KR960041119A - 고강도, 고인성의 알루미나기 복합 재료의 제조 방법 - Google Patents

고강도, 고인성의 알루미나기 복합 재료의 제조 방법 Download PDF

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KR960041119A
KR960041119A KR1019950012687A KR19950012687A KR960041119A KR 960041119 A KR960041119 A KR 960041119A KR 1019950012687 A KR1019950012687 A KR 1019950012687A KR 19950012687 A KR19950012687 A KR 19950012687A KR 960041119 A KR960041119 A KR 960041119A
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South Korea
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composite material
phase
alumina
manufacturing
laal
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KR1019950012687A
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English (en)
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KR0143450B1 (ko
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장병국
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우덕창
쌍용양회공업 주식회사
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Priority to KR1019950012687A priority Critical patent/KR0143450B1/ko
Publication of KR960041119A publication Critical patent/KR960041119A/ko
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Publication of KR0143450B1 publication Critical patent/KR0143450B1/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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
    • C04B35/62231—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres based on oxide ceramics
    • C04B35/62236—Fibres based on aluminium 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
    • 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
    • C04B35/10—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 aluminium 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
    • 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
    • C04B35/645—Pressure sintering
    • 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
    • C04B2235/3227—Lanthanum oxide 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
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

본 발명은 알루미나의 파괴 인성과 강도를 향상시키기 위해서 휘스카를 첨가시켜 침상 구조의 복합 재료를 만들었던 종래 방법과는 달리 희토류 산화물의 일종인 란탄 산화물(La2O3)을 사용하여 소결중에 매트릭스인 알루미나와 첨가제인 란탄 산화물(La2O3)간의 고상 석출반응을 이용하여 침상구조를 갖는 LaAl11O18상을 생성시키고 이 LaAl11O18상을 분산상으로 알루미나 매트릭스에 2차상으로 존재시켜 고강도, 고인성의 복합 재료를 제조하는 방법을 제공한다.

Description

고강도, 고인성의 알루미나기 복합 재료의 제조 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (1)

  1. AI2O3: La2O3의 몰비가 0.1 : 1 내지 14 : 1의 조성이 되도록 하는 혼합 원료 분말을 진공 분위기 중에서 1000℃ 내지 1800℃의 온도 범위와 10분 내지 5시간의 조건하에서 가압 소결시켜서 소결 중에 알루미나와 La2O3와의 고상 석출 반응에 의해서 침상의 입자 형태를 갖는 LaAl11O18상을 석출시키고, 상기 LaAl11O18상이 알루미나 매트릭스 내에 5부피% 내지 30부피% 존재하게 되는 고강도, 고인성 알루미나기 복합 재료의 제조 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950012687A 1995-05-20 1995-05-20 고강도, 고인성의 알루미나-란탄산화물 복합재료의 제조방법 KR0143450B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950012687A KR0143450B1 (ko) 1995-05-20 1995-05-20 고강도, 고인성의 알루미나-란탄산화물 복합재료의 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950012687A KR0143450B1 (ko) 1995-05-20 1995-05-20 고강도, 고인성의 알루미나-란탄산화물 복합재료의 제조방법

Publications (2)

Publication Number Publication Date
KR960041119A true KR960041119A (ko) 1996-12-19
KR0143450B1 KR0143450B1 (ko) 1998-07-15

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KR0143450B1 (ko) 1998-07-15

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