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Oxide Melts Studied by High Temperature High Pressure Calorimetry

Research Project

Project/Area Number 60470058
Research Category

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

Allocation TypeSingle-year Grants
Research Field 金属精錬・金属化学
Research InstitutionHokkaido University

Principal Investigator

YOKOKAWA Toshio  Department of Chemistry,Faculty of Science,Hokkaido University, 理学部, 教授 (60000783)

Co-Investigator(Kenkyū-buntansha) KAWAMURA Katsuyuki  Dipartment of Chemistry,Faculty of Science,Hokkaido University, 理学部, 助手 (00126038)
Project Period (FY) 1985 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 1987: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1986: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1985: ¥4,000,000 (Direct Cost: ¥4,000,000)
KeywordsHigh Temperature Calorimeter / Oxide Melts / Amorphous Material / シリカアルミナ系 / 融体 / 酸化物 / ホウ酸塩 / ケイ酸塩 / 高温高圧 / 電気化学
Research Abstract

Oxide melts like silicate,borate,and aluminosilicate are important in the field of metallurgy,glass ceramics as well as earth science.In the present progect it was intended to measure the thermodynamic heat contents directly in molten state in a calorimeter,along with other studies with electrochemical and spectroscopic techniques.
A high temperature calorimeter of Tian-Calvet type was constructed and applied to measure(1) the heat contents of silica-alumina non-crystalline powder prepared by the sol-gel method and(2) the heat of reaction of sodium carbonate with boric oxide melt.In the former, the powder samples of various heat treatment was dissolved in 2PbO・B_2O_3 solvent.Heat content variation which increases with the alumina content suggests coordination change around Al atom with heat treatment.In the latter,due to the viscous nature of the solution CO_2 evolution was not smooth enough to give reproducible results.This measurement was carried out to find proper condition to handle the system associated with water vapor.
A linear sweep voltammetry for redox equilibrium measurement was applied in varous melts in parallel with the calorimetry.Molecular bynamics simulations as well as quantum mechanical calculation were also attempted for better understanding of the oxide melts.

Report

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

    (46 results)

All Other

All Publications (46 results)

  • [Publications] A. Sasahira: Electrochimica Acta. 30. 441-448 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 前川尚: 窯業協会誌. 93. 20-27 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Uchida: J. Non-Crystall. solids. 74. 25-36 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T. Maekawa: Yogyo-Kyokai-Shi. 93. 63-68 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Shinmei: J. Chem. Thermodynamics. 18. 241-246 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T. Maekawa: Yogyo-Kyokai-Shi. 94. 318-323 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T. Maekawa: Yogyo-Kyokai-Shi. 94. 454-456 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Uchida: J. Non-Crystall. Solids. 85. 290-308 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N. Uchida: J. Non-Crystall. Solids. 88. 1-10 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T. Maekawa: Yogyo-Kyokai-Shi. 94. 1236-1238 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T. Yokokawa: Pure & Appl. Chem.58. 1547-1552 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 横川敏雄: 日本金属学会会報. 25. 3-7 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 内田希: 日本化学会誌. 1414-1424 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 河村雄行: 北海道大学大型計算機センター・ニュース. 13. 4-16 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T. Maekawa: Yogyo-Kyokai-Shi. 95. 287-294 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T. Maekawa: J. Non-Crystall. Solids. 95&96. 693-700 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M. Shinmei: High Tech. Ceramics. 727-736 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K. Kawamura: J. Electrochem. Soc.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Qiang Xu: J. Non-Crystall. Solids.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] A. Sasahira: in preparation.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] A,Sasahira: "Fe^<3+>/Fe^<2+> redox equilibrium in the molten Na_2O-B_2O_3 system by linear sweep voltammetry." Electrochimica Acta. 30. 441-448 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T,Maekawa: "Optical absorption spectra of V_k centers in alkali borate glasses containing various halide lons produced by X-ray irradiation." Yogyo-Kyokai-Shi. 93. 20-27 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N,Uchida: "An application of MNDO calculation to borate polyhedra." J. Non-Crystall. Solids. 74. 25-36 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T,Maekawa: "Optical absorption spectra of the pulse irradiated oxide glasses (Part II) Effects of scavenger lons on decay process in borate glasses." Yogyo-Kyokai-Shi. 93. 63-68 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M,Shinmei: "Thermodynamic study of si_2OF_6(g) from 723 to 1288 K by mass spectrometry." J. Chem. Thermodynamics. 18. 241-246 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T,Maekawa: "Optical absorption spectra of the pulse irradiated oxide glasses (Part 3) Effects of temperature on the decay process." Yogyo-Kyokai-Shi. 94. 318-323 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T,Maekawa: "Optical absorption spectra of the pulse irradiated oxide glasses (Part 4) The c1^-_ center in the microsecond time range." Yogyo-Kyokai-Shi. 94. 454-456 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K,Kawamura: "Molecular dynamics simulation system for silicate crystals/liquids as a design tool of inorganic materials." Center News of Computer Center, Hokkaido University. 18. 4-16 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N,Uchida: "MNDO stuidies of basicity in borate glasses." J. Non-Crystall. Solids. 85. 290-308 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N,Uchida: "Hard basicity of borate anion clusters." J. Non-Crystall. Solids. 88. 1-10 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T,Maekawa: "The X-ray fluorescence spectroscopy of inorganic solids (Part 8) Si and Al K_<<alpha>> energy shifts of Na_2O-SiO_2 and Al_2O_3-SiO_2 amorphous powders from hydrolysis of alkoxides." Yogyo-Kyokai-Shi. 94. 1236-1238 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T,Yokokawa: "Gas solubilities in molten salts and silicates." Pure & Appl. Chem.58. 1547-1552 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T,Yokokawa: "Optical basicity." Bull. Japan Inst. Metals. 25. 3-7 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] N,Uchida: "Molecular orbital approach o structures and basicity of binary borate glasses." Nippon Kagaku Kaishi. 1414-1424 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T,Maekawa: "Optical absorption spectra of the pulse irradiated oxide glasses (Part 5) The presence of the electron centers in the alkali silicate glasses in micro and milli second range." Yogyo-Kyokai-Shi. 95. 287-294 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T,Maekawa: "Pulse radiolysis studies on the oxide glasses." J. Non-Crystall. solids. 95 & 96. 693-700 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M,Shinmei: "Synthesis of fluorine doped silica and its defluorination behavior at high temperature." High Tech. Ceramics. 727-736 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K,kawamura: "Linear sweep voltammetry of Pb^<2+>/Pb^0 in oxide melts-Model and simulation of electrode process." J. Electrochem. Soc.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Qiang Xu: "Molecular dynamics calculations for boron oxide and sodium borate glasses." J. Non-Crystall. Solids.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] A,Sasahira: "Pb^<2+>/Pb^0 redox equilibria in sodium borate, silicate and alumino silicate melts."

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] K.Kawamura: Electrochimica Acta.

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Yokokawa: Pure and Appl.Chem.58. 1547-1552 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] N.Uchida: J.Non-crystalline Solids. 88. 1-10 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] M.Shinmei: Proc.6th World Cong.High Tech.Ceramics(1986).

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Maekawa: Yogyo-Kyokai-Shi. 94. 454-456 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Maekawa: Yogyo-Kyokai-Shi. 95. 287-294 (1986)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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