KR960017581A - 마이크로웨이브용 유전체 세라믹 조성물 - Google Patents

마이크로웨이브용 유전체 세라믹 조성물 Download PDF

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KR960017581A
KR960017581A KR1019940030096A KR19940030096A KR960017581A KR 960017581 A KR960017581 A KR 960017581A KR 1019940030096 A KR1019940030096 A KR 1019940030096A KR 19940030096 A KR19940030096 A KR 19940030096A KR 960017581 A KR960017581 A KR 960017581A
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oxide
dielectric ceramic
ceramic composition
present
mol
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KR1019940030096A
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KR970008711B1 (ko
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이석진
김태홍
박정래
이상석
최태구
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양승택
재단법인 한국전자통신연구소
조백제
한국전기통신공사
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Priority to KR1019940030096A priority Critical patent/KR970008711B1/ko
Priority to US08/559,278 priority patent/US5688732A/en
Priority to JP29842695A priority patent/JP3253835B2/ja
Publication of KR960017581A publication Critical patent/KR960017581A/ko
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Publication of KR970008711B1 publication Critical patent/KR970008711B1/ko

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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
    • C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
    • C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/12—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3251—Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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  • Chemical & Material Sciences (AREA)
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  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

본 발명은 민생용 및 산업용 전자기기에 사용되는 마이크로웨이브 대역 부품용 소재 및 적층 세라믹 커패시터와 전자파 장해(Electro-Magnetic Interference : EMI) 필터의 온도보상용 소재로서 유용한 세라믹 조성물에 관한 것이다.
본 발명은 산화바륨, 산화납, 산화니오디움, 산화세륨, 산화란탄 및 이산화티탄을 주성분으로 하는 유전체 세라믹 조성물로서 여러가지 시험을 수행한 결과, 다음과 같은 새로운 조성을 얻었다.
예를 들어, 본 발명은 제1성분으로 6∼20mol%의 (Ba1-α·Pbα)O, 제2성분으로 10∼20mol%의 (Nd2O3(1-β-γ)·CeO2(β)·La2O3(γ)), 제3성분으로 60∼75mol%의 TiO2로 구성된다.
상기 조성물을 1250∼1400℃ 범위의 소결온도와 2∼4시간 동안 소결하여 제조된 본 발명의 유전체 세라믹은 90 이상이 유전율과, ±10ppm/℃ 이내의 공진주파수 온도계수를 얻을 수 있고, 1GHz 공진 주파수에서 5000 이상의 품질계수를 갖는다.

Description

마이크로웨이브용 유전체 세라믹 조성물
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (4)

  1. 산화바륨, 산화납, 산화니오디움, 산화세륨, 산화란탄 및 이산화티탄을 주성분으로 하는 유전체 조성물로서, 하기와 같은 조성식을 가지는 유전체 세라믹 조성물.
    x(Ba1-α·Pbα)O-y(Nd2O3(1-β-γ)·CeO2(β)·La2O3(γ))-zTiO2
    여기서,
  2. 제1항에 있어서, 상기 산화바륨(Bao) 대신에 탄산바륨(BaCO3)을 사용한 유전체 세라믹 조성물.
  3. 제1항에 있어서, 상기 산화납(PbO) 대신에 삼산화납(Pb3O4)을 사용한 유전체 세라믹 조성물.
  4. 제1항에 있어서, 상기 조성물 1250∼1400℃의 소결온도와 2∼4시간 동안의 소결시간으로 소결한 유전체 세라믹 조성물.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940030096A 1994-11-16 1994-11-16 마이크로웨이브용 유전체 세라믹 조성물 KR970008711B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019940030096A KR970008711B1 (ko) 1994-11-16 1994-11-16 마이크로웨이브용 유전체 세라믹 조성물
US08/559,278 US5688732A (en) 1994-11-16 1995-11-15 Dielectric ceramic compositions for microwave
JP29842695A JP3253835B2 (ja) 1994-11-16 1995-11-16 マイクロウェーブ用誘電体セラミック組成物

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Application Number Priority Date Filing Date Title
KR1019940030096A KR970008711B1 (ko) 1994-11-16 1994-11-16 마이크로웨이브용 유전체 세라믹 조성물

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KR960017581A true KR960017581A (ko) 1996-06-17
KR970008711B1 KR970008711B1 (ko) 1997-05-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040051732A (ko) * 2002-12-11 2004-06-19 주식회사 광성전자 유전체 세라믹 조성물

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040051732A (ko) * 2002-12-11 2004-06-19 주식회사 광성전자 유전체 세라믹 조성물

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