GB1328250A - Process for manufacturing a composite graphite-pyrocarbon -silicon carbide refractory - Google Patents
Process for manufacturing a composite graphite-pyrocarbon -silicon carbide refractoryInfo
- Publication number
- GB1328250A GB1328250A GB5634270A GB5634270A GB1328250A GB 1328250 A GB1328250 A GB 1328250A GB 5634270 A GB5634270 A GB 5634270A GB 5634270 A GB5634270 A GB 5634270A GB 1328250 A GB1328250 A GB 1328250A
- Authority
- GB
- United Kingdom
- Prior art keywords
- matrix
- silicon
- silicon carbide
- carbon
- bath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910010271 silicon carbide Inorganic materials 0.000 title abstract 5
- 239000002131 composite material Substances 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 8
- 239000011159 matrix material Substances 0.000 abstract 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 7
- 229910052710 silicon Inorganic materials 0.000 abstract 7
- 239000010703 silicon Substances 0.000 abstract 7
- 229910052799 carbon Inorganic materials 0.000 abstract 4
- 229910002804 graphite Inorganic materials 0.000 abstract 3
- 239000010439 graphite Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000005470 impregnation Methods 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000011819 refractory material Substances 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 238000005054 agglomeration Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000003345 natural gas Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 abstract 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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
-
- 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
- C04B35/52—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 carbon, e.g. graphite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
1328250 Refractories COMMISSARIAT A L'ENERGIE ATOMIQUE 27 Nov 1970 [28 Nov 1969] 56342/70 Heading C1J An isotropic refractory material having a composition by weight of 60-65% B-silicon carbide, less than 5 % free silicon and the balance graphite and pyro carbon and an open porosity of less than 1% is manufactured from a carbon matrix of density 1À4 to 1À5 g./cm.<SP>3</SP> and a porosity of about 30%, by heating the matrix in vacuo to a temperature at which #-silicon carbide formation occurs, then immersing the matrix in vacuo in a liquid silicon bath at substantially the same temperature for impregnation, with consequential formation of silicon carbide, then removing the matrix from the bath and contacting it with a porous graphite member to remove the excess liquid silicon by capillary attraction. The carbon matrix used is one prepared by agglomerating and compacting a graphite powder of a grain size of 1 to 100 Á. and then giving the compacted material a cracking treatment in the presence of hydrocarbon gas, for example natural gas, at approximately 900 C., conditions being adjusted to provide the required density; conventional binders are used in the agglomeration. For the impregnation the matrix is heated to 1500- 1700 C. before immersing in a silicon bath of that temperature. An amount of silicon equal to about 90% by weight of the carbon is absorbed and mostly converted into the #- carbide. Contacting of the impregnated matrix with porous graphite is effected at 1500-1600 C., during which free silicon in the matrix pores is converted to further #-silicon carbide and surface liquid silicon is removed by capillary attraction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6941198A FR2068160A5 (en) | 1969-11-28 | 1969-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1328250A true GB1328250A (en) | 1973-08-30 |
Family
ID=9043832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5634270A Expired GB1328250A (en) | 1969-11-28 | 1970-11-22 | Process for manufacturing a composite graphite-pyrocarbon -silicon carbide refractory |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE759565A (en) |
| DE (1) | DE2058239A1 (en) |
| FR (1) | FR2068160A5 (en) |
| GB (1) | GB1328250A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6774073B2 (en) | 2002-07-29 | 2004-08-10 | Coorstek, Inc. | Graphite loaded silicon carbide and methods for making |
| CN102186795A (en) * | 2008-09-05 | 2011-09-14 | 原子能与替代能源委员会 | Material having a multilayer architecture and intended for being contacted with liquid silicon |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3037199C2 (en) * | 1980-10-02 | 1983-03-10 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Process for the production of shaped bodies made of silicon carbide or shaped bodies made of graphite or graphite-like material with a surface made of silicon carbide |
| FR3059663B1 (en) * | 2016-12-01 | 2019-01-25 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | PROCESS FOR SURFACIC SILICIURATION OF GRAPHITE |
-
0
- BE BE759565D patent/BE759565A/en unknown
-
1969
- 1969-11-28 FR FR6941198A patent/FR2068160A5/fr not_active Expired
-
1970
- 1970-11-22 GB GB5634270A patent/GB1328250A/en not_active Expired
- 1970-11-26 DE DE19702058239 patent/DE2058239A1/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6774073B2 (en) | 2002-07-29 | 2004-08-10 | Coorstek, Inc. | Graphite loaded silicon carbide and methods for making |
| US7015165B2 (en) | 2002-07-29 | 2006-03-21 | Coorstek, Inc. | Graphite loaded silicon carbide and methods for making |
| CN102186795A (en) * | 2008-09-05 | 2011-09-14 | 原子能与替代能源委员会 | Material having a multilayer architecture and intended for being contacted with liquid silicon |
| JP2012501945A (en) * | 2008-09-05 | 2012-01-26 | コミッサリア タ レネルジー アトミク エ オ エネルジー オルタネイティヴ | Material for multilayer structure and contact with liquid silicon |
| CN102186795B (en) * | 2008-09-05 | 2013-09-18 | 原子能与替代能源委员会 | Material having a multilayer architecture and intended for being contacted with liquid silicon |
| RU2494999C2 (en) * | 2008-09-05 | 2013-10-10 | Комиссарья А Л'Энержи Атомик Э Оз Энержи Альтернатив | Material having multilayer structure and intended for contact with liquid silicon |
| US9145339B2 (en) | 2008-09-05 | 2015-09-29 | Commissariat A L'energie Atomique Et Energies Alternatives | Material having a multilayer architecture and intended for being contacted with liquid silicon |
Also Published As
| Publication number | Publication date |
|---|---|
| BE759565A (en) | 1971-04-30 |
| DE2058239A1 (en) | 1971-06-09 |
| FR2068160A5 (en) | 1971-08-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |