KR960000826A - 3개의 모드의 세공 조성을 가진 SiC 다공성 베어링재(bearing material) - Google Patents
3개의 모드의 세공 조성을 가진 SiC 다공성 베어링재(bearing material) Download PDFInfo
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- KR960000826A KR960000826A KR1019950013923A KR19950013923A KR960000826A KR 960000826 A KR960000826 A KR 960000826A KR 1019950013923 A KR1019950013923 A KR 1019950013923A KR 19950013923 A KR19950013923 A KR 19950013923A KR 960000826 A KR960000826 A KR 960000826A
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- 239000011148 porous material Substances 0.000 title claims abstract description 12
- 239000000203 mixture Substances 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 title claims abstract 10
- 239000000835 fiber Substances 0.000 claims abstract 6
- 238000004519 manufacturing process Methods 0.000 claims abstract 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims 14
- 229910010271 silicon carbide Inorganic materials 0.000 claims 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 3
- 239000011159 matrix material Substances 0.000 claims 3
- 239000004033 plastic Substances 0.000 claims 3
- 229920003023 plastic Polymers 0.000 claims 3
- 239000000843 powder Substances 0.000 claims 3
- 238000005245 sintering Methods 0.000 claims 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 2
- 229910021431 alpha silicon carbide Inorganic materials 0.000 claims 2
- 229910052796 boron Inorganic materials 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 2
- 230000001681 protective effect Effects 0.000 claims 2
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims 1
- 239000013078 crystal Substances 0.000 claims 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims 1
- 239000004926 polymethyl methacrylate Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Classifications
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0051—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity
- C04B38/0061—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity closed porosity
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0051—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/065—Burnable, meltable, sublimable materials characterised by physical aspects, e.g. shape, size or porosity
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/043—Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00344—Materials with friction-reduced moving parts, e.g. ceramics lubricated by impregnation with carbon
- C04B2111/00353—Sliding parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2202/00—Solid materials defined by their properties
- F16C2202/02—Mechanical properties
- F16C2202/10—Porosity
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
- Sliding-Contact Bearings (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Developing Agents For Electrophotography (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Silicon Compounds (AREA)
Abstract
이 발명은 3개 모드의 세공조성(trimodal pore composition)을 가진 SiC 다공성 베어링재(porous SiC bearing materials)와 그 제조방법에 관한 것이다.
각각의 폐쇄세공 3∼10Vol%를 가진 무압소결 SiC의 다공성 베어링재를 미크로세공(M), 섬유형성세공(F) 및 구형마크로세공(S)으로 구성되는 3개모드의 세공조성을 가지며, 그 세공계 F-M-S(제1도)의 양은 그 코너점(wrner points)a=10%M-80%F-10%S b=10%M-10%F-80%S c=40%M-10%F-50%S, d=40%M-50%F-10%S를 가진 사다리꼴영역에 의해 정해지며, 그 미크로세공은 직경이 5μm 또는 5μm 미만이고, 섬유형상 세공은 직경이 30μm 또는 30μm미만이며 길이가 80μm는 80μm미만이고, 구형세공은 직경이 70μm 또는 70μm 미만이며, 적어도 250/㎡의 휨강도를 가진다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 이 발명의 3개의 모드의 세공조성영역 표시도.
제2도는 이 발명의 베어링재의 조성 개략도.
제3도는 이 발명에 의해 얻어진 소결체(Sintered body)의 미세 구조도.
Claims (9)
- 각각의 폐쇄세공(closel pores)3∼10Vol%를 가진 무압소결(pressureless sintened)시킨 SiC 다공성 베어링재(porous bearing material)에 있어서, 미크로세공(micropores)(OM), 섬유형상 마크로세공(fibershaped macropores)(F) 및 구형마크로세공(spherical macropores)(S)으로 구성되는 3개 세공조성(trimodel pore composition)을 가지며, 세공계 F-M-S(제1도)의 그 조성양은 코너점(corner points) a=10%M-80%F-10%S, b=10%M-10%F-80%S, c=40%M-10%F-50%S, d=40%M-50%F-10%S을 가진 사다리꼴영역에 의해 정해지며, 그 미크로세공은 직경이 5μm 또는 5μm미만이고, 그 섬유형성 마크로세공은 직경이 30μm 또는 30μm미만이고, 길이가 80μm 또는 80μm미만이며, 구형마크로세공은 직경이 70μm 또는 70μm미만이고, 휨강도가 적어도 250MN/㎡인 SiC 다공성 베어링제.
- 제1항에 있어서, 그 세공이외에 존재한 중 SiC 매트릭스(dense SiC matrix)는 평균크기〈50μm이며 탄소원소, 알루미늄 및/또는 보론 2wt%(총) 이내를 가진 각주관상 결정형상의 α-SiC로 구성함을 특징으로 하는 SiC 다공성 베어링제.
- 유기질단섬유와 플라스틱 구형체의 중량비 9:1∼1:9의 크기분포가 좁은 그 유기질 단섬유와 플라스틱 구형체를 소결첨가제와 압축조제로 혼가한 미세한 α-SiC 분말에 그 도핑한 SiC 분말을 기준으로 하여 1∼3.5 중량부로 첨가시켜, 그 균질화시킨 분말혼합물을 압축성형하여 생지(green bodies)를 얻으며, 그 생지를 온도 1000℃이내에서 보호가스분위기의 존재하에 예열시킨 다음 그 예열시킨 생지를 온도 2000℃∼2100℃에서 소결시켜 그 실리콘카바이드(SiC)의 매트릭스밀도의 90%∼97%의 밀도를 가진 소결체를 형성함을 특징으로 하는 제1항 또는 제2항의 SiC 다공성 베어링재의 제조방법.
- 제3항에 있어서, 그 소결 참가제는 알루미늄 니트라이드 및/또는 보론 및 탄소를 2wt% 이내의 양으로 사용함을 특징으로 하는 SiC 다공성 베어링재의 제조방법.
- 제3항 또는 제4항에 있어서, 그 유기질 단섬유는 크기분포 dF=8-30μm, lP=15-90μm(dP=섬유직경, lP=섬유길이)를 가진 셀룰로오즈임을 특징으로 하는 SiC 다공성 베어링재의 제조방법.
- 제3항에 있어서, 그 플라스틱 구형체는 크기분포 dS=40-80μm(dS=구형체직경)을 가진 폴리(메틸메타크릴데이트)구형체(PWMA)임을 특징으로 하는 SiC 다공성 베어링제의 제조방법.
- 제3항에 있어서, 그 예열시킨 소지의 소결은 입력≤30mbar에서 불활성 분위기의 존재하에 실시함을 특징으로 하는 SiC 다공성 베어링재의 제조방법.
- 그라파이트링에 대한 페어링(pairing)을 한 경질/연질링 또는 그 자체에 대한 페어링을 한 경질/경질링에서 축방향의 플로팅-링시일(floating-ring seals)의 시일링 링(sealing rings)으로서 그 SiC 다공성 베어링재의 사용.
- 보호측 슬리브(Slelves)와 슬라이딩 베어링의 구성성분으로 SiC 다공성 베어링재의 사용.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4419243A DE4419243A1 (de) | 1994-06-01 | 1994-06-01 | Gleitwerkstoff aus porösem SiC mit trimodaler Porenzusammensetzung |
DE94-P4419243.6 | 1994-06-01 | ||
DE94-P44.19.243.6 | 1994-06-01 |
Publications (2)
Publication Number | Publication Date |
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KR960000826A true KR960000826A (ko) | 1996-01-25 |
KR0145490B1 KR0145490B1 (ko) | 1998-07-15 |
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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KR1019950013543A KR0159835B1 (ko) | 1994-06-01 | 1995-05-27 | 무기산화물의 실릴화 방법 |
KR1019950013923A KR0145490B1 (ko) | 1994-06-01 | 1995-05-30 | 3개 모드의 세공조성을 가진 sic 다공성 베어링재 |
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KR1019950013543A KR0159835B1 (ko) | 1994-06-01 | 1995-05-27 | 무기산화물의 실릴화 방법 |
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US (1) | US5762895A (ko) |
EP (1) | EP0685437B1 (ko) |
JP (1) | JP2722182B2 (ko) |
KR (2) | KR0159835B1 (ko) |
CN (1) | CN1040341C (ko) |
CA (1) | CA2146399C (ko) |
CZ (1) | CZ283013B6 (ko) |
DE (2) | DE4419243A1 (ko) |
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DE10111225A1 (de) * | 2001-03-08 | 2002-09-19 | Wacker Chemie Gmbh | Verbundwerkstoff auf der Basis von Siliciumcarbid und Kohlenstoff, Verfahren zu seiner Herstellung sowie seine Verwendung |
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DE20212848U1 (de) | 2002-08-21 | 2002-10-31 | Burgmann Dichtungswerke GmbH & Co. KG, 82515 Wolfratshausen | Gleitringdichtungsanordnung |
DE10241265A1 (de) * | 2002-09-06 | 2004-03-18 | Ceram Tec Ag Innovative Ceramic Engineering | Gesinterte Siliciumcarbidkörper mit optimierten tribologischen Eigenschaften ihrer Gleitbeziehungsweise Dichtfläche |
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JPS6237517A (ja) * | 1985-08-12 | 1987-02-18 | Ibiden Co Ltd | 摺動部材 |
JP2665773B2 (ja) * | 1988-07-29 | 1997-10-22 | イビデン株式会社 | 摺動材料の製造方法 |
JPH0255273A (ja) * | 1988-08-18 | 1990-02-23 | Showa Denko Kk | メカニカルシール用炭化珪素焼結体およびそれを用いたメカニカルシール |
JPH02121759A (ja) * | 1988-10-28 | 1990-05-09 | Harima Ceramic Co Ltd | ガス吹込み用ポーラス耐火物およびその製造方法 |
FR2668145B1 (fr) | 1990-10-17 | 1993-01-22 | Ceramiques Composites | Corps fritte en carbure de silicium notamment pour garniture mecanique et garniture comportant un tel corps fritte. |
FR2684091B1 (fr) * | 1991-11-21 | 1994-02-25 | Pechiney Recherche | Procede de fabrication de carbures metalliques a grande surface specifique sous balayage de gaz inerte a pression atmospherique. |
WO1993025495A1 (en) | 1992-06-12 | 1993-12-23 | The Carborundum Company | Porous silicon carbide |
US5395807A (en) | 1992-07-08 | 1995-03-07 | The Carborundum Company | Process for making silicon carbide with controlled porosity |
-
1994
- 1994-06-01 DE DE4419243A patent/DE4419243A1/de not_active Withdrawn
-
1995
- 1995-02-06 CZ CZ95292A patent/CZ283013B6/cs not_active IP Right Cessation
- 1995-04-05 CA CA002146399A patent/CA2146399C/en not_active Expired - Fee Related
- 1995-05-16 JP JP7140063A patent/JP2722182B2/ja not_active Expired - Fee Related
- 1995-05-27 KR KR1019950013543A patent/KR0159835B1/ko not_active IP Right Cessation
- 1995-05-30 KR KR1019950013923A patent/KR0145490B1/ko not_active IP Right Cessation
- 1995-06-01 DE DE59500042T patent/DE59500042D1/de not_active Expired - Fee Related
- 1995-06-01 CN CN95106686A patent/CN1040341C/zh not_active Expired - Fee Related
- 1995-06-01 EP EP95108427A patent/EP0685437B1/de not_active Expired - Lifetime
-
1996
- 1996-12-20 US US08/772,112 patent/US5762895A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR960000770A (ko) | 1996-01-25 |
JP2722182B2 (ja) | 1998-03-04 |
DE59500042D1 (de) | 1996-12-12 |
CN1121961A (zh) | 1996-05-08 |
KR0145490B1 (ko) | 1998-07-15 |
DE4419243A1 (de) | 1995-12-07 |
CA2146399A1 (en) | 1995-12-02 |
JPH07332367A (ja) | 1995-12-22 |
EP0685437A1 (de) | 1995-12-06 |
CZ283013B6 (cs) | 1997-12-17 |
CN1040341C (zh) | 1998-10-21 |
EP0685437B1 (de) | 1996-11-06 |
KR0159835B1 (ko) | 1998-11-16 |
US5762895A (en) | 1998-06-09 |
CZ29295A3 (en) | 1995-12-13 |
CA2146399C (en) | 1999-08-03 |
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