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KR850003377A - 고강도 산화지르코늄형 소결체 및 그의 제조방법 - Google Patents

고강도 산화지르코늄형 소결체 및 그의 제조방법 Download PDF

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KR850003377A
KR850003377A KR1019840006430A KR840006430A KR850003377A KR 850003377 A KR850003377 A KR 850003377A KR 1019840006430 A KR1019840006430 A KR 1019840006430A KR 840006430 A KR840006430 A KR 840006430A KR 850003377 A KR850003377 A KR 850003377A
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zirconium oxide
sintered compact
powder
alumina
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고오지 쓰꾸마 (외 2)
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나까다니 하루오
도오요오 소오다 고오교오 가부시끼 가이샤
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Priority claimed from JP58192470A external-priority patent/JPS6086073A/ja
Priority claimed from JP59071829A external-priority patent/JPS60215571A/ja
Priority claimed from JP59082019A external-priority patent/JPS60226457A/ja
Priority claimed from JP59089272A external-priority patent/JPS60235762A/ja
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    • 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
    • C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
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    • 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
    • C04B35/6455—Hot isostatic pressing
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • 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
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    • 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
    • C04B35/44—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 aluminates
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • 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
    • C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/486—Fine ceramics
    • C04B35/488—Composites
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    • 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
    • C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/486—Fine ceramics
    • C04B35/488—Composites
    • C04B35/4885—Composites with aluminium oxide

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Abstract

내용 없음

Description

고강도 산화지르코늄형 소결체 및 그의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 산화지르코늄형 소결체 표면의 주사현미경 사진(2000배 확대)이다.

Claims (22)

  1. 산화이트륨(Y2O3) 1.5 내지 5몰%를 포함하는 산화지르코늄(ZrO2) 50 내지 90중량%와 알루미나(Al2O3), 스피넬(MgAl2O4) 또는 멀라이트(3A2O3·2SiO2) 50 내지 2중량%로 필수적으로 구성되며, 적어도 1700MPa의 삼점굽힘강도를 갖는 것을 특징으로 하는 산화지르코늄형 소결체.
  2. 제1항에 있어서, 산화이트륨 함유 산화지르코늄과 알루미나로 필수적으로 구성되는 것을 특징으로 하는 상기 산화지르코늄형 소결체.
  3. 제1항에 있어서, 소결체를 구성하는 산화지르코늄의 결정상이 정방결정, 또는 정방결정과 등방결정으로 주로 구성되는 것을 특징으로 하는 산화지르코늄형 소결체.
  4. 제1항에 있어서, 소결체결정의 입도가 2μm보다 더 크지 않은 것을 특징으로 하는 산화지르코늄형 소결체.
  5. 제1항에 있어서, 소결체의 부피밀도가 이론밀도의 적어도 99.5%인 것을 특징으로 하는 산화지르코늄형 소결체.
  6. 제1항에 있어서, 소결체가 그안에 30μm이상 크기의 기공을 포함하지 않는 것을 특징으로 하는 산화지르코늄형 소결체.
  7. (a1) 산화이트륨 1.5 내지 5몰%를 포함하는 산화지르코늄분말 또는 (a2) 산화이트륨분말 1.5 내지 5몰%와 산화지르코늄 분말 95 내지 98.5%로 이루어지는 혼합물 50 내지 98중량%와 (b) 알루미늄, 알루미늄-마그네시아형 산화물, 알루미나-실리카형 산화물, 알루미나와 마그네시아의 혼합물 및 알루미나와 실리카의 혼합물로부터 선택된 알루미나형 산화물 분말 2 내지 50중량%로 필수적으로 구성되는 분말조성물을 1300℃ 내지 1700℃의 온도에서 적어도 50MPa의 압력하에 균형적으로 (isostatically)고열압착하는 것으로 이루어지는 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  8. 제7항에 있어서, 산화지르코늄분말 또는 산화이트륨함유 산화지르코늄분말의 평균주요입도는 0.1μm보다 크지 않으며 산화이트륨분말의 평균주요입도는 0.5μm보다 크지않고 알루미나형 산화물분말의 평균 주요입도는 0.5μm보다 크지 않은 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  9. 제7항에 있어서, 알루미나형 산화물분말은 20㎡g보다 더 작은 비표면적과, 0.2 내지 0.4μm의 평균 주요입도를 갖는 α-알루미나 분말인 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  10. 제7항에 있어서, 분말혼합물은 캡슐내에 충전된 다음 고온균형 압착처리를 받는 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  11. 제7항에 있어서, 분말혼합물을 성형시키고 성형된 분말혼합물을 예비적으로 소결시켜 1.5μm보다 크지 않은 평균입도를 갖는 입자(grains)로 구성되는 예비소결제품을 얻고 다음에 예비소결제품을 고열균형 압착처리를 받게 하는 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  12. 제7항에 있어서, 50MPa 내지 500MPa의 압력하에 고열균형 압착처리를 수행하는 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  13. (a1) 산화이트륨 1.5 내지 5몰%를 포함하는 산화지르코늄분말 또는 (a2) 산화이트륨분말 1.5 내지 5몰%와 산화지르코늄 분말 95 내지 98.5몰%로 이루어지는 혼합물 50 내지 98중량%와 (b) 알루미나, 알루미나-마그네시아형 산화물, 알루미나-실리카형 산화물, 알루미나와 마그네시아의 혼합물 및 알루미나와 실리카의 혼합물로부터 선택된 알루미나형 산화물 분말 2 내지 50중량%로 필수적으로 구성되는 분말조성물을 1400℃ 내지 1700℃의 온도에서 적어도 20MPa의 압력하에 단일축상으로 압축소결시키는 것으로 이루어지는 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  14. 제13항에 있어서, 산화지르코늄분말 또는 산화이트륨함유 산화지르코늄 분말의 평균 주요입도는 0.1μm보다 크지 않으며 산화이트륨분말의 평균주요입도는 0.5μm보다 크지 않고 알루미늄형 산화물분말의 평균 주요입도는 0.5μm보다 크지 않은 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  15. 제13항에 있어서, 알루미나형 산화물분말은 20㎡/g보다 더 작은 비표면적과, 0.2 내지 0.4μm의 평균 주요입도를 갖는 α-알루미나 분말인 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  16. (a) 지르코늄, (b) 안정제로서 이트륨 및 (c) 알루미늄, 알루미늄과 마그네슘, 또는 알루미늄과 실리콘을 이들 원소의 염, 유기금속화합물 또는 산화물의 형태로 포함하는 수용액에 탄산암모늄을 가하는 단계와 형성된 침전을 산화지르코늄형 분말을 얻기 위하여 열분해시키는 단계, 그리고 얻어진 분말을 1300℃ 내지 1700℃의 온도에서 적어도 50MPa의 압력하에 고열균형 압착처리를 받게하는 단계로 이루어지는 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  17. 제16항에 있어서, 탄산암모늄을 격렬한 교반을 하면서 출발수용액에 한번 가하여 용액의 pH갖이 약 9가 되도록 하는 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  18. 제16항에 있어서, 침전을 900℃ 내지 1150℃에서 공기대기중에서 열분해시키는 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  19. 제16항에 있어서, 산화지르코늄분말의 평균주요입도는 0.1μm보다 더 크지 않은 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  20. 제16항에 있어서, 산화지르코늄형분말을 성형시키고 성형된 분말을 1500℃보다 더 높지 않은 온도에서 예비소결시킨 다음, 예비소결제품을 고열균형 압착처리를 받게 하는 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  21. 제16항에 있어서, 50MPa 내지 500MPa의 압력하에 고열균형 압착처리를 수행하는 것을 특징으로 하는 산화지르코늄형 소결체의 제조방법.
  22. 제16항에 있어서, 산화지르코늄형 분말을 캡슐에 충전시킨 다음 고열균형 압착처리를 받게하는 것을 특징으로 하는 산화카르코늄형 소결체의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019840006430A 1983-10-17 1984-10-17 고강도 산화지르코늄형 소결체 및 그의 제조방법 Expired KR920007020B1 (ko)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP58192470A JPS6086073A (ja) 1983-10-17 1983-10-17 高強度ジルコニア系焼結体およびその製造方法
JP58-192470 1983-10-17
JP59-71829 1984-04-12
JP59071829A JPS60215571A (ja) 1984-04-12 1984-04-12 高強度ジルコニア系焼結体の製法
JP59-82019 1984-04-25
JP59082019A JPS60226457A (ja) 1984-04-25 1984-04-25 高強度ジルコニア系焼結体の製造法
JP59-89272 1984-05-07
JP59089272A JPS60235762A (ja) 1984-05-07 1984-05-07 高強度ジルコニア系焼結体

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KR850003377A true KR850003377A (ko) 1985-06-17
KR920007020B1 KR920007020B1 (ko) 1992-08-24

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US (2) US4587225A (ko)
EP (1) EP0140638B1 (ko)
KR (1) KR920007020B1 (ko)
AU (1) AU573631B2 (ko)
DE (1) DE3472398D1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100400263B1 (ko) * 2001-07-04 2003-10-01 주식회사 코스마 와이어 본딩용 알루미나-지르코니아 복합체 캐필러리소결체 및 그의 제조 방법

Families Citing this family (118)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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