• DocumentCode
    1840715
  • Title

    Microwave dielectric properties of Ca2-xSrxZnSi2O7 Ceramics (x = 0–2)

  • Author

    Joseph, Tony ; Sebastian, M.T.

  • Author_Institution
    Mater. & Miner. Div., Nat. Inst. for Interdiscipl. Sci. & Technol., Trivandrum, India
  • fYear
    2009
  • fDate
    14-16 Dec. 2009
  • Firstpage
    1
  • Lastpage
    3
  • Abstract
    The melilite-type Ca2-xSrxZnSi2O7 ceramics were synthesized by solid state ceramic route. The lattice parameters and cell volume increased with increasing the composition x. The substitution of Sr for Ca has improved the microwave dielectric properties. Excellent dielectric properties (??r = 8.4, Qu??f = 105000 GHz (at 12.628 GHz) and ??f = -51.5 ppm/??C) were obtained for the composition x = 2 when sintered at 1475??C/2 h. Addition of 2 wt% of SrTiO3 to Sr2ZnSi2O7 decreased the ??f value to -13 ppm/??C with ??r= 8.8, Qu??f = 60000 GHz (at 12.585 GHz).
  • Keywords
    calcium compounds; ceramics; lattice constants; microwave materials; permittivity; powders; sintering; strontium compounds; zinc compounds; Ca2-xSrxZnSi2O7; ball milling; cell volume; crystal structure; lattice parameters; melilite-type ceramics; microwave dielectric properties; sintering; solid state ceramic route; temperature 1475 degC; time 2 h;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Applied Electromagnetics Conference (AEMC), 2009
  • Conference_Location
    Kolkata
  • Print_ISBN
    978-1-4244-4818-0
  • Electronic_ISBN
    978-1-4244-4819-7
  • Type

    conf

  • DOI
    10.1109/AEMC.2009.5430641
  • Filename
    5430641
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1840715