Low Temperature Sintered $CaZr(BO_3)_2$ Microwave Dielectric Ceramics for LTCC Application

$CaZr(BO_3)_2$ 세라믹스의 저온 소결 및 마이크로웨이브 유전 특성

  • 남명화 (고려대학교 신소재공학과) ;
  • 김효태 (요업기술원 융복합기술본부) ;
  • 김종희 (요업기술원 융복합기술본부) ;
  • 남산 (고려대학교 신소재공학과)
  • Published : 2007.06.21


The low temperature sintering of dolomite type borates, $CaZr(BO_3)_2$[CZB] ceramics and their microwave dielectric properties were investigated The sintering temperature of CZB ceramics could be reduced from $1150^{\circ}C$ to $925^{\circ}C$ by the addition of sintering additive. $CaZrO_3$, $ZrO_2$ and $CaB_2O_4$ second phases were found in the CZB ceramics. The syntheses, sintering properties, microstructures, and dielectricnproperties of dolomite-type borates were examined by XRD, thermal analysis, electron microscopy, network analyzer, and the results are discussed intensively. The compatibility with silver electrode was also explored.