GB1048265A - Silicon carbide heating element - Google Patents

Silicon carbide heating element

Info

Publication number
GB1048265A
GB1048265A GB2783063A GB2783063A GB1048265A GB 1048265 A GB1048265 A GB 1048265A GB 2783063 A GB2783063 A GB 2783063A GB 2783063 A GB2783063 A GB 2783063A GB 1048265 A GB1048265 A GB 1048265A
Authority
GB
United Kingdom
Prior art keywords
silicon carbide
porous
compound
alkylsilanes
covering layer
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
Application number
GB2783063A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Plania Werke AG
Original Assignee
Siemens Plania Werke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Plania Werke AG filed Critical Siemens Plania Werke AG
Publication of GB1048265A publication Critical patent/GB1048265A/en
Expired legal-status Critical Current

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
    • C04B41/009—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.
GB2783063A 1962-07-13 1963-07-12 Silicon carbide heating element Expired GB1048265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0080405 1962-07-13

Publications (1)

Publication Number Publication Date
GB1048265A true GB1048265A (en) 1966-11-16

Family

ID=7508849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2783063A Expired GB1048265A (en) 1962-07-13 1963-07-12 Silicon carbide heating element

Country Status (3)

Country Link
CH (1) CH430905A (en)
GB (1) GB1048265A (en)
SE (1) SE301108B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CH430905A (en) 1967-02-28
SE301108B (en) 1968-05-20

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