한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제33권8호
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  • Pages.895-900
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  • 1996
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

수산염법으로 합성한 $Ba(Ti_{1-x}Sn_x)_4O_9$ 분말의 소결체 특성(II)

Properties of Sintered Body of the $Ba(Ti_{1-x}Sn_x)_4O_9$ Ceramics Synthesized by Oxalate Method (II)

  • 발행 : 1996.08.01
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초록

수산염볍으로 Ba(Ti1-xSnx)4O9 분말을 합성하였다. Ti자리에 Sn이 치환되면 생성된 BaTi4O9은 고용체를 형성하기 때문에 안정화되었다. BaTi4O9 결정상의 생성을 위한 최적 고용량은 0.16mole이었으며, 그 이상 첨가시는 BaTi4O9 결정 성장을 억제하였다. 0.16mole Sn을 첨가하여 135$0^{\circ}C$에서 30분 소결하였을 때 긴 막대형의 결정이 가장 잘 발달하였고, 이때 Q값이 가장 높았다. 그러나 Sn 첨가량이나 소결 유지시간을 변화시켜도 유전율은 거의 일정하였다.

Ba(Ti1-xSnx)4O9 powder was synthesized by oxalate method. With the substitution of Sn into Ti site the sintered BaTiO4 crystal phase was stabilized due to the formation of solid solution. The optimal amounts of Sn solutbility for formation of BaTi4O9 crystalline phase was 0.16mole and of Sn was substituted and sintering was done at 135$0^{\circ}C$ for 30 minutes long rod type crystal was well developed and the highest Q value was obtained. But dielectric constant wasnearly constant without regarding to the Sn addition and the sintering time.

키워드

참고문헌

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