GB1021662A - Treatment of porous bodies - Google Patents

Treatment of porous bodies

Info

Publication number
GB1021662A
GB1021662A GB11670/62A GB1167062A GB1021662A GB 1021662 A GB1021662 A GB 1021662A GB 11670/62 A GB11670/62 A GB 11670/62A GB 1167062 A GB1167062 A GB 1167062A GB 1021662 A GB1021662 A GB 1021662A
Authority
GB
United Kingdom
Prior art keywords
sic
organosilicon
temperature
vapour
pores
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
GB11670/62A
Inventor
John Chown
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.)
Morganite Research and Development Ltd
Original Assignee
Morganite Research and Development Ltd
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 Morganite Research and Development Ltd filed Critical Morganite Research and Development Ltd
Priority to GB11670/62A priority Critical patent/GB1021662A/en
Publication of GB1021662A publication Critical patent/GB1021662A/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
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/956—Silicon carbide
    • C01B32/963—Preparation from compounds containing silicon
    • C01B32/977—Preparation from organic compounds containing silicon
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Ceramic Products (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

The permeability of a porous body is reduced by heating the body in the vapour of an organosilicon compound at a temperature of 700-1100 DEG C., so that SiC is deposited in the pores. The organosilicon compound preferably has a boiling-point between 30 DEG and 300 DEG C. and may be a simple or substituted organosilane having a Si : C ratio of 1 : 1, e.g. CH3SiH3, CH3SiCl3 or CH3SiCl2H, or other than 1 : 1, e.g. PhSiCl3, in which case a Si- or C-containing compound, e.g. SiCl4, CCl4, CH4, may be added in amount to give a 1 : 1 ratio. The body may be of SiC (prefired at 2000 DEG C. or treated with HF to remove SiO2), graphite, alumina, nitrides, e.g. SiN, silicides, borides or other carbides; which, if unfired, are pressed into shape with a binder. The organosilicon vapour may be carried by an inert gas into the reaction chamber, maintained at or above atmospheric pressure or at low organosilicon partial pressure, containing the body, which may have a vacuum applied to its faces; or the body may be held in refluxing vapours while maintaining a bleed of inert gas, e.g. A or H2. The body may be heated by means of electrical or radio frequency and the temperature held for 2-150 hrs., or a continuously increasing temperature is employed (resulting in a deposit of SiC on the surface as well as pores).
GB11670/62A 1962-03-27 1962-03-27 Treatment of porous bodies Expired GB1021662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11670/62A GB1021662A (en) 1962-03-27 1962-03-27 Treatment of porous bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11670/62A GB1021662A (en) 1962-03-27 1962-03-27 Treatment of porous bodies

Publications (1)

Publication Number Publication Date
GB1021662A true GB1021662A (en) 1966-03-09

Family

ID=9990530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11670/62A Expired GB1021662A (en) 1962-03-27 1962-03-27 Treatment of porous bodies

Country Status (1)

Country Link
GB (1) GB1021662A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016036A4 (en) * 1978-06-02 1980-09-29 Us Health Organosilicon infiltrated reaction sintered silicon nitride.
US4560589A (en) * 1982-09-22 1985-12-24 Shin-Etsu Chemical Co., Ltd. Method for providing a coating layer of silicon carbide on substrate surface
EP0320458A1 (en) * 1987-12-10 1989-06-14 Alusuisse-Lonza Services Ag Foam ceramic for a filter for the purification of diesel engine exhaust gases
WO2019133557A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
WO2019133559A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
WO2019133556A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
WO2019133558A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
WO2019133561A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
WO2019133560A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016036A4 (en) * 1978-06-02 1980-09-29 Us Health Organosilicon infiltrated reaction sintered silicon nitride.
EP0016036A1 (en) * 1978-06-02 1980-10-01 THE UNITED STATES OF AMERICA as represented by the Secretary United States Department of Commerce Organosilicon infiltrated reaction sintered silicon nitride
US4560589A (en) * 1982-09-22 1985-12-24 Shin-Etsu Chemical Co., Ltd. Method for providing a coating layer of silicon carbide on substrate surface
EP0320458A1 (en) * 1987-12-10 1989-06-14 Alusuisse-Lonza Services Ag Foam ceramic for a filter for the purification of diesel engine exhaust gases
US4965101A (en) * 1987-12-10 1990-10-23 Swiss Aluminium Ltd. Ceramic foam for filters for cleaning exhaust gases of diesel engines
WO2019133557A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
WO2019133559A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
WO2019133556A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
WO2019133558A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
WO2019133561A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
WO2019133560A1 (en) 2017-12-27 2019-07-04 Heraeus Gmsi Llc Process for manufacturing a silicon carbide coated body
EP3514257A1 (en) 2018-01-18 2019-07-24 Heraeus GMSI LLC Process for manufacturing a silicon carbide coated body
EP3514127A1 (en) 2018-01-18 2019-07-24 Heraeus GMSI LLC Process for manufacturing a silicon carbide coated body
EP3514130A1 (en) 2018-01-18 2019-07-24 Heraeus GMSI LLC Process for manufacturing a silicon carbide coated body
EP3514259A1 (en) 2018-01-18 2019-07-24 Heraeus GMSI LLC Process for manufacturing a silicon carbide coated body
EP3514129A1 (en) 2018-01-18 2019-07-24 Heraeus GMSI LLC Process for manufacturing a silicon carbide coated body
EP3514128A1 (en) 2018-01-18 2019-07-24 Heraeus GMSI LLC Process for manufacturing a silicon carbide coated body

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