Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The Effect of Mg Deficiency on the Microwave Dielectric Characteristics of (Mg1/2Nb2/3)O3 Ceramics

Mg 결핍에 따른 Ba(Mg1/2Nb2/3)O3 세라믹스의 마이크로파 유전특성

  • 백종후 (요업기술원 전자부품.소재본부) ;
  • 이미재 (요업기술원 전자부품.소재본부) ;
  • 최병현 (요업기술원 전자부품.소재본부) ;
  • 김효태 (요업기술원 전자부품.소재본부) ;
  • 지미정 (요업기술원 전자부품.소재본부) ;
  • 임은경 (요업기술원 전자부품.소재본부) ;
  • 남산 (고려대학교 재료공학부) ;
  • 이학주 (한국표준과학연구원 물질량 표준부)
  • Published : 2004.04.01
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Abstract

Crystal structure and microwave dielectric properties of Ba(Mg1/3Nb2/3) $O_3$ (BMN) ceramics were investigated. Ba(Mg1/3Nb2/3) $O_3$ has the 1:2 ordered hexagonal structure. The 1:2 ordering and relative density of specimens increased with small Mg deficiency(x). The variation of Q${\times}$ $f_{0}$ with Mg deficiency is very similar to that of 1:2 ordering and relative density. The highest Q${\times}$ $f_{0}$ achieved in this investigation is about 96,000 for Ba(Mg1/3Nb2/3) $O_3$. The improvement of Q${\times}$ $f_{0}$ with Mg-deficiency is related to the increase of degree of ordering and relative density of the specimen.

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