KR100355350B1 - 실형상 반응결합 탄화규소 제조방법 - Google Patents
실형상 반응결합 탄화규소 제조방법 Download PDFInfo
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- KR100355350B1 KR100355350B1 KR1020000006460A KR20000006460A KR100355350B1 KR 100355350 B1 KR100355350 B1 KR 100355350B1 KR 1020000006460 A KR1020000006460 A KR 1020000006460A KR 20000006460 A KR20000006460 A KR 20000006460A KR 100355350 B1 KR100355350 B1 KR 100355350B1
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- KR
- South Korea
- Prior art keywords
- silicon carbide
- molded body
- slurry
- thermosetting resin
- resin
- Prior art date
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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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
- C04B35/573—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide obtained by reaction sintering or recrystallisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
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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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/91—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics involving the removal of part of the materials of the treated articles, e.g. etching
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/14—Hardening accelerators
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/40—Surface-active agents, dispersants
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
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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)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
Description
턴화규소조성 | 분말 평균 입경 (㎛) | |||||||||
210 | 150 | 100 | 65 | 45 | 35 | 25 | 16 | 10 | 5 | |
1 | 10 | 40 | 35 | 15 | ||||||
2 | 25 | 50 | 25 | |||||||
3 | 80 | 20 | ||||||||
4 | 78 | 22 | ||||||||
5 | 15.6 | 10.4 | 8.3 | 7.3 | 7.3 | 7.3 | 6.3 | 37.5 | ||
6 | 100 | |||||||||
7 | 100 |
조성 | 열가소성 수지 | 열경화성 수지 | 표면 활성제 | 혼합 보조제 | 경화제 |
1 | 50.6 | 32.8 | 10.1 | 6.5 | |
2 | 37.9 | 45.4 | 7.6 | 9.1 | |
3 | 30.3 | 45.4 | 7.6 | 7.6 | 9.1 |
4 | 25.9 | 44.4 | 7.5 | 11.1 | 11.1 |
5 | 21.9 | 61.4 | 4.4 | 12.3 |
Claims (15)
- 평균입경은 3 ~ 2000㎛ 인 탄화규소 분말 60 ~ 90중량%, 열경화성 수지, 열가소성 수지를 5℃ 이하의 온도를 유지하면서 균일하게 혼합하여 슬러리를 만들고,상기 슬러리를 원하는 형상의 몰드에 주입하고 40 ~ 150℃의 온도에서, 1 ~ 12 시간동안 가열 경화시켜 성형체를 형성하고,상기 성형체를 150 ~ 250℃ 의 온도에서 가열하여 열가소성 수지를 탈지시키고,상기 성형체를 진공 또는 불활성 분위기에서 400℃ 이상의 온도로 가열하여 열경화성 수지를 탄화시키고,상기 탄화된 성형체에 진공 또는 환원성 분위기에서 5 ~ 120분 동안, 1410 ~ 1650℃의 범위에서 용융 금속규소를 침투시키는 것으로 이루어지며,상기 열경화성 수지는 퍼푸릴알콜(fufuryl alcohol) 및 퍼푸릴알콜수지(fufuryl alcohol resin)이며, 상기 열가소성 수지는 글리콜이고, 열경화성 수지의 분율은 40 ~ 70% 범위인 것을 특징으로 하는실형상 반응결합 탄화규소 제조방법.
- 삭제
- 삭제
- 삭제
- 제1항에 있어서, 상기 슬러리에 경화제를 추가로 혼합하는 실형상 반응결합 탄화규소 제조방법.
- 제5항에 있어서, 상기 경화제는 자일렌술폰산(xylene sulfonic aicd), p-톨루엔술폰산(p-toluene sulfonic acid)를 사용하는 실형상 반응결합 탄화규소 제조방법.
- 제1항에 있어서, 상기 슬러리에 표면활성제로 트리톤(Triton) X-100를 추가로 혼합하는 실형상 반응결합 탄화규소 제조방법.
- 제1항에 있어서, 상기 슬러리에 혼합보조제로 부탄올을 사용하는 실형상 반응결합 탄화규소 제조방법.
- 삭제
- 제1항에 있어서, 상기 슬러리의 열경화성 수지와 열가소성 수지의 무게비는 70:30 ~ 40:60의 범위인 실형상 반응결합 탄화규소 제조방법.
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
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KR1020000006460A KR100355350B1 (ko) | 2000-02-11 | 2000-02-11 | 실형상 반응결합 탄화규소 제조방법 |
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KR1020000006460A KR100355350B1 (ko) | 2000-02-11 | 2000-02-11 | 실형상 반응결합 탄화규소 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20010081258A KR20010081258A (ko) | 2001-08-29 |
KR100355350B1 true KR100355350B1 (ko) | 2002-10-11 |
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KR100471652B1 (ko) * | 2002-04-30 | 2005-03-08 | 한국과학기술연구원 | 반응결합 탄화규소 제조방법 |
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