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Wettability of Solid-Liquid Interface under Microgravity (Dynamic Behavior of Interface in Space)

Research Project

Project/Area Number 01550506
Research Category

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

Allocation TypeSingle-year Grants
Research Field Physical properties of metals
Research InstitutionNagaoka University of Technology

Principal Investigator

FUKAZAWA Yasushi  Nagaoka University of Technology Engineering, Associate Professor, 工学部, 助教授 (10126477)

Co-Investigator(Kenkyū-buntansha) KANEKO Masaru  Nagaoka University of Technology Engineering, Associate Professor, 工学部, 助教授 (90161174)
OKADA Masaaki  Nagaoka University of Technology Engineering, Associate Professor, 工学部, 助教授 (60169117)
KOJIMA Yo  Nagaoka University of Technology Engineering, Professor, 工学部, 教授 (60016368)
Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1990: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1989: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywordsstatic wettability, / dynamic wettability, / microgravity / contact angle / image processing / capillary / interface / 動的漏れ性 / 表面張力 / 漏れ速度 / メニスコグラフ法 / 押出液滴法
Research Abstract

In the fabrication of metal-ceramic joint and composite materials, the wettability behavior must be considered to solve the interface phemomena. Especially, the further studies about the gravity is required to carry out the material experiments in space. Recently, many experimental procedures and analysis have been proposed and tried about the wettability, but a large part of methods have been operated only about the static condition without the bravityeffects. As these tests were made without some expeimetal conditions (dynamic condition, hysteresis, gravity ect.), the results had much difference and a few reproducibility among each tests. In order to observe the wettability in ground and space with considering the some experimental conditions, we proposed some new experimental methods and made the apparatus.
In this paper, I carried out the Growing Drop Method and Liquid Bridge Methods in space using an aircraftflyingparabollic ballictic trajectories and added Meniscogrph Method, Incl … More ined Plate and Parallel Plate methods on ground. The results were compared each other and it investigated that the effects of gravity on the wettability.
The following conclusions were obtained :
(1) Growing Drop Method. Contact angle was depended on the drop size at static condition. Advancing and receding contact angle was affected on growing speed. Wetting behaviors varied with a gravity level.
(2) Liquid Bridge Method. Liquid bridge shapes varied with the bridge aspect ratio and wettability onsolid-liquid interface. Contact angle at stable condition depended on the gravity level.
(3) Meniscograph Method. Dynamic wetting behaviors were analyzed with a thoritical fluid mechanic equations and depended on the immersion speed, viscosity and the hysteresis. Oxidation had an effect considerably on the wetting phenomena using the melting metal.
(4) Inclined Plate and Parallel Plate Method. The static contact angle can be evaluated from tase methods but there were some difference with another research results.
(5) Comparing the results of each methods. On the ground, the static contact angle values were almost same between growing drop method and Meniscograph method and the liquid bridge's result agree with the reducing contact angle for other method. Under microgravity, the static contact angle values became larger than another reducing contact angle values at the liquid bridge method. Less

Report

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

    (8 results)

All Other

All Publications (8 results)

  • [Publications] K.カイメン(1990-1)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 青柳成俊,福沢 康,古口日出男,岩里直久,岡田昌章,小島 陽: "メニスコグラフ法によるニュ-トン流体とガラスの濡れ挙動" 日本マイクログラビティ応用学会誌. Vol.7,2. 55-65 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] M.Okada,H.Tabata,Y.Fukuzawa,S.Kaneko,H.Sakuta,Y.Kojima,M.Hattori: "DETERMINATION OF INTERFACIAL TENSION AND CONTACT ANGLE BY VIDEO IMAGE PROCESSING OF SESSILE田DROPS OF LiBrーSOLUTION."" International Institute of Refrigeration Commission B1,Herzlia(ISRAEL). 211-217

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] AOYAGI, N. FUKUZAWA, Y. OKADA, M. KOJIMA, M. et. al: "Wetting of Glass by Ner Liquids with Meniscograph Method" The Japan Society of Microgravity Application. 7-2,. 55-65, (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] OKADA, M. FUKAZAWA, Y. KANEKO, S. KOJIMA, Y. et. al.: "Determination of Interfacial Tension and Contact Angle By Video Image Processing of Sessile Drops of LiBr-Solution" International Institute of refrigeration, Commission B1. 1990-1,. 211-217, (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] * 青柳 成俊,福沢 康,古口 日出男,岩里 直久,岡田 昌章,小島 陽: "メニスコグラフ法によるニュ-トン流体とガラスの濡れ挙動" 日本マイクログラビティ応用学会誌. Vol.7,2. 55-65 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] * M.Okada,H.Tabata,Y.Fukuzawa,S.Kaneko,H.Sakuta,Y.Kojima,M.Hattori: "DETERMINATION OF INTERFACIAL TENSION AND CONTACT ANGLE BY VIDEO IMAGE PROCESSING OF SESSILE DROPS OF LiBrーSOLUTION." International Institute of Refrigeration Commission B1,Herzlia(ISRAEL). 211-217 (1990-1)

    • Related Report
      1990 Annual Research Report
  • [Publications] 青柳成俊,福澤康,岡田昌章,小島陽: "メニスコグラフ法によるニュ-トン流体とガラスの漏れ挙動" マイクログラビティ-応用学会誌(JASMA). 7. (1990)

    • Related Report
      1989 Annual Research Report

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

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