KR860001772A - 고인성 질화규소 소결체(高靭性窒化珪素燒結體) 및 그 제조방법 - Google Patents

고인성 질화규소 소결체(高靭性窒化珪素燒結體) 및 그 제조방법 Download PDF

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KR860001772A
KR860001772A KR1019850005327A KR850005327A KR860001772A KR 860001772 A KR860001772 A KR 860001772A KR 1019850005327 A KR1019850005327 A KR 1019850005327A KR 850005327 A KR850005327 A KR 850005327A KR 860001772 A KR860001772 A KR 860001772A
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silicon nitride
sintered body
plate
high toughness
nitride sintered
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KR920003029B1 (ko
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히로시 사까모또
다다히꼬 미요시
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미다 가쓰시게
가부시기 가이샤 히다찌 세이사꾸쇼
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Abstract

내용 없음

Description

고인성 질화규소 소결체(高靭性窒化珪素燒結體) 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명에 있어서의 판상의 입자구조를 나타낸 현미경 사진.
제2도는 본원 발명의 실시예에 있어서의 판상입자의 첨가량에 의한 파괴인성치의 변화를 나타낸 도면.
제3도는 실시예에 있어서의 판상입자의 입경에 의한 파괴인성치의 변화를 나타낸 도면.

Claims (4)

  1. 질화규소를 주성분으로 하고, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W에서 선정되는 금속의 규화물 및/또는 탄화물의 판상입자의 1종 이상으로 이루어지며, 판상입자의 두께가 상기 판상입자의 단경의 5분의 1이하임을 특징으로 하는 고인성 질화규소 소결체.
  2. 상기 단경 d2이 소결체중의 다른 입자의 입경보다 크고 100μm보다 작으며, 또한 소결체 체적의 2∼13체적 %가 상기 판상입자로 이루어진 것을 특징으로 하는 특허청구의 범위 1기재의 고인성 질화규소 소결체.
  3. 상기 판상입자는 그 주면의 장경 d1과 단경 d2과의 비(d1/d2)가 10이하인 것을 특징으로 하는 특허청구의 범위 1기재의 고인성 질화규소 소결체.
  4. Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W의 규화물 및/또는 탄화물을 용융하고, 냉각하며 기계분쇄하여 판상의 분말을 얻는 일과, 얻어진 분말의 두께가 상기 분말의 단경의 5분의 1이하인 판상입자를 선별하는 일과, 상기 선별된 판상입자와 소결조제 및 질화규소분말과의 혼합물을, 가압성형하여 얻은 성형체를 성형체중의 판상입자가 실질적으로 용해, 반응, 변질하지 않는 온도에서 소결하는 것을 특징으로 하는 질화규소 소결체의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850005327A 1984-08-22 1985-07-25 고인성 질화규소 소결체(高靭性窒化珪素燒結體) 및 그 제조방법 KR920003029B1 (ko)

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Application Number Priority Date Filing Date Title
JP59173289A JPS6153167A (ja) 1984-08-22 1984-08-22 高靭性窒化珪素焼結体およびその製造方法
JP84-173289 1984-08-22

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KR860001772A true KR860001772A (ko) 1986-03-22
KR920003029B1 KR920003029B1 (ko) 1992-04-13

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US (1) US4612296A (ko)
EP (1) EP0171819B1 (ko)
JP (1) JPS6153167A (ko)
KR (1) KR920003029B1 (ko)
DE (1) DE3572469D1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100303905B1 (ko) * 1998-04-28 2001-09-24 도라히코 하야시 빵 반죽 등의 스트래칭 장치

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6330369A (ja) * 1986-07-21 1988-02-09 日立造船株式会社 耐熱衝撃、耐食性セラミツクス
US4756895A (en) * 1986-08-22 1988-07-12 Stemcor Corporation Hexagonal silicon carbide platelets and preforms and methods for making and using same
US4981665A (en) * 1986-08-22 1991-01-01 Stemcor Corporation Hexagonal silicon carbide platelets and preforms and methods for making and using same
US5002905A (en) * 1986-08-22 1991-03-26 Stemcor Corporation Hexagonal silicon carbide platelets and preforms and methods for making and using same
DE3734274C2 (de) * 1986-10-09 1996-07-11 Nippon Denso Co Keramische Glühkerze und Verfahren zu deren Herstellung
US5356869A (en) * 1987-09-28 1994-10-18 Arch Development Corporation Metal oxide superconducting powder comprised of flake-like single crystal particles
JPH01115872A (ja) * 1987-10-29 1989-05-09 Kurasawa Opt Ind Co Ltd 窒化ケイ素セラミックス
US4870036A (en) * 1988-03-08 1989-09-26 Allied-Signal Inc. High strength silicon nitride
US4994219A (en) * 1988-03-08 1991-02-19 Allied-Signal Inc. Method for forming a high strength silicon nitride
US5214007A (en) * 1988-03-31 1993-05-25 Aisin Seiki Kabushiki Kaisha Production process for silicon nitride sintered body
EP0419150B1 (en) * 1989-09-18 1994-12-07 Ngk Insulators, Ltd. Sintered ceramic composite body and method of manufacturing same
EP0419151B1 (en) * 1989-09-18 1994-08-10 Ngk Insulators, Ltd. Sintered ceramic composite body and method of manufacturing same
US5177037A (en) * 1991-05-21 1993-01-05 Industrial Ceramic Technology, Inc. High fracture toughness electro-discharge machineable ceramic whisker reinforced ceramic composites and tooling made therefrom
US5445887A (en) * 1991-12-27 1995-08-29 Casti; Thomas E. Diamond coated microcomposite sintered body
US5234643A (en) * 1992-01-27 1993-08-10 Matsumoto Roger L K Silicon nitride ceramics containing crystallized grain boundary phases
JPH06151084A (ja) * 1992-11-11 1994-05-31 Asahi Glass Co Ltd 帯電除去用セラミックスおよびその製造用組成物
JP3411498B2 (ja) * 1997-04-23 2003-06-03 日本特殊陶業株式会社 セラミックヒータ、その製造方法、及びセラミックグロープラグ
CN112279653B (zh) * 2020-10-29 2023-03-17 齐鲁工业大学 一种具有裂纹愈合能力的陶瓷材料及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751174A (en) * 1980-09-11 1982-03-25 Sumitomo Electric Industries Sintered body for si3n4 cutting tool
JPS5841770A (ja) * 1981-09-01 1983-03-11 株式会社東芝 セラミツクス焼結体及びその製造方法
JPS5860677A (ja) * 1981-09-30 1983-04-11 日本特殊陶業株式会社 高靭性窒化珪素焼結体の製造法
US4753764A (en) * 1982-09-24 1988-06-28 Sumitomo Electric Industries, Ltd. Manufacturing method for fiber reinforced silicon ceramics sintered body
JPS6051668A (ja) * 1983-07-29 1985-03-23 株式会社東芝 耐摩耗性部材
US4521525A (en) * 1984-05-29 1985-06-04 Gte Products Corporation Silicon nitride bodies

Cited By (1)

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KR100303905B1 (ko) * 1998-04-28 2001-09-24 도라히코 하야시 빵 반죽 등의 스트래칭 장치

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JPS6153167A (ja) 1986-03-17
JPS6362474B2 (ko) 1988-12-02
EP0171819B1 (en) 1989-08-23
US4612296A (en) 1986-09-16
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