KR960022392A - 마이크로 웨이브용 유전체 세라믹 조성물 - Google Patents

마이크로 웨이브용 유전체 세라믹 조성물 Download PDF

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KR960022392A
KR960022392A KR1019940033907A KR19940033907A KR960022392A KR 960022392 A KR960022392 A KR 960022392A KR 1019940033907 A KR1019940033907 A KR 1019940033907A KR 19940033907 A KR19940033907 A KR 19940033907A KR 960022392 A KR960022392 A KR 960022392A
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oxide
composition
ceramic composition
present
dielectric
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KR1019940033907A
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KR970008752B1 (ko
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박정래
김태홍
이석진
이상석
최태구
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양승택
재단법인 한국전자통신연구소
조백제
한국전기통신공사
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Priority to KR1019940033907A priority Critical patent/KR970008752B1/ko
Priority to JP24446595A priority patent/JP3329632B2/ja
Publication of KR960022392A publication Critical patent/KR960022392A/ko
Priority to US08/804,280 priority patent/US5750452A/en
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Publication of KR970008752B1 publication Critical patent/KR970008752B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B2235/3296—Lead oxides, plumbates or oxide forming salts thereof, e.g. silver plumbate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Insulating Materials (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

본 발명은 마이크로웨이브용 유전체 세라믹 조성물에 관한 것으로서, 구체적으로는 민생용 및 산업용 전자기 기에 사용되는 마이크로 웨이브 대역 부품용 소재 및 적층 세라믹 커패시터와 전자파장해(Electro-Magnetic Interference : EMI) 필터의 온도보상용 소재로써 사용되는, 유전율이 높고 공진주파수의 온도계수가 낮으며, 품질계수(Quality factor : Q)가 양호한 세라믹 (Ceramic) 유전체 조성에 관한 것이다.
본 발명은 산화바륨, 산화납, 산화스트론튬, 산화지르코늄, 산화사마륨, 산화망간, 산화마그네슘, 산화아연, 산화비스무스 및 이산화티탄을 성분으로 하는 유전세 세라믹 조성물로써, 실험한 결과 다음과 같은 새로운 조성을 얻는다.
예를 들면, 본 발명은 산화바륨대신 산화스트론튬과 산화지르코늄을 사용하여 유전율은 같고 품질계소가 증가한 조성을 얻을 수 있고 산화바륨 대신 가격이 싼 산화망간, 산화마그네슘, 산화아연을 첨가함으로써 유전율과 품질계수는 같으면서 소결제로서의 역할을 하여 소결온도를 낮추어 줄 수 있다. 이외에 3몰% 내외의 산화납과 산화비스무스를 사용함으로써 성분원소의 휘발로 인한 품질계수의 저하를 방지할 수 있고 조성의 조절이 용이하다.
상기 조성물을 1200℃∼1400℃범위의 소결온도에서 소결하면 85 이상의 유전율과 ±5ppm/℃이내의 공진주파수 온도계수를 얻을 수 있고, 1GHz 공진주파수에 6000 이상의 품질계소를 얻을 수 있다.

Description

마이크로 웨이브용 유전체 세라믹 조성물
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (5)

  1. 본 발명은 산화바륨, 산화납, 산화사마륨, 산화스트론듐, 산화지르코늄, 산화망간, 산화마그네슘, 산화아연, 산화비스무스, 이산화티탄을 주성분으로 하는 유전체 조성물로써 다음과 같은 조성식을 가지는 유전체 세라믹 조성물.
    x(Ba1-∝-βㆍPb∝Mβ)O-ySm2O3-zTiO2
    여기서, M은 산화스트론듐, 산화지르코늄, 산화망간, 산화마그네슘, 산화아연, 산화비스무스, .
  2. 제1항에 있어서, M성분의 탄화물을 사용한 유전체 세라믹 조성물.
  3. 제1항에 있어서, 산화바륨(BaO) 또는 탄산바륨(BaCO3)을 사용한 유전체 세라믹 조성물.
  4. 제1항에 있어서, 산화납(PbO) 또는 삼산화납(Pb3O4)을 사용한 유전체 세라믹 조성물.
  5. 상기 제1항의 조성물중 1종 또는 2종 이상의 M성분을 사용한 유전체 세라믹 조성물.
    ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.
KR1019940033907A 1994-09-22 1994-12-13 마이크로웨이브용 유전체 세라믹 조성물 KR970008752B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019940033907A KR970008752B1 (ko) 1994-12-13 1994-12-13 마이크로웨이브용 유전체 세라믹 조성물
JP24446595A JP3329632B2 (ja) 1994-09-22 1995-09-22 マイクロウェーブ用の誘電体セラミック組成物
US08/804,280 US5750452A (en) 1994-09-22 1997-03-03 Dielectric ceramic composition for microwave

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KR1019940033907A KR970008752B1 (ko) 1994-12-13 1994-12-13 마이크로웨이브용 유전체 세라믹 조성물

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KR960022392A true KR960022392A (ko) 1996-07-18
KR970008752B1 KR970008752B1 (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
KR100444221B1 (ko) * 2001-05-01 2004-08-16 삼성전기주식회사 유전체 자기 조성물, 이를 이용한 자기 커패시터 및 그 제조방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100444221B1 (ko) * 2001-05-01 2004-08-16 삼성전기주식회사 유전체 자기 조성물, 이를 이용한 자기 커패시터 및 그 제조방법

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