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Studies on Growth and Characterization of High Quality Metal Oxide Single Crystals

Research Project

Project/Area Number 05403023
Research Category

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

Allocation TypeSingle-year Grants
Research Field 無機工業化学
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

KODAIRA Kohei  Hokkaido Univ., Fac. of Eng., Pro., 工学部, 教授 (60002002)

Co-Investigator(Kenkyū-buntansha) HIGUCHI Mikio  Hokkaido Univ., Fac. of Eng., Assi., 工学部, 助手 (40198990)
TSUCHIDA Takeshi  Hokkaido Univ., Fac. of Eng., Asso. Pro., 工学部, 助教授 (40041959)
TAKAHASHI Junichi  Hokkaido Univ., Fac. of Eng., Asso. Pro., 工学部, 助教授 (40110259)
古崎 毅  北海道大学, 工学部, 助手 (90190149)
Project Period (FY) 1993 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥28,900,000 (Direct Cost: ¥28,900,000)
Fiscal Year 1995: ¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 1994: ¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 1993: ¥20,500,000 (Direct Cost: ¥20,500,000)
KeywordsQuartz / Hydrothermal Synthesis / Rutile / Polarizing Materials / Tri Rutile Structure / Floating Zone Method / MgTa_2O_6 / NiTa_2O_6 / 水熱育成 / 偏光子用材料 / 三重ルチル構造 / MgTa_2O_6 / NiTa_2O_6 / 編向子用材料
Research Abstract

High quality metal oxide single crystals have been applied to many electronic devices. This study is to clarify the growth and characterization of rutile and trirutile single crystals by floating zone method, and also quartz single crystals by hydrothermal method. Following results were obtained through this investigation.
(1) Rutile single crystals free from low-angle grain boundaries were grown with the addition of Al, Zr and Sc. Optical quality of the crystals was superior to that of commercially available crystals grown by the Verneuil method.
(2) MgTa_2O_6 single crystals which has trirutile structure were successfully grown by FZ method. The refractive indices for ordinary and extraordinary rays were 2.07 and 2.18 under white light, respectively, and birefringence was 0.11. Pale green NiTa_2O_6 single crystals were also grown by the same method. The crystals had strong absorption spectra in the wave length ranges of 300-500,650-900 and 1100-1600 nm.
(3) Quartz single crystals were grown from ammonium fluoride solutions at 230-280 ゚C and 4-100 MPa under hydrothermal condition. The maximum growth rate of the Z face attained 0.88 mm/day which was comparable to that in alkaline solutions. The linear defect density in Z growth zone was about 10^3-10^5 pcs/cm^2, higher than that alkaline solutions. Strong absorption at about 3500cm^<-1> by -OH streching vibration was observed in FTIR spectra.

Report

(4 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • 1993 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] Mikio,HIGUCHI: "Growth of Cr^<4+>-rich, Chromium-dopes Forsterite Single Crystals by the Floating Zone Method" J.Crystal Growth. 148. 140-147 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Junichi,TAKAHASHI: "Preparation of Titania Colloids by Thermal Hydrolysis of Urea and Densification Behavior of the Colloid-derived monolithic Titania Gels" J.Sol-Gel Sci.Tech.4. 15-21 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kazuto,HATTA: "Floating Zone Growth and Characterization of Alumimium-doped Rutile Single Crystals" J.Crystal Growth. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Mikio, HIGUCHI: "Growth of Cr^<4+>-rich, Chromium-doped Forsterite Single Crystals by the Floating Zone Method" J.Crystal Growth. 148. 140-147 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Junichi, TAKAHASHI: "Preparation of Titania Colloids by Thermal Hydrolysis of Urea and Densification Behavior of the Colloid-derived monolithic Titania Gels" J.Sol-Gel Sci. Tech.4. 15-21 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kazuto, HATTA: "Floating Zone Growth and Characterization of Alumimium-doped Rutile Single Crystals" J.Crystal Growth. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.Higuchi: "Growth of Cr^<4+>-rich,Chromium-doped Forsterite Single Crystals by the Floating Method" J.Crystal Growth. 148. 140-147 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Tsuchida: "The Effect of Grinding on the Thermal Decomposition of Alumina Monohydrates,α-and B-Al_2O_3・H_2O" Thermochimica Acta. 254. 359-370 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] J.Takahashi: "PrEparation of Titania Colloids by Thermal Hydrolysis of Urea and Densification Behavior of the Colloid-Derived Monolithic Titania Gels" J.Sol-Gel Sci.Tech.4. 15-21 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] K.Hatta: "Floating Zone Growth and Characterization of Aluminium-doped Rutile Single Crystals" J.Crystal Growth. in press.

    • Related Report
      1995 Annual Research Report
  • [Publications] Kazuo ANDO: "FIoating Zone Growth and Optical Properties of Nickel Tantalum Oxide Single Crystals" Materials Research Bulletin. 29. 385-391 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Mikio HIGUCHI: "Solid-liquid Interface Shapes in the Floating Zone Growth of Rutile Single Crystals" Materials Research Bulletin. 29. 545-550 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Shigeki OTANI: "High Temperature Microhardness of Zr-,Sc-,and AI-doped Rutile Single Crystals" Journal of AIIoy and Compounds. 216. L17-L19 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M Michio HIGUCHI: "Growth of MgTa_2O_6 Single Crystals by Floating Zone Method and Their Optical Properties" J.Ceram.Soc.Jap.101. 118-120 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 橋本 慎: "フッ化アンモニウム水溶液による水晶の水熱育成" 日本セラミックス協会学術論文誌. 101. 1120-1124 (1993)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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