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Relationship between thermal conductivity and network structure of molten silicates

Research Project

Project/Area Number 23360332
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Metal making engineering
Research InstitutionTohoku University

Principal Investigator

SHIBATA HIROYUKI  東北大学, 多元物質科学研究所, 教授 (50250824)

Co-Investigator(Kenkyū-buntansha) WASEDA Yoshio  東北大学, 多元物質科学研究所, 名誉教授 (00006058)
OHTA Hiromichi  茨城大学, 工学部, 教授 (70168946)
SUKENAGA Souhei  東北大学, 多元物質科学研究所, 助教 (20432859)
Project Period (FY) 2011-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2013: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2011: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
Keywords珪酸塩融体 / 熱伝導率 / ネットワーク構造 / 珪酸塩 / 非架橋酸素 / NMR / レーザーフラッシュ法 / ネートワーク構造 / 温度依存性 / 組成依存性
Research Abstract

The effect of addition of K2O, Na2O, CaF2 and Al2O3 on thermal conductivity of molten silicate was investigated by using the front heating-front detection laser flash method. The thermal conductivities of molten silicates showed insignificant temperature dependence in liquid region. The measured thermal conductivity values decreases with increasing value of NBO/T(Non-bridging Oxygen ions/Tetrahedrally coordinated cation). The network structure of silicate melts was modeled in three dimensions to estimate the effect of decoupling behavior of silicate melts on thermal conduction through silicate network chains.The effect of amount of non-bridging oxygen on thermal conductivity of the 3D model of silicate melts was obtained.The obtained values of thermal conductivity gradually decreased with increasing NBO/T. This tendency agrees with that for the measured thermal conductivity.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (23 results)

All 2014 2013 2012 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (17 results)

  • [Journal Article] Thermal Conductivity of Molten Silicate of Al_2O_3-CaO-Na_2O-SiO_2 Measured by Means of a Front Heating-Front Detection Laser Flash Method2012

    • Author(s)
      Hiroki Hasegawa, Takaya Kowatari, Yasuhiro Shiroki, Hiroyuki Shibata, Hiromichi Ohta, Yoshio Waseda
    • Journal Title

      Metallurgical and Materials Transactions B

      Volume: 43(6) Pages: 1413-1419

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Thermal Conductivity Measurements of Some Synthetic Al_2O_3-CaO-SiO_2 Slags by Means of a Front-Heating and Front-Detection Laser-Flash Method2012

    • Author(s)
      Hiroki Hasegawa, Yasuhiro Hoshino, Takeshi Kasamoto, Yuuki Akaida, Takaya,Kowatari, Yasuhiro Shiroki, Hiroyuki Shibata, Hiromichi Ohta, Yoshio Waseda
    • Journal Title

      Metallurgical and Materials Transactions B

      Volume: 43(6) Pages: 1405-1412

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Recent Development in the Investigation on Thermal Conductivity of Silicate Melts High Temperature Materials and Processes2012

    • Author(s)
      Hiroki Hasegawa, Hiromichi Ohta, Hiroyuki Shibata, Yoshio Waseda
    • Volume
      31(4-5)
    • Pages
      491-499
    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Recent Development in the Investigation on Thermal Conductivity of Silicate Melts2012

    • Author(s)
      Hiroki Hasegawa
    • Journal Title

      High Temperature Materials and Processes

      Volume: 31 Pages: 491-499

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermal Conductivity Measurements of Some Synthetic Al2O3-CaO-SiO2 Slags by Means of a Front-Heating and Front-Detection Laser-Flash Method2012

    • Author(s)
      Hiroki Hasegawa
    • Journal Title

      Metallurgical and Materials Transactions B

      Volume: 43 Pages: 1405-1412

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermal Conductivity of Molten Silicate of Al2O3-CaO-Na2O-SiO2 Measured by Means of a Front Heating-Front Detection Laser Flash Method2012

    • Author(s)
      Hiroki Hasegawa
    • Journal Title

      Metallurgical and Materials Transactions B

      Volume: 43 Pages: 1413-1419

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] ケイ酸塩融体の熱伝導率の等方複相モデルによる解析2014

    • Author(s)
      太田弘道, 猪瀬司, 小嶋純平, 柴田浩幸,助永壮平
    • Organizer
      日本鉄鋼協会 第167回春季講演大会
    • Place of Presentation
      東京
    • Related Report
      2013 Final Research Report
  • [Presentation] ケイ酸塩融体の熱伝導率の等方複層モデルによる解析2014

    • Author(s)
      太田弘道、猪瀬司、小嶋純平、柴田浩幸、助永壮平
    • Organizer
      日本鉄鋼協会第167回春季講演大会
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
  • [Presentation] CaO-K2O-SiO2 融体の熱伝導率2013

    • Author(s)
      小嶋 純平, 長谷川 裕樹, 白木 康裕, 猪瀬 司, 柴田 浩幸, 助永 壮平, 太田 弘道
    • Organizer
      第34回日本熱物性シンポジウム
    • Place of Presentation
      富山市
    • Related Report
      2013 Final Research Report
  • [Presentation] Thermal Conductivity of Molten CaO-Na_2O-SiO_2 Silicates2013

    • Author(s)
      Hiroyuki SHIBATA, Hiromichi OHTA, Takaya KOWATARI, Hiroki HASEGAWA, Souhei SUKENAGA
    • Organizer
      The 10th Asian Thermophysical Properties Conference
    • Place of Presentation
      KOREA, Jeju
    • Related Report
      2013 Final Research Report
  • [Presentation] Thermal Conductivity of Silicate Melts Containing CaF_2 at High Temperature2013

    • Author(s)
      Hiroyuki SHIBATA, Hiromichi OHTA
    • Organizer
      The 3rd International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining
    • Place of Presentation
      Finland and Sweden
    • Related Report
      2013 Final Research Report
  • [Presentation] Analysis for Thermal Conductivity of Silicate Melts by 3D Metwork Structure Model2013

    • Author(s)
      Hiromichi OHTA, Hiroyuki SHIBATA
    • Organizer
      The 3rd International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining
    • Place of Presentation
      Finland and Sweden
    • Related Report
      2013 Final Research Report
  • [Presentation] Analysis for Thermal Conductivity of Silicate Melts by 3D Network Structure Model2013

    • Author(s)
      Hiromichi OHTA, Hiroyuki SHIBATA
    • Organizer
      The 3rd International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining
    • Place of Presentation
      Finland, Espoo & Sweden, Bro
    • Related Report
      2013 Annual Research Report
  • [Presentation] Thermal Conductivity of Silicate Melts Containing CaF2 at High Temperature2013

    • Author(s)
      Hiroyuki SHIBATA, Hiromichi OHTA
    • Organizer
      The 3rd International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining
    • Place of Presentation
      Finland, Espoo & Sweden, Bro
    • Related Report
      2013 Annual Research Report
  • [Presentation] Thermal conductivity of molten silicates2013

    • Author(s)
      Hiroyuki SHIBATA
    • Organizer
      The 9th Korea-Japan Workshop on Science and Technology in Ironmaking and Steelmaking
    • Place of Presentation
      Japan, Kussharo
    • Related Report
      2013 Annual Research Report
  • [Presentation] Thermal Conductivity of Molten CaO-Na2O-SiO2 Silicates2013

    • Author(s)
      Hiroyuki SHIBATA, Hiromichi OHTA, Takaya KOWATARI, Hiroki HASEGAWA, Souhei SUKENAGA
    • Organizer
      The 10th Asian Thermophysical Properties Conference
    • Place of Presentation
      KOREA, Jeju
    • Related Report
      2013 Annual Research Report
  • [Presentation] Effect of K2O Addition on the Viscosity of CaO-SiO2-Al2O3 Melts2013

    • Author(s)
      Sohei SUKENAGA, Tomoyuki HIGO, Hiroyuki SHIBATA, Noritaka SAITO, Kunihiko NAKASHIMA
    • Organizer
      Goldschmidt2013
    • Place of Presentation
      Italy, Florence
    • Related Report
      2013 Annual Research Report
  • [Presentation] CaO-K2O-SiO2融体の熱伝導率2013

    • Author(s)
      小嶋 純平, 長谷川 裕樹, 白木 康裕, 猪瀬 司, 柴田 浩幸, 助永 壮平, 太田 弘道
    • Organizer
      第34回 日本熱物性シンポジウム
    • Place of Presentation
      富山市
    • Related Report
      2013 Annual Research Report
  • [Presentation] ケイ酸塩融体の熱伝導率の擬クリストバライトモデルによる解析2013

    • Author(s)
      太田弘道
    • Organizer
      日本鉄鋼協会 第165回春季公園大会
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
  • [Presentation] R-Na_2O-SiO_2(R=Al_2O_3,CaO)融体の熱伝導率とNBO/Tの関係2012

    • Author(s)
      古渡貴也, 長谷川裕樹, 白木康弘, 太田弘道, 柴田浩幸
    • Organizer
      日本鉄鋼協会第163回春季講演大会
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2012-03-30
    • Related Report
      2011 Annual Research Report
  • [Presentation] 硼珪酸塩融体の熱浸透率測定2012

    • Author(s)
      白木康裕
    • Organizer
      第33回日本熱物性シンポジウム
    • Place of Presentation
      大阪
    • Related Report
      2012 Annual Research Report
  • [Presentation] Thermal conductivity of molten silicate measured by means of a front heating-front detection laser flash method2012

    • Author(s)
      Hiroyuki SHIBATA
    • Organizer
      5th feench-japanese joint workshop on FRONTIER MATERIALS
    • Place of Presentation
      France,Rennes
    • Related Report
      2012 Annual Research Report
  • [Presentation] Thermal conductivity of molten silicate measured by means of a novel lalser flash method

    • Author(s)
      Hiroyuki SHIBATA
    • Organizer
      The 3rd Symposium of the Research Center for Sustainable Science & Engineering
    • Place of Presentation
      仙台
    • Related Report
      2012 Annual Research Report

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Published: 2011-04-06   Modified: 2019-07-29  

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