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KR930007856A - Al2O3-ZrO2 composite sintered body and its manufacturing method - Google Patents

Al2O3-ZrO2 composite sintered body and its manufacturing method Download PDF

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Publication number
KR930007856A
KR930007856A KR1019910017228A KR910017228A KR930007856A KR 930007856 A KR930007856 A KR 930007856A KR 1019910017228 A KR1019910017228 A KR 1019910017228A KR 910017228 A KR910017228 A KR 910017228A KR 930007856 A KR930007856 A KR 930007856A
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South Korea
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zro
sintered body
composite sintered
less
present
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KR1019910017228A
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KR940006423B1 (en
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홍기곤
한동빈
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정명식
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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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
    • C04B35/01—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
    • C04B35/01—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures

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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)
  • Compositions Of Oxide Ceramics (AREA)
  • Composite Materials (AREA)

Abstract

본 발명은 고강도,고인성의 내마모부재 및 엔지니어링 세라믹스로 사용되고 있는 Al2O3-ZrO2계 복합소결체 및 그 제조방법에 관한 것으로서, 그 미세조직을 조절하므로서 소결성, 기계적 특성 및 신뢰성이 우수한 Al2O3-ZrO2계 복합소결체를 제공하고자 하는데 그 목적이 있다.The invention Al 2 O 3 -ZrO 2 composite sintered body, and as it relates to a process for the preparation, hameuroseo control the microstructure sintering property, mechanical properties, and excellent reliability is Al 2 being used as a high-strength, wear-resistant member, and engineering ceramics deceased Castle An object of the present invention is to provide an O 3 -ZrO 2 based composite sintered body.

본 발명은 1.0~3.0mol%의 Y2O3를 함유하는 ZrO2가, Vol%로, 5~40% 함유된 통상의 Al2O3-ZrO2계 나노 복합분체를 준비하는 단계, 2.0㎛ 이하의 ??-Al2O3와 1.0㎛ 이하의 Y-TZP(Y2O3가 1.0~3.0mol% 첨가되어 있는 정방정 ZrO2다결정) 분체를 상기 나노 복합분체에 중량%로 10~50% 첨가시켜 혼합하는 단계, 상기 혼합단계에서 혼합된 혼합체를 통상의 방법으로 성형하는 단계, 및 상기 성형단계에서 성형된 성형체를 1550~1700℃에서 소성하는 단계를 포함하여 Al2O3-ZrO2계 복합소결체를 제조하는 방법 및 그 제조방법에 의해서 제조된 Al2O3-ZrO2계 복합소결체에 관한 것이다.The present invention is a step of preparing a conventional Al 2 O 3 -ZrO 2 -based nanocomposite powder containing 5 to 40% of ZrO 2 , which contains 1.0 to 3.0 mol% of Y 2 O 3 , in Vol%, 2.0 μm. The following ??-Al 2 O 3 and 1.0-μm or less of Y-TZP (1.0-3.0 mol% of tetragonal ZrO 2 polycrystal with Y 2 O 3 added) powder are contained in the nanocomposite powder in a weight% of 10-50. Mixing by adding%, molding the mixture mixed in the mixing step in a conventional manner, and calcining the molded body formed in the molding step at 1550-1700 ° C., including Al 2 O 3 -ZrO 2 The present invention relates to a method for producing a system complex sintered body and an Al 2 O 3 -ZrO 2 system complex sintered body produced by the method.

본 발명은 강도 및 파괴인성등이 우수한 Al2O3-ZrO2계 복합소결체를 제공하는 효과를 갖는다.The present invention has the effect of providing an Al 2 O 3 -ZrO 2 -based composite sintered body having excellent strength and fracture toughness.

Description

Al2O3-ZrO2계 복합소결체 및 그 제조방법Al2O3-ZrO2 composite sintered body and its manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따라 Al2O3-ZrO2계 복합소결체를 제조하는 공정을 나타내는 제조공정 개략도.1 is a manufacturing process schematic showing a process for producing an Al 2 O 3 -ZrO 2 -based composite sintered body according to the present invention.

제2도는 본 발명에 부합되는 Al2O3-ZrO2계 복합소결체의 주사 전자현미경사진.2 is a scanning electron micrograph of the Al 2 O 3 -ZrO 2 -based composite sintered body in accordance with the present invention.

Claims (3)

1.0~3.0mole%의 Y2O3를 함유한 ZrO2가, Vol%로, 5~40% 함유되고 크기가 2.0㎛ 이하인 Al2O3-Zro2계 나노 복합분체를 준비하는 단계, 2.0㎛ 이하의 α-Al2O3와 1.0㎛ 이하의 Y-TZP(Y2O3가 1.0~3.0mol% 첨가되어 있는 정방정 ZrO2다결정) 분체를 상기 나노 복합분체의 조성과 동일하도록 조정하는 단계, 그 조정이 상기와 같이 조절된 분체를 상기 나도 복합분체에 중량%로 10~50% 첨가시켜 혼합하는 단계, 상기 혼합단계에서 혼합된 혼합체를 통상의 방법으로 성형하는 단계, 및 상기 성형단계에서 성형된 성형체를 1550~1700℃에서 소성하는 단계를 포함하는 것을 특징으로 하는 Al2O3-ZrO2계 복합소결체의 제조방법.Preparation of Al 2 O 3 -Zro 2 based nanocomposite powder containing 5 to 40% of ZrO 2 containing 1.0 to 3.0 mole% of Y 2 O 3 at 5% by volume and 2.0 μm or less, 2.0 μm Adjusting the following α-Al 2 O 3 and 1.0 μm or less of Y-TZP (a tetragonal ZrO 2 polycrystal with Y 2 O 3 added 1.0 to 3.0 mol%) to the same composition as the nanocomposite powder In the step of adjusting the powder adjusted as described above by adding 10 to 50% by weight to the Nado composite powder, mixing, shaping the mixture mixed in the mixing step in a conventional manner, and in the forming step Method for producing an Al 2 O 3 -ZrO 2 -based composite sintered body comprising the step of firing the molded body at 1550 ~ 1700 ℃. 1.0~3.0mol%의 Y2O3를 함유한 ZrO2가 Vol%로, 5~40% 함유된 Al2O3-ZrO2계 복합소결체에 있어서, 상기 복합소결체의 미세구조가 그 평균입도가 3.5㎛ 이하인 Al2O3결정립 및 그 입도가 1.0㎛ 이하인 ZrO2결정립을 포함하여 구성되는 것을 특징으로 하는 Al2O3-ZrO2계 복합소결체.In the Al 2 O 3 -ZrO 2 -based composite sinter containing 5% to 40% by volume of ZrO 2 containing 1.0 to 3.0 mol% of Y 2 O 3 , the microstructure of the composite sintered body has an average particle size. An Al 2 O 3 -ZrO 2 based composite sintered body comprising Al 2 O 3 grains having a particle size of 3.5 μm or less and ZrO 2 grains having a particle size of 1.0 μm or less. 제2항에 있어서, ZrO2중 결정립 크기가 0.5㎛ 이하인 것은 상기 Al2O3결정립내에 분산되어 있고, 그 결정립크기가 1.6㎛ 이하인 것은 상기 Al2O3결정립계에 분산되어 있는 것을 특징으로 하는 Al2O3-ZrO2계 복합소결체. 3. The Al according to claim 2, wherein the grain size of ZrO 2 is 0.5 μm or less is dispersed in the Al 2 O 3 grains, and the grain size is 1.6 μm or less is dispersed in the Al 2 O 3 grain boundary. 2 O 3 -ZrO 2 -based composite sintered body. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910017228A 1991-10-01 1991-10-01 Al_2O_3-ZrO_2 series composite sintered body and its manufacturing method Expired - Fee Related KR940006423B1 (en)

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KR940006423B1 KR940006423B1 (en) 1994-07-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100400263B1 (en) * 2001-07-04 2003-10-01 주식회사 코스마 Sintered material for capillary of alumina-zirconia composite used in wire bonding and method for manufacturing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101966499B1 (en) * 2016-10-07 2019-04-08 한국세라믹기술원 Method for improving thermal conductivity of alumina complex ceramics composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100400263B1 (en) * 2001-07-04 2003-10-01 주식회사 코스마 Sintered material for capillary of alumina-zirconia composite used in wire bonding and method for manufacturing the same

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