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Development of measuring apparatus for thermophysical properties in a very small qyuantity of substances by means of ac calorimetric method

Research Project

Project/Area Number 01850007
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field Applied materials
Research InstitutionNagoya University, School of Engineering Grant-in-Aid for Developmetal Scientific Research (B) (2)

Principal Investigator

HATTA Ichiro  Nagoya University, School of Engineering, Department of Applied Physics, Professor, 工学部, 教授 (70016070)

Co-Investigator(Kenkyū-buntansha) 加藤 良三  真空理工株式会社, 開発本部, 室長
KATO Ryozo  Sinku-Riko Inc., Developmental Section Chief
Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥12,400,000 (Direct Cost: ¥12,400,000)
Fiscal Year 1991: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1990: ¥4,500,000 (Direct Cost: ¥4,500,000)
Fiscal Year 1989: ¥6,300,000 (Direct Cost: ¥6,300,000)
Keywordsac calorimetry / small sample / thermophysical properties / heat capacity / specific heat / thermal conductivity / thermal diffusivity / thermal analysis / 測定法
Research Abstract

A light-irradiation-type ac calorimeter has been developed for obtaining thermophysical properties in a small quantity of materials.
One of the aims in the present study is to measure the heat capacity of a small quantity of liquid. The sample cell is made of a very fine stainless steel tube, for instance, 130mum in inside diameter, 17Omum in outside diameter and 39mm long, which is filled with 0.52mul of a liquid sample. To obtain the absolute value of the heat capacity, evaluation of the heat capacity of the empty cell and the amplitude of ac heat flux supplied to the cell is necessary. For this purpose, the amplitude of ac temperature of the empty cell, the cell filled with a standard liquid and the cell filled with a liquid sample. From them, the heat capacity per unit volume of the liquid sample is obtained. In this measurement, the absolute value of heat capacity in liquid sample is determined within an accuracy of 1%. Using this method, the heat capacity of phospholipids in aqueous suspension was measured. The heat capacity in dipalmitoylphosphatidylcboline (DPPC)-cholesterol with cholesterol, concentrations up to 7 mol%. The heat capacity in DPPC-dimyristoylphosphatidylicholine (DMPC) mixtures was measured with special attention to the condition for the appearance of metastable state, which appears in pure DPPC and does not appear in pure DMPC. It was found that the metastable state no longer appears at the DMPC concentrations more than 50 mol%.
The measurement of thermal diffusivity or thermal conductivity is desirable to know the thermophysical properties of a small quantity of materials. A light-irradiation-type ac calorimetry was also applied to the measurement of thermal diffusivity in not only thin films but also fine wires.

Report

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

    (27 results)

All Other

All Publications (27 results)

  • [Publications] I.Hatta: "Development of ac calorimetric method for thermal diffusivity measurement lll.Heat loss in the measurement of fine wires" Jpn.J.Appl.Phys.29. 2851-2853 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 八田 一郎: "薄膜の熱物性測定" 熱物性. 4. 112-115 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Yuqin Gu: "Effect of sample edge in ac calorimetric method for measuring thermal diffusivity of thin films with high thermal diffusivity" Jpn.J.Appl.Phys.30. 1137-1138 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Yuqin Gu: "Development of ac calorimetric method for thermal diffusivity measurement lV;Films with low thermal diffusivity and very thin films" Jpn.J.Appl.Phys.30. 1295-1298 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 八田 一郎: "薄膜材料の熱物性" 伝熱研究. 30. 20-29 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] I.Hatta: "Heat capacity measurements with a.c.microcalorimetry" Pure and Applied Chemistry. 64. 79-86 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] I.Hatta: "ac calorimetric study of phase transitions in phophatidylcholine-cholesterol systems" J.Thermal Analysis.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 八田 一郎(分担執筆): "「第4版実験化学講座.第4巻熱・圧力」第4章非反応系・カロリメトリ-4・2・2交流法" 丸善株式会社, (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] B. G. Tenchov, H. Yao and I. Hatta: "Time-resolved x-ray diffraction and calorimetric studies at low scan rates I. Fully hydrated dipalimitoylphosphatidylcholine (DPPC) and DPPC/water/ethanol phases" Biophys. J.56-10. 757-768 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] I. Hatta: "Thermal diffusivity measurements of thin films and multilayered composites" Intern. J. Thermophys.11-2. 293-303 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] I. Hatta, H. Yao, R. Kato and A. Maesono: "Development of ac calorimetric method for thermal diffusivity measurement" Jpn. J. Appl. Phys.29-12. 2851-2853 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Yuqin Gu and I. Hatta: "Effect of sample edge in ac calorimetric method for measuring thermal diffusivity of thin films with high thermal diffusivity" Jpn. J. Appl. Phys.30-5. 1137-1138 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Yuqin Gu and I. Hatta: "Development of ac calorimetric method for thermal diffusivity measurement IV : Films with low thermal diffusivity and very thin films" Jpn. J. Appl. Phys.30-6. 1295-1298 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] I. Hatta: "Heat Capacity measurements with a. c. microcalorimetry" Pure and Applied Chemistry. 64-1. 79-86 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] I. Hatta, M. Okada, S. Matuoka and H. Yao: "ac calorimetric study of phase transitions in phosphatidylcholine-cholesterol systems" J. Thermal Analysis. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Yuqin Gu: "Effect of sample edge in ac calorimetric method for measuring thermal diffusivity of thin films with high thermal diffusivity" Jpn.J.Appl.Phys.30. 1137-1138 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Yuqin Gu: "Development of ac calorimetric method for thermal diffusivity measurement IV:Films with low thermal diffusivity and very thin films" Jpn.J.Appl.Phys.30. 1295-1298 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 八田 一郎: "薄膜材料の熱物性" 伝熱研究. 30. 20-29 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] I.Hatta: "Heat capacity measurements with a.c.microcalorimetry" Pure and Applied Chemistry. 64. 79-86 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] I.Hatta: "ac calorimetric study of phase transitions in phophatidylcholine-cholesterol systems" J.Thermal Analysis.

    • Related Report
      1991 Annual Research Report
  • [Publications] 八田 一郎(分担執筆): "「第4版実験化学講座第4巻熱・圧力」第4章非反応系・カロリメトリ-4・2・2交流法" 丸善株式会社, (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] I.Hatta: "Thermal diffusivity measurements of thin films and multilayered composites" International Journal of Thermodynamics. 11. 293-303 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] I.Hatta: "Development of ac Calorimetric Method for Thermal Diffusivity Measurement III.Heat Loss in the Measurement of Fine Wires" Jpn.J.Appl.Phys.29. 2851-2853 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 八田 一郎: "薄膜の熱物性測定" 熱物性. 4. 112-115 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] I.Hatta,R.Kato and A.Maesono: "Effect of inhomogeneaous heat irradiation in ac calori-metric thermal diffusivity measurement" Proceedings of the Second Asian Thermophysical Properties Conference. 133-135 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] I.Hatta,S.Hiraiwa and H.Tao: "An ac calorimetric thermal diffusivity measuring method for transparent materials" Proceedings of the Second Asian Thermophysical Properties Conference. 543-546 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] I.Hatta: "Thermal diffusivity measurements of thin films and multilayered composites" International Journal of Thermophysics. 11. 293-303 (1990)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2019-02-15  

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