SE301108B - - Google Patents
Info
- Publication number
- SE301108B SE301108B SE781763A SE781763A SE301108B SE 301108 B SE301108 B SE 301108B SE 781763 A SE781763 A SE 781763A SE 781763 A SE781763 A SE 781763A SE 301108 B SE301108 B SE 301108B
- Authority
- SE
- Sweden
- Prior art keywords
- silicon carbide
- porous
- compound
- alkylsilanes
- covering layer
- Prior art date
Links
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 6
- 229910010271 silicon carbide Inorganic materials 0.000 abstract 6
- 150000001343 alkyl silanes Chemical class 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 150000001722 carbon compounds Chemical class 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 150000008282 halocarbons Chemical class 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000003961 organosilicon compounds Chemical class 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 150000004756 silanes Chemical class 0.000 abstract 1
- 150000003377 silicon compounds Chemical class 0.000 abstract 1
- 239000000126 substance Substances 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
- C04B41/5053—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 non-oxide ceramics
- C04B41/5057—Carbides
- C04B41/5059—Silicon carbide
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/148—Silicon, e.g. silicon carbide, magnesium silicide, heating transistors or diodes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Resistance Heating (AREA)
- Ceramic Products (AREA)
Abstract
<PICT:1048265/C1/1> A high-temperature heating element of silicon carbide having a porous basic structure is provided with a gas-tight covering layer at least 0.01 mm. thick, also of silicon carbide, to increase the oxidation resistance of the element. As shown, a silicon carbide element has a porous region 4, a region 3 where the pore space is sealed with silicon carbide, and a covering layer 2 again of silicon carbide. The element may be of tubular construction (Fig. 3, not shown) or may be of U-shaped bar or plate form. The element is produced by heating the basic porous body in a gas consisting of at least one silicon compound, e.g. halogen-substituted silanes, and at least one carbon compound, e.g. hydrocarbons, halogenated hydrocarbons, or furfuryl compounds, and/or of at least one organosilicon compound, e.g. alkylsilanes or halogenated alkylsilanes, under a pressure of 0.1 to 10 atmospheres at temperatures above 1200 DEG C. The concentration and/or the temperature of the silicon carbide supplying substances may be varied during the process so that coarsely crystalline and finely crystalline particles are alternately deposited for the sealing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0080405 | 1962-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE301108B true SE301108B (en) | 1968-05-20 |
Family
ID=7508849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE781763A SE301108B (en) | 1962-07-13 | 1963-07-12 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH430905A (en) |
| GB (1) | GB1048265A (en) |
| SE (1) | SE301108B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4166346B2 (en) | 1997-10-27 | 2008-10-15 | 日本碍子株式会社 | Corrosion-resistant member, method for producing corrosion-resistant member, and heating device for corrosive substance |
| DE102014205001A1 (en) | 2014-03-18 | 2015-09-24 | Wacker Chemie Ag | Process for the preparation of trichlorosilane |
-
1963
- 1963-07-12 SE SE781763A patent/SE301108B/xx unknown
- 1963-07-12 GB GB2783063A patent/GB1048265A/en not_active Expired
- 1963-07-12 CH CH876363A patent/CH430905A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1048265A (en) | 1966-11-16 |
| CH430905A (en) | 1967-02-28 |
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