KR860008105A - 고인성 세라믹 합금 - Google Patents

고인성 세라믹 합금 Download PDF

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KR860008105A
KR860008105A KR1019860002730A KR860002730A KR860008105A KR 860008105 A KR860008105 A KR 860008105A KR 1019860002730 A KR1019860002730 A KR 1019860002730A KR 860002730 A KR860002730 A KR 860002730A KR 860008105 A KR860008105 A KR 860008105A
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데일 케챰 토마스
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코오닝 글라스 워크스
알프레드 엘. 마이클센
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Abstract

내용 없음

Description

고인성 세라믹 합금
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 결과적으로 생산된 소결체에 미소균열이 발생되는 경우와 결점이 없는 상태의 소결체의 경우 각각의 조성범위를 구분하기 위해 연구조사된 조성예들을 나타낸다. 인성치는 MPa으로 표시되고 각 시료에 대해 측정되어 나타내져 있다.
제2도는 고인성을 갖는 소결체를 얻을 수 있는 본 발명의 조성 범위를 둘러싼 다각형 O-P-Q-R-S-T-U-V-W-X-Y-Z-O이다.

Claims (10)

  1. ZrO2, 부분안정화 ZrO2, HfO2고용체, 부분안정화 ZrO2-HfO2고용체, 부분안정화 HfO2및 HfO2들로 이루어진 군의 구성요소중 반드시 적어도 하나이상으로 이루어지고, YNbO4및/또는 YTaO4및/또는 MNbO4및/또는 MTaO4로 이루어진 군으로부터 선택된 인성강화제를 산화물기준으로 약 0.5∼8몰% 포함함으로써 고인성을 나타내는 세라믹 합금에 있어서, M이 Mg+2, Ca+2,Sc+3및/또는 La+3, Ce+4, Pr+3, Nd+3, Sm+3, Eu+3, Gd+3, Tb+3, Dy+3, Ho+3, Er+3, Tm+3, Yb+3및 Lu+3들로 이루어진 군으로부터 선택된 회토류 금속이온을 나타내며, 이들이 Y에 대체되고, 2개의 +2가 양이온이 3개의 +3가 Y양이온에 대체되는 것을 특징으로 하는 세라믹 합금.
  2. 제1항에 있어서, YO3/2가 제2도의 다각형 O-P-Q-R-S-T-U-V-W-X-Y-Z-C내의 조성으로 부분안정화를 이루는 첨가제로 작용하는 것을 특징으로 하는 세라믹 합금.
  3. 제2항에 있어서, 산화물 기준상 중량%로 표시될 때 반드시 약 2.4∼12.9% Y203및 0.5∼7.6% Nb2O5및/또는 0.85∼12.0% Ta2O5로 이루어진 0.5∼12.0% Nb2O5+Ta2O5들로 이루어진 YNbO4및/또는 YTaO4의 군으로부터 상기 인성강화제가 선택되어지는 것을 특징으로 하는 세라믹 합금.
  4. 제1항의 세라믹 합금을 반드시 적어도 5체적% 포함하고 나머지가 경한 내화세라믹으로 되어 있으며 인성이 향상되어 있는 세라믹체.
  5. 제4항에 있어서, 상기 경한 내화 세라믹이 α-알루미나, β-알루미나, β"-알루미나, Al2O3-Cr2O3고용체, 뮬라이트, 시아론, 나이콘, 실리콘카바이드, 실리콘나이트라이드, 스피넬, 티타늄카바이드, 티타늄이붕소화물, 지르콘 및 지르콘니움 카바이드들로 이루어진 것을 특징으로 하는 세라믹체.
  6. 최대 80체적% 내화 세라믹섬유 및/또는 호이스카 및 제1항의 세라믹 합금의 최소 5배체적%로 이루어진 인성이 향상된 세라믹 복합체.
  7. 제6항에 있어서, 상기 섬유 및/또는 호이스카가 알루미나, 뮬라이드, 시알론, 실리콘카바이드, 실리콘나이트라이드, A1N, BN, B4C, ZrO2, 지르콘, 실리콘옥시카바이드 및 스피넬로 이루어진 군의 구성요소 중 적어도 하나이상으로 이루어진 것을 특징으로 하는 세라믹 복합체.
  8. 제6항에 있어서, 경한 내화세라믹을 포함하는 것을 특징으로 하는 세라믹 복합체.
  9. 제8항에 있어서, 상기 경한 내화 세라믹이 α-알루미나, β-알루미나, β"-알루미나, Al2O3-Cr2O3고용체, 뮬라이드, 시알론, 나시콘, 실리콘카바이드, 실리콘나이트라이드, 스피넬, 티타늄카바이드, 티타늄이붕소화물, 지르콘 및 지르콘니움 카바이드들로 이루어진 군의 구성요소중 적어도 하나이상으로 이루어진 것을 특징으로 하는 세라믹 복합체.
  10. 제9항에 있어서, 상기 섬유 및/또는 호이스카가 알루미나, 뮬라이트, 시알론, 실리콘카바이드, 실리콘나이트라이드, A1N, BN, B4C, ZrO2, 지르콘, 실리콘옥시카바이드 및 스피넬로 이루어진 군의 구성요소 중 적어도 하나이상으로 이루어진 것을 특징으로 하는 세라믹 복합체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860002730A 1985-04-11 1986-04-10 고인성 세라믹 합금 KR930009328B1 (ko)

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US72222985A 1985-04-11 1985-04-11
US722229 1985-04-11
US722,229 1985-04-11
US81246985A 1985-12-23 1985-12-23
US812,469 1985-12-23

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KR930009328B1 KR930009328B1 (ko) 1993-09-27

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JP (1) JPH03237060A (ko)
KR (1) KR930009328B1 (ko)
CN (1) CN86102486A (ko)
AT (1) ATE71608T1 (ko)
AU (1) AU592976B2 (ko)
BR (1) BR8601593A (ko)
CA (1) CA1247660A (ko)
DE (1) DE3683392D1 (ko)
IL (1) IL78245A0 (ko)

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US4886768A (en) * 1987-11-13 1989-12-12 Board Of Regents Acting For And On Behalf Of University Of Michigan Toughened ceramics
US5073689A (en) * 1988-02-06 1991-12-17 Shinagawa Shirorenga Kabushiki Kaisha Zirconia refractory heating element
US4939107A (en) * 1988-09-19 1990-07-03 Corning Incorporated Transformation toughened ceramic alloys
US5047373A (en) * 1989-03-24 1991-09-10 Corning Incorporated Ceramic materials exhibiting pseudo-plasticity at room temperature
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CA1247660A (en) 1988-12-28
JPH03237060A (ja) 1991-10-22
KR930009328B1 (ko) 1993-09-27
DE3683392D1 (de) 1992-02-27
EP0199459A3 (en) 1988-04-27
BR8601593A (pt) 1986-12-09
ATE71608T1 (de) 1992-02-15
AU5564586A (en) 1986-10-16

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