GB1025285A - Improvements in or relating to the pyrolytic deposition of carbon - Google Patents
Improvements in or relating to the pyrolytic deposition of carbonInfo
- Publication number
- GB1025285A GB1025285A GB8504/63A GB850463A GB1025285A GB 1025285 A GB1025285 A GB 1025285A GB 8504/63 A GB8504/63 A GB 8504/63A GB 850463 A GB850463 A GB 850463A GB 1025285 A GB1025285 A GB 1025285A
- Authority
- GB
- United Kingdom
- Prior art keywords
- articles
- carrier members
- reactor
- carrier
- carrier member
- 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
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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5001—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with carbon or carbonisable materials
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Porous carbon, refractory or metal articles are impregnated with carbon by passing the articles slowly through a temperature-controlled reaction zone under non-oxidizing conditions while a flow of hyrolysing hydrocarbon gas is passed through the reaction vessel, preferably in the reverse direction. The reaction vessel may have several temperature-controlled regions so that a uniform temperature may be maintained along the length of the zone, or, alternatively, over a central region at least, a substantially uniform temperature gradient is maintained, in which case the articles pass from the hotter to the cooler zone. Suitable temperatures lie between 800 DEG C. and 900 DEG C. As shown, the articles to be treated, 21, in graphite carrier members 20 are inserted at end A of the reactor 11. The carrier members interlock to form a continuous line through the reactor. During initial heating of the reactor, and during insertion and removal of the carrier members, a stream of flush gas introduced at 16 is passed through the apparatus. For the treatment, hydrocarbon, e.g. benzene, is introduced via inlet pipe 15, which is slidable through gas seal 22 and end cap 23. Gas diffusing through the articles escapes along the serrations 25 of the carrier members 20 (Fig. 3, not shown). End plate 24 of pipe 15 engages with the carrier member due to enter outlet chamber 13. After a residence time of e.g. 20 hours, the carrier members are withdrawn in the direction of X, the end carrier member disengaged and removed from chamber 13 while a fresh charged carrier member is inserted at A. Those already in the tube are pushed along so that the new end carrier member engages with plate 24. <PICT:1025285/C6-C7/1>ALSO:<PICT:1025285/C1/1> In a process for impregnating porous materials such as carbon, refractory and certain metal articles with carbon, the articles are passed slowly through a temperature controlled reaction zone under non-oxidizing conditions while a flow of pyrolizing hydrocarbon gas is passed through the reaction vessel, preferably in the reverse direction. The reaction vessel may have several temperature controlled regions so that a uniform temperature may be maintained along the length of the zone, or, alternatively, over a central region gradient is maintained, in which case the articles pass from the hotter to the cooler zone. Suitable temperatures lie between 800 DEG and 900 DEG C. As shown, the articles to be treated, 21, in graphite carrier members 20 are inserted at end A of the reactor 11. The carrier members interlock to form a continuous line through the reactor. During initial heating of the reactor, and during insertion-removal of the carrier members a stream of flush gas introduced at 16 is passed through the apparatus. For the treatment, hydrocarbon, e.g. benzene, is introduced via inlet pipe 15, which is slidable through gas seal 22 and end cap 23. Gas diffusing through the articles escapes along the serrations 25 of the carrier members 20 (see Fig. 3, not shown). End plate 24 of pipe 15 engages with the carrier member due to enter outlet chamber 13. After a residence time of e.g. 20 hours, the carrier members are withdrawn in the direction of X, the end carrier member disenganged and removed from chamber 13 while a fresh charged carrier member is inserted at A. Those already in the tube are pushed along to engage with plate 24.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8504/63A GB1025285A (en) | 1963-03-04 | 1963-03-04 | Improvements in or relating to the pyrolytic deposition of carbon |
AT183164A AT244303B (en) | 1963-03-04 | 1964-03-03 | Method and device for the pyrolytic deposition of carbon |
LU45584A LU45584A1 (en) | 1963-03-04 | 1964-03-04 | |
BE644698D BE644698A (en) | 1963-03-04 | 1964-03-04 | |
CH279364A CH434211A (en) | 1963-03-04 | 1964-03-04 | Method and device for the pyrolytic deposition of carbon in porous objects |
NL6402150A NL6402150A (en) | 1963-03-04 | 1964-03-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8504/63A GB1025285A (en) | 1963-03-04 | 1963-03-04 | Improvements in or relating to the pyrolytic deposition of carbon |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1025285A true GB1025285A (en) | 1966-04-06 |
Family
ID=9853728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8504/63A Expired GB1025285A (en) | 1963-03-04 | 1963-03-04 | Improvements in or relating to the pyrolytic deposition of carbon |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT244303B (en) |
BE (1) | BE644698A (en) |
CH (1) | CH434211A (en) |
GB (1) | GB1025285A (en) |
LU (1) | LU45584A1 (en) |
NL (1) | NL6402150A (en) |
-
1963
- 1963-03-04 GB GB8504/63A patent/GB1025285A/en not_active Expired
-
1964
- 1964-03-03 AT AT183164A patent/AT244303B/en active
- 1964-03-04 CH CH279364A patent/CH434211A/en unknown
- 1964-03-04 BE BE644698D patent/BE644698A/xx unknown
- 1964-03-04 LU LU45584A patent/LU45584A1/xx unknown
- 1964-03-04 NL NL6402150A patent/NL6402150A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CH434211A (en) | 1967-04-30 |
LU45584A1 (en) | 1964-06-29 |
NL6402150A (en) | 1964-09-07 |
AT244303B (en) | 1965-12-27 |
BE644698A (en) | 1964-09-04 |
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