-292 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Y.Yoshizawa,T.Sakuma: "Evolution of microstructure and grain growth in ZrO_2-Y_2O_3 alloys" ISIJ International. 29. 746-752 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] T.Sakuma,Y.Yoshizawa,Y.Zhou: "Intercritical annealing in the system ZrO_2-Y_2O_3" Proc.1st Int.SAMPE Symposium. 815-820 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 佐久間健人,畠英雄: "ZrO_2-Y_2O_3の立方晶-正方晶無拡散変態と微細組織" 日本金属学会. 53. 972-979 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 佐久間健人: "高強度・高靭性ジルコニアの相変態と微細組織" 金属. 59. 43-47 (1989)

    • Related Report
      1989 Annual Research Report

URL: 

Published: 1989-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi