KR960000370A - 알루미나(AL₂O₃)및 탄화 티타늄(TiC)복합 분말의 합성 방법 - Google Patents

알루미나(AL₂O₃)및 탄화 티타늄(TiC)복합 분말의 합성 방법 Download PDF

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KR960000370A
KR960000370A KR1019940014611A KR19940014611A KR960000370A KR 960000370 A KR960000370 A KR 960000370A KR 1019940014611 A KR1019940014611 A KR 1019940014611A KR 19940014611 A KR19940014611 A KR 19940014611A KR 960000370 A KR960000370 A KR 960000370A
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tic
alumina
composite powder
titanium carbide
synthesis
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KR1019940014611A
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KR970001051B1 (ko
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정수종
김홍원
최덕순
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나승렬
대한중석 주식회사
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/42—Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/921—Titanium carbide
    • 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
    • C04B35/6261—Milling
    • 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
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • 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
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C04B2235/402—Aluminium
    • 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
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon
    • C04B2235/424—Carbon black
    • 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
    • C04B2235/658—Atmosphere during thermal treatment

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

본 발명은 절삭공구 내마모 부품 고온용 부품등의 용도에 사용되는 Al2O3와 TiC의 복합분말을 외부의 연속적인 열에너지 공급없이 간단한 공정을 동시에 합성하여 저렴한 제조원가와 고순도 복합 합성분말을 갖게하는 제조방법에 관한 것으로, 알루미늄(Al),탄소(C)원,산화티타늄(TiO,)로 된 분말을 혼합하여 이를 점화시켜 SHS법(Sef Propaguting High Temperatuve Synthesis)에 따른 자체의 반응열로 반응하여 Al203와 TiC이 되게 합성시키고, 밀링(milling)하여서된 알루미나(Al203)및 탄화티타늄(TiC)복합분말의 합성방법에 관한 기술임.

Description

알루미나(Al209)및 탄화티타늄 (TiC)복합분말의 합성방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 사용된 반응설비의 개략도,
제2도는 Al함량 변화에 따른 SHS 합성분말의 XRD패턴.

Claims (7)

  1. 알루미늄(Al), 탄소(C)원, 산화티타늄(TiO2)으로된 분말을 혼합하여 이를 점화시켜 SHS법(Sef Propaguting High Temperatuve Synthesis)에 따른 자체의 반응열로 반응하여 Al203와 TiC이 되게 합성시키고, 밀링(milling)하여서된 알루미나(Al203)및 탄화티타늄(TiC)복합분말의 합성방법.
  2. 제1항에 있어서. Al, 탄소원, TiO,가 몰비(mole%)로 각각 4.0-6.0, 2.0-4.0,3.0-4.0으로 혼합됨을 특징으로 하는 알루미나(Al203) 및 탄화티타늄(TiC)복합분말의 합성방법.
  3. 제 1 항 또는 제 2 항에 있어서, Al-C-TiO2,에 Al2O3를 0.4-0.7몰 첨가함을 특징으로 알루미나(Al2O3)탄화티타늄 (TiC)복합분말의 합성방법.
  4. 제 1 항에 있어서, 자체 화학 반응열(SHS법)처리에 따른 미반응 Al을 염산으로 리칭(leaching)함율 특징으로 하는 알루미나(Al203) 및 탄화티타늄(TiC)복합분말의 합성방법.
  5. 제 1 항에 있어서, 20-50시간 밀링하여 1㎛이하의 미세한 분말이 되게 함을 특징으로 하는 알루미나(Al2O3) 및 탄화티타늄(TiC) 복합분말의 합성방법.
  6. 제 1 항에 있어서, SHS법 처리시 반응을 진공이나 불황성 분위기로 하고, 점화는 텅스텐 와이어(W-Wire)나 카본 리본의 저항열을 이용함을 특징으로 하는 알루미나(Al203) 및 탄화티타늄(TiC) 복합분말의 합성방법.
  7. 제 1 항에 있어서, 탄소원이 카본블랙임율 특징으로 하는 알루미나(Al203) 및 탄화티타늄(TiC) 복합분말 합성방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940014611A 1994-06-24 1994-06-24 고경도 및 고내열성을 갖는 알루미나(Al₂O₃) 및 탄화티타늄(TiC) 복합 소결체 제조를 위한 복합분말의 제조방법 KR970001051B1 (ko)

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KR1019940014611A KR970001051B1 (ko) 1994-06-24 1994-06-24 고경도 및 고내열성을 갖는 알루미나(Al₂O₃) 및 탄화티타늄(TiC) 복합 소결체 제조를 위한 복합분말의 제조방법

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KR1019940014611A KR970001051B1 (ko) 1994-06-24 1994-06-24 고경도 및 고내열성을 갖는 알루미나(Al₂O₃) 및 탄화티타늄(TiC) 복합 소결체 제조를 위한 복합분말의 제조방법

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100334310B1 (ko) * 1999-06-21 2002-05-03 이은숙 착즙기용 스크류롤러

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100334310B1 (ko) * 1999-06-21 2002-05-03 이은숙 착즙기용 스크류롤러

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