KR970027010A - Ceramic Composition for High Temperature PTC Thermistors - Google Patents

Ceramic Composition for High Temperature PTC Thermistors Download PDF

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Publication number
KR970027010A
KR970027010A KR1019950046501A KR19950046501A KR970027010A KR 970027010 A KR970027010 A KR 970027010A KR 1019950046501 A KR1019950046501 A KR 1019950046501A KR 19950046501 A KR19950046501 A KR 19950046501A KR 970027010 A KR970027010 A KR 970027010A
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South Korea
Prior art keywords
ceramic composition
high temperature
component
composition
ptc thermistor
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Application number
KR1019950046501A
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Korean (ko)
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KR0147966B1 (en
Inventor
김재욱
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정몽원
만도기계 주식회사
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Priority to KR1019950046501A priority Critical patent/KR0147966B1/en
Publication of KR970027010A publication Critical patent/KR970027010A/en
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Publication of KR0147966B1 publication Critical patent/KR0147966B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/022—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances
    • H01C7/023—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances containing oxides or oxidic compounds, e.g. ferrites
    • 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
    • C04B35/45—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 copper oxide or solid solutions thereof with other oxides
    • C04B35/4504—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 copper oxide or solid solutions thereof with other oxides containing rare earth oxides
    • 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
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215—Barium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/76—Crystal structural characteristics, e.g. symmetry

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Thermistors And Varistors (AREA)

Abstract

본 발명은 특정 온도에서 전기 저항값이 급격히 증가하는 고온 PTC 써미스터용 세라믹 조성물을 개시한다. 본 발명은 Y2O3와 Nd2O3와 BaCO3와 CuO를 기존 조성물로 하는 Y0.4Nd0.4Ba2Cu3O7-y성분으로 이루어져 있으며, Y+Nd : Ba : Cu의 몰비가 1 : 2 : 3으로 이루어져 있는 것을 특징으로 하는 PTC 써미스터용 세라믹 조성물에 의해서 달성되며 이에 의해서 상온에서 통전되는 전류 양이 증대되어서 모터의 작동에 의한 전기 제품의 작동이 양호하고 또한 PTC 특성이 나타나는 전이 온도가 약 640℃ 정도이므로 고온에서 사용가능하고 3성분계로 이루어져 있으므로 제조비용이 절감되고 또한 제조 시간이 단축된다.The present invention discloses a ceramic composition for high temperature PTC thermistors in which the electrical resistance value increases rapidly at a certain temperature. The present invention consists of Y 0.4 Nd 0.4 Ba 2 Cu 3 O 7-y component having Y 2 O 3 and Nd 2 O 3 , BaCO 3 and CuO as an existing composition, the molar ratio of Y + Nd: Ba: Cu is 1 : 2: 3 is achieved by the ceramic composition for PTC thermistor characterized in that the amount of current that is energized at room temperature is increased thereby the transition temperature at which the operation of the electric product by the operation of the motor is good and the PTC characteristics are exhibited Since it is about 640 ℃ can be used at high temperatures and consists of a three-component system, manufacturing cost is reduced and manufacturing time is shortened.

Description

고온 피티씨(PTC) 써미스터용 세라믹 조성물Ceramic Composition for High Temperature PTC Thermistors

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (4)

특정한 온도에서 전기 저항값이 급격히 증가하는 PTC 써미스터용 세라믹 조성물에 있어서, Y2O3와 Nd2O3와 BaCO3와 CuO를 기존 조성물로 하는 Y0.4Nd0.6Ba2Cu3O7-y성분으로 이루어져 있으며, 상기 기본 조성물을 구성하는 Y+Nd : Ba : Cu의 몰비는 1 : 2 : 3으로 이루어져 있는 것을 특징으로 하는 고온 PTC 써미스터용 세라믹 조성물.Y 0.4 Nd 0.6 Ba 2 Cu 3 O 7-y component comprising Y 2 O 3 , Nd 2 O 3 , BaCO 3, and CuO as an existing composition in a ceramic composition for PTC thermistor whose electrical resistance increases rapidly at a specific temperature. And a molar ratio of Y + Nd: Ba: Cu that constitutes the basic composition is comprised of 1: 2: 3. 제1항에 있어서, 상기 Y0.4Nd0.6Ba2Cu3O7-y성분의 결정 구조가 직방정계 구조를 갖는 것을 특징으로 하는 고온 PTC 써미스터용 세라믹 조성물.The ceramic composition for a high temperature PTC thermistor according to claim 1, wherein the crystal structure of said Y 0.4 Nd 0.6 Ba 2 Cu 3 O 7-y component has a rectangular structure. 제1항에 있어서, 상기 Y0.4Nd0.6Ba2Cu3O7-y성분의 세라믹 조성물의 PTC 특성이 벌크(bulk) 특성을 갖는 것을 특징으로 하는 고온 PTC 써미스터용 세라믹 조성물.The ceramic composition for a high temperature PTC thermistor according to claim 1, wherein the PTC characteristic of the ceramic composition of the Y 0.4 Nd 0.6 Ba 2 Cu 3 O 7-y component has a bulk characteristic. 제1항에 있어서, 상기 Y0.4Nd0.6Ba2Cu3O7-y성분의 Cu 이온은 Mo2O3, SnO2, Fe2O2로 치환이 가능하며, 그 치환 농도는 0.01~0.3%인 것을 특징으로 하는 고온 PTC 써미스터용 세라믹 조성물.The method according to claim 1, wherein the Cu ions of the Y 0.4 Nd 0.6 Ba 2 Cu 3 O 7-y component can be substituted with Mo 2 O 3 , SnO 2 , Fe 2 O 2 , the substitution concentration is 0.01 ~ 0.3% Ceramic composition for high temperature PTC thermistor, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950046501A 1995-11-30 1995-11-30 Ceramic composition for high temperature ptc thermally sensitive resister KR0147966B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950046501A KR0147966B1 (en) 1995-11-30 1995-11-30 Ceramic composition for high temperature ptc thermally sensitive resister

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950046501A KR0147966B1 (en) 1995-11-30 1995-11-30 Ceramic composition for high temperature ptc thermally sensitive resister

Publications (2)

Publication Number Publication Date
KR970027010A true KR970027010A (en) 1997-06-24
KR0147966B1 KR0147966B1 (en) 1998-08-17

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KR1019950046501A KR0147966B1 (en) 1995-11-30 1995-11-30 Ceramic composition for high temperature ptc thermally sensitive resister

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KR0147966B1 (en) 1998-08-17

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