KR950008002A - Ba₁-xPBxTIO₃계 PTC 분말의 제조방법 - Google Patents

Ba₁-xPBxTIO₃계 PTC 분말의 제조방법 Download PDF

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KR950008002A
KR950008002A KR1019930018753A KR930018753A KR950008002A KR 950008002 A KR950008002 A KR 950008002A KR 1019930018753 A KR1019930018753 A KR 1019930018753A KR 930018753 A KR930018753 A KR 930018753A KR 950008002 A KR950008002 A KR 950008002A
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barium
barium titanate
tio
general formula
solution
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KR1019930018753A
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KR960004400B1 (ko
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한응학
이병민
송병무
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우덕창
쌍용양회공업 주식회사
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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
    • C04B35/01—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
    • C04B35/472—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 lead 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
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/6267—Pyrolysis, carbonisation or auto-combustion reactions
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
    • C04B2103/0094—Agents for altering or buffering the pH; Ingredients characterised by their pH

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
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  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
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  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

본 발명은 질산바륨과 옥시질화티탄, 질산납, 질화 희토류 원소의 혼합물 수용액을 옥살산 수용액에 교반하면서 적하하고, 생성된 침전에 암모니아수를 용액의 pH가 8 내지 10이 되도록 첨가한 후, 여과하고 알코올로 세척하여 얻어진 비정질의 납함유 옥살산티타닐바륨을 열분해하는 것으로 이루어진 X가 0<X≤0.3인 일반식 Ba1-xPbxTio3로 표시되는 티탄산바륨계 PTC 분말의 제조방법에 관한 것이다.
본 발명에 따라 제조된 티탄산바륨은 균질한 재현성을 갖고 분쇄가 용이하여 미세분말을 얻얼 수 있으므로 소결활성이 뛰어난 티탄산바륨 분말을 함유하는 제품을 제조할 수 있다.

Description

Ba1-xPbxTio3계 PTC 분말의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 일반식 Ba1-xPbxTio3로 표시되는 티탄산바륨계 PTC 분말의 제조방법을 단계별로 도해한 것이다.

Claims (3)

  1. 질산바륨과 옥시질화티탄, 질산납, 질화 희토류 원소의 혼합물 수용액을 옥살산 수용액에 교반하면서 적하하고, 생성된 침전에 암모니아수를 용액의 pH가 8 내지 10이 되도록 첨가한 후, 여과하고 알코올로 세척하여 얻어진 비정질의 납함유 옥살산티타닐바륨을 열분해하는 것으로 이루어진 X가 0<X≤0.3인 일반식 Ba1-xPbxTio3로 표시되는 티탄산바륨계 PTC 분말의 제조방법.
  2. 제1항에 있어서, 옥시질화티탄은 사염화티탄 용액을 증류수로 희석하고, 여기에 암모니아수를 첨가하여 수산화티탄을 제조하고, 염소이온이 검출되지 않도록 알코올로 충분히 세척하여 여과한 후, 여과물에 질산을 가하여 제조되는 것임을 특징으로 하는 일반식 Ba1-xPbxTio3로 표시되는 티탄산바륨계 PTC 분말의 제조방법.
  3. 제1항에 있어서, 비정질의 납함유 옥살산티타닐바륨의 열분해는 공기중에서 700 내지 1200℃의 온도범위로 실시하는 것임을 특징으로 하는 일반식 Ba1-xPbxTio3로 표시되는 티탄산바륨계 PTC 분말의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930018753A 1993-09-17 1993-09-17 Ba_1-xPb_xTiO_3계 PTC 분말의 제조방법 KR960004400B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930018753A KR960004400B1 (ko) 1993-09-17 1993-09-17 Ba_1-xPb_xTiO_3계 PTC 분말의 제조방법

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Application Number Priority Date Filing Date Title
KR1019930018753A KR960004400B1 (ko) 1993-09-17 1993-09-17 Ba_1-xPb_xTiO_3계 PTC 분말의 제조방법

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KR950008002A true KR950008002A (ko) 1995-04-15
KR960004400B1 KR960004400B1 (ko) 1996-04-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100483169B1 (ko) * 2002-05-24 2005-04-14 삼성코닝 주식회사 다성분계 금속산화물 분말의 제조방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100483169B1 (ko) * 2002-05-24 2005-04-14 삼성코닝 주식회사 다성분계 금속산화물 분말의 제조방법

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