Characteristics of nanosized Bi-based glass powders prepared by flame spray pyrolysis as transparent dielectric layer material

  • Jung Hyun Kim
  • , Hye Young Koo
  • , You Na Ko
  • , Dae Soo Jung
  • , Yun Chan Kang
  • , Jong Heun Lee

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Bi-based glass powders with particle size of 34 nm were prepared by high-temperature flame spray pyrolysis. The glass transition temperature (T g) of the powders was 442 °C. Dielectric layers fired at temperatures of 480 and 500 °C contained voids, while those fired at temperatures above 540 °C had clean surfaces and no voids. The dielectric layers sintered at temperatures of 560 and 580 °C had transmittances of 70% in the visible range. Further, it was observed that the dielectric layers formed from the nanosized glass powders obtained from spray solutions containing excess boron had higher transmittances (80% in the visible range at a sintering temperature of 580 °C) than the layers formed from spray solutions containing stoichiometric amounts of boron.

    Original languageEnglish
    Pages (from-to)687-690
    Number of pages4
    JournalCeramics International
    Volume37
    Issue number2
    DOIs
    Publication statusPublished - 2011 Mar

    Bibliographical note

    Funding Information:
    This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea Government (MEST) (No. 2009-0074023 ). This work was supported by a grant ( M2009010025 ) from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy (MKE) , Republic of Korea.

    Keywords

    • Chemical synthesis
    • Gas-solid reaction

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Process Chemistry and Technology
    • Surfaces, Coatings and Films
    • Materials Chemistry

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