EP0281154A2 - Procédé de réalisation d'un revêtement protecteur à base de carbure de silicium - Google Patents

Procédé de réalisation d'un revêtement protecteur à base de carbure de silicium Download PDF

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Publication number
EP0281154A2
EP0281154A2 EP88103394A EP88103394A EP0281154A2 EP 0281154 A2 EP0281154 A2 EP 0281154A2 EP 88103394 A EP88103394 A EP 88103394A EP 88103394 A EP88103394 A EP 88103394A EP 0281154 A2 EP0281154 A2 EP 0281154A2
Authority
EP
European Patent Office
Prior art keywords
formula
range
compound
same
given above
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.)
Granted
Application number
EP88103394A
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German (de)
English (en)
Other versions
EP0281154A3 (en
EP0281154B1 (fr
Inventor
Volker Dr. Dipl.-Chem. Frey
Bernd Dr. Dipl.-Chem. Pachaly
Norbert Dr. Dipl.-Chem. Zeller
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.)
Wacker Chemie AG
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Wacker Chemie AG
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Filing date
Publication date
Application filed by Wacker Chemie AG filed Critical Wacker Chemie AG
Priority to AT88103394T priority Critical patent/ATE80673T1/de
Publication of EP0281154A2 publication Critical patent/EP0281154A2/fr
Publication of EP0281154A3 publication Critical patent/EP0281154A3/de
Application granted granted Critical
Publication of EP0281154B1 publication Critical patent/EP0281154B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125Process of deposition of the inorganic material
    • C23C18/1275Process of deposition of the inorganic material performed under inert atmosphere

Definitions

  • the object of the invention is to produce a thermally and chemically resistant coating on metallic and non-metallic surfaces.
  • the invention relates to a process for producing a protective coating based on silicon carbide, which is characterized in that a copolymer obtained by reacting at least one disilane of the formula wherein R is the same or different monovalent alkyl, alkenyl or aryl groups and R 1 is the same or different monovalent alkyl groups, optionally in a mixture with a compound of the formula wherein R has the meaning given above, with at least one compound of the formula wherein R has the meaning given above and R 2 represents the methoxy group or has the same meaning as R, in the presence of at least one compound of the formula wherein R has the meaning given above and M represents an alkali metal, and a compound of the formula in which R 1 has the meaning given above, R 3 denotes identical or different alkenyl groups, x lies within the range from 0.5-1.5, y lies within the range from 3-5 and n lies within the range from 500-2000, is applied to the substrate to be protected and is reacted under an inert atmosphere or in a
  • the copolymer is obtained by reacting at least one disilane of the formula wherein R is the same or different monovalent alkyl, alkenyl or aryl groups and R 1 is the same or different monovalent alkyl groups, optionally in a mixture with a compound of the formula wherein R has the meaning given above, with at least one compound of the formula wherein R has the meaning given above and R 2 represents the methoxy group or has the same meaning as R, in the presence of at least one compound of the formula wherein R has the meaning given above and M represents an alkali metal, and a compound of the formula in which R I has the meaning given above, R 3 denotes identical or different alkenyl groups, x is within the range from 0.5-1.5, y is within the range from 3-5 and n is within the range from 500-2000, a compound of the formula wherein R 1 and R 3 have the meaning given above, a within the range from 0.3-0.4, b within the range from 0.0
  • Alkyl groups R, R 1 and R 2 preferably each contain 1 to 12 carbon atoms per radical, such as the methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl and 2-ethylhexyl radical, and also dodecyl radicals .
  • aryl radicals R and R 2 are the phenyl radical and xenyl radicals. Particularly because of the easy accessibility, alkyl groups R, R 1 and R 2 are preferred as methyl groups.
  • the most important example of an alkylenyl group R or R 3 is the vinyl group.
  • the alkali metal can be lithium, sodium, potassium, rubidium or cesium. Preferred as an alkali metal in the compound of the formula are sodium and potassium.
  • Examples of preferred disilanes are 1,1,2-trimethyl-1,2,2-trimethoxydisilane, 1-phenyl-1,2-dimethyl-1,2,2-trimethoxydisilane and 1-vinyl-1,2-dimethyl -1,2,2-trimethoxydisilane.
  • the main example of a compound of the formula is 1,2-dimethyl-1,1,2,2-tetramethoxydisilane.
  • disilanes of the formula used they are preferably used in amounts of 0.5 mol to 1.5 mol per mol of disilane of the formula used.
  • Examples of compounds of the formula which are preferably used are dimethylmethoxysilane and diphenylmethylsilane.
  • compound of formula in amounts of 0.5 to 5 percent by weight, in particular 2 to 4 percent by weight, based in each case on the weight of the amount of disilane used in each case.
  • Compound of formula serves as a catalyst. It is preferably used in amounts of 0.2 to 0.5 percent by weight, based on the weight of the amount of disilane used in each case.
  • R I is a methyl radical
  • R 3 is a vinyl radical
  • y in the range from 3-5 and n in the range from 500-2000.
  • 0.1-10% by weight, in particular 1-5% by weight, of the compound of the formula are preferred in the process according to the invention based on the weight of the disilanes used.
  • R 1 is a methyl radical
  • R 3 is a vinyl radical
  • b in the range 0.01-0.1 c in the range 0.5-0.7
  • d in the range from 10-100.
  • the preparation of such compounds is known, for example from W. Noll, Chemistry and Technology of Silicones, Academic Press, Inc., London 1968.
  • 0.1-10% by weight, in particular 3-5% by weight, of the compound of the formula are preferred based on the weight of the disilanes used.
  • a protective coating based on silicon carbide from a copolymer obtained by reacting at least one disilane of the formula wherein R is the same or different monovalent alkyl, alkenyl or aryl groups and? means the same or different monovalent alkyl groups, optionally in a mixture with a compound of the formula wherein R has the meaning given above, with at least one compound of the formula wherein R has the meaning given above and R 2 represents the methoxy group or has the same meaning as R, in the presence of at least one compound of the formula wherein R has the meaning given above and M represents an alkali metal, and a compound of the formula in which R 1 has the meaning given above, R 3 denotes identical or different alkenyl groups, x lies within the range from 0.5-1.5, y lies within the range from 3-5 and n lies within the range from 500-2000, optionally with the addition of a compound of the formula wherein R 1 and R 3- have the meaning given above, a within the range from 0.3-0.4, b
  • Preferred examples of such solvents are organic aromatic or aliphatic hydrocarbons.
  • toluene petroleum ether of various boiling fractions or butyl acetate are used.
  • the coating according to the invention can be applied in any suitable manner for the application of liquid or pasty substances to substrates, e.g. by dipping, spraying, brushing, pouring or rolling. After the application, the coating is preferably air-dried for 15-60 minutes at temperatures of 10-100 ° C. and then at temperatures of 700-1400 ° C., preferably 900-1100 ° C. under an inert atmosphere, for example generated by flushing with inert gases such as argon or nitrogen, or implemented in vacuo.
  • inert gases such as argon or nitrogen
  • the protective coatings according to the invention preferably have a thickness of 5-2000 ⁇ m, in particular 10-50 ⁇ m.
  • the protective coatings according to the invention are used in particular to produce thermally and chemically resistant surface coatings on metals, ceramics, glass ceramics, fiber materials and carbon.
  • the protection against oxidation of CFC (carbon fiber reinforced carbon), the surface sealing of porous ceramics or fiber materials and the corrosion protection of metals are particularly important.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Silicon Polymers (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Chemically Coating (AREA)
  • Ceramic Products (AREA)
EP88103394A 1987-03-06 1988-03-04 Procédé de réalisation d'un revêtement protecteur à base de carbure de silicium Expired - Lifetime EP0281154B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103394T ATE80673T1 (de) 1987-03-06 1988-03-04 Verfahren zur herstellung eines schutzueberzuges auf basis von siliciumcarbid.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3707224 1987-03-06
DE19873707224 DE3707224A1 (de) 1987-03-06 1987-03-06 Verfahren zur herstellung eines schutzueberzuges auf basis von siliciumcarbid

Publications (3)

Publication Number Publication Date
EP0281154A2 true EP0281154A2 (fr) 1988-09-07
EP0281154A3 EP0281154A3 (en) 1989-07-19
EP0281154B1 EP0281154B1 (fr) 1992-09-16

Family

ID=6322422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103394A Expired - Lifetime EP0281154B1 (fr) 1987-03-06 1988-03-04 Procédé de réalisation d'un revêtement protecteur à base de carbure de silicium

Country Status (6)

Country Link
US (1) US4879142A (fr)
EP (1) EP0281154B1 (fr)
JP (1) JPS63235481A (fr)
AT (1) ATE80673T1 (fr)
CA (1) CA1288645C (fr)
DE (2) DE3707224A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223231A (en) * 1988-07-22 1990-04-04 Dow Corning Composition control of ceramic chars derived from methylpolysilanes
EP0392822A2 (fr) * 1989-04-14 1990-10-17 Ethyl Corporation Compositions précéramiques et produits céramiques
EP0492826A2 (fr) * 1990-12-24 1992-07-01 Dow Corning Corporation Procédé de pyrolyse en sens inversé
GB2234255B (en) * 1988-07-22 1992-09-30 Dow Corning Methylpolysilanes and method for their preparation
US8481640B2 (en) 2007-05-01 2013-07-09 Dow Corning Corporation Polymer compositions

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1011098C2 (nl) * 1999-01-21 2000-07-24 Univ Utrecht Keramische deklaag.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446169A (en) * 1982-09-16 1984-05-01 Westinghouse Electric Corp. Method for making silicon carbide coatings

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52112700A (en) * 1976-02-28 1977-09-21 Tohoku Daigaku Kinzoku Zairyo Amorphous organopolysilicone composite for preparing silicone carbide
GB2039787B (en) * 1978-11-13 1982-12-08 Res Inst For Special Inorganic Producing corrosion resistant articles
JPS5567585A (en) * 1978-11-13 1980-05-21 Tokushu Muki Zairyo Kenkyusho Manufacture of corrosionnresistant* heattresistant and acid resistant molded body
US4418097A (en) * 1981-12-11 1983-11-29 Martin Marietta Corporation Coating for graphite electrodes
US4696827A (en) * 1982-03-12 1987-09-29 Sony Corporation Silicon carbide-carbon composite molded product and process for manufacturing the same
JPS60125375A (ja) * 1983-12-07 1985-07-04 Usui Internatl Ind Co Ltd 金属・セラミツクス接合体及びその製造方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446169A (en) * 1982-09-16 1984-05-01 Westinghouse Electric Corp. Method for making silicon carbide coatings

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223231A (en) * 1988-07-22 1990-04-04 Dow Corning Composition control of ceramic chars derived from methylpolysilanes
GB2223231B (en) * 1988-07-22 1992-09-30 Dow Corning Composition control of ceramic chars derived from methylpolysilanes
GB2234255B (en) * 1988-07-22 1992-09-30 Dow Corning Methylpolysilanes and method for their preparation
EP0392822A2 (fr) * 1989-04-14 1990-10-17 Ethyl Corporation Compositions précéramiques et produits céramiques
EP0392822A3 (fr) * 1989-04-14 1991-10-23 Ethyl Corporation Compositions précéramiques et produits céramiques
EP0492826A2 (fr) * 1990-12-24 1992-07-01 Dow Corning Corporation Procédé de pyrolyse en sens inversé
EP0492826A3 (en) * 1990-12-24 1993-03-03 Dow Corning Corporation Reverse direction pyrolysis processing
US8481640B2 (en) 2007-05-01 2013-07-09 Dow Corning Corporation Polymer compositions
US8592545B2 (en) 2007-05-01 2013-11-26 Dow Corning Corporation Polymer and polymer compositions

Also Published As

Publication number Publication date
ATE80673T1 (de) 1992-10-15
US4879142A (en) 1989-11-07
DE3707224A1 (de) 1988-09-15
JPS63235481A (ja) 1988-09-30
CA1288645C (fr) 1991-09-10
EP0281154A3 (en) 1989-07-19
DE3874569D1 (de) 1992-10-22
EP0281154B1 (fr) 1992-09-16

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