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High-Temperature High-resolution Electron Microscopy by Image Recording

Research Project

Project/Area Number 61850117
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field Physical properties of metals
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

HIRABAYASHI Makoto  Professor, Institute for Materials Research, Tohoku Univ., 金属材料研究所, 教授 (00005836)

Co-Investigator(Kenkyū-buntansha) SHINDO Daisuke  Research Associate,Institute for Materials Research,Tohoku Univ., 金属材料研究所, 助手 (20154396)
KAJITANI Tsuyoshi  Research Associate,Institute for Materials Research,Tohoku Univ., 金属材料研究所, 助手 (80134039)
ONOZUKA Takashi  Research Associate,Institute for Materials research,Tohoku Univ., 金属材料研究所, 助手 (10005936)
HIRAGA Kenji  Associate Professor,Institute for Materials Research,Tohoku Univ., 金属材料研究所, 助教授 (30005912)
Project Period (FY) 1986 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥9,000,000 (Direct Cost: ¥9,000,000)
Fiscal Year 1987: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1986: ¥7,200,000 (Direct Cost: ¥7,200,000)
KeywordsTransmission Electron Microscopy / High-Resolution Imgar / Imsitu Observation / Phase Thransformation / 規則合金 / 画像記録処理 / 高温ステージ / 動的記録 / 高分解能観察 / 合金規則構造
Research Abstract

Atomic-scale observations by teansmission electron microscopy (TEM) have widely been applied in materials science, but still restricted for static scenes at ambient temperature. It is necessarily important, therefore, to make efforts for extending this method at higher and lower temperatures. In this project, we aimed to develop an in-situ observation system of high resolution electron microscopy at elevated temperatues for studying dynamical behaviors of structural phase transformations.
A 200 KV electroc mictoscope (JEOL-200 CX) is modified installing a double-tilt top-entry gonimeter which is capable to heat a specimen up to about 800゜C in combination with a newly designed pole-piece with C_s=1.0mm. A computer-aided system is utilized for recording dynamical changes of high resolution imager, and for calculating simulation images to analyze the observations.
Following experiments were carried out to testify the capability of this apparatus.
(1) Incommensurate-commensurate phase transformation of Ag_3Mg: When an alloy Ag_3Mg with non-integral period M=1.83 is heated in the microscope at about 320゜C, dynamical motion of discommensuration lines can be recorded for consecutive 2-3 hours with the use of a side-entry goniometer.
(2) Formation processes of CuAuII in CuAuI: Nucleation and growth processes of antiphase boundaries of the long-period superstrecture CuAuII in the matrix of CuAuI are observed in situ at about 300゜C using the top-entry gonimeter and the recording system.
(3) Ordering processes of Ni_4Mo: High resolution images on Ni_4Mo at an early stage of ordering form the disordered structure are observed inrterpreted well using the image-analysis system.

Report

(2 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report

Research Products

(20 results)

All Other

All Publications (20 results)

  • [Publications] 平林 真: Proc. XIth Int. Cong. Electron Microscopy. 3. 935-938 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 藤野 豊: Physical Review Letters. 58. 1012-1015 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 平林 真: 日本物理学会誌. 41. 908-912 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] H.Sato: Proc. '87 Conf. Phase Transition. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 平林 真: Trans.Japan Institute of Metals. 29. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 平賀 〓二: J. Electron Microscopy. 146. 245-260 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 藤田 英一: "High Resolution Electron Microscopy in "Microscopic Methods in Metals"" Springer-Verlag, 46 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Y. Fujino, H. Sato, M. Hirabayashi, E. Aoyagi, Y. Koyama: "In-situ Observation of Commensuration Process of Long-period Superlattice in the Ag-Mg Alloys" Physical Review Letters. 58. 1012-1015 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Hiraga, M. Hirabayashi: "Quenched phason Strains in Al-Mn-Si Cosahedral Quasicrystal Studied by High Resolution Electron Microscopy" J. Electron Microscopy. 36. 353-360 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] H. Sato, Y.Fujino, M. Hirabayashi, Y.Koyama: "Incommensurate-Commensurate Transition in the Long-Preiod Superlattice in Ag-Amg Alloys" Proc. '87 Conf. on Phase Transformations. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K.H. Lee, K. Hirage, D. Shindo, M. Hirabayashi: "High %resolution Electron Microscopic Study of the Ordering Processed in Ni_4 Mo Lloy" Acta Metall.36. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Hirabayashi: "Applications of High Resolution Electron Microscopy to Materials Research" Trans. Japan Institute of Metals. 29. 170-179 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] F.E. Fujita & M. Hirabayashi: Springer-verlag. High Resolution Electron Microscopy, im "Microscopic Methods in Methods"ed. Gonser, 29-74 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Y.Fujino;H.Sato;M.Hirabayashi;E.Aoyagi;Y.Koyama: Physical Review Letters. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Onozuka;N.Ohnishi;M.Hirabayashi: Metallurgical Transactions. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] K.Hiraga;M.Hirabayashi;A.Inoue;T.Masumoto: Journal of Microscopy. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] K.Hiraga;M.Hirabayashi: Japanese Journal of Applied Physics. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Onozuka;N.Otsuka;H.Sato: Physical Review B. 34. 3303-3312 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Onozuka;N.Ohnishi;T.Fukase;M.Hirabayashi: In-situ Experiments with High Voltage Electron Microscopes,Osaka Univ.113-116 (1985)

    • Related Report
      1986 Annual Research Report
  • [Publications] F.E.Fujita;M.Hirabayashi: "High Resolution Electron Microscopy,in Microscopic Methods in Metals,Topics in Current Physics,Vol.40" Springer-Verlag,Berlin,Heidelberg, 46 (1986)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-30   Modified: 2016-04-21  

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