FR2304590A1 - Cementation process for forming a refractory metal carbide layer - on a (metal) substrate using a volatile halide of the metal to increase its diffusion rate - Google Patents

Cementation process for forming a refractory metal carbide layer - on a (metal) substrate using a volatile halide of the metal to increase its diffusion rate

Info

Publication number
FR2304590A1
FR2304590A1 FR7508950A FR7508950A FR2304590A1 FR 2304590 A1 FR2304590 A1 FR 2304590A1 FR 7508950 A FR7508950 A FR 7508950A FR 7508950 A FR7508950 A FR 7508950A FR 2304590 A1 FR2304590 A1 FR 2304590A1
Authority
FR
France
Prior art keywords
metal
carbon
coating
halide
forming
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
FR7508950A
Other languages
French (fr)
Other versions
FR2304590B1 (en
Inventor
Lionel Vandenbulcke
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.)
Bpifrance Financement SA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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 Agence National de Valorisation de la Recherche ANVAR filed Critical Agence National de Valorisation de la Recherche ANVAR
Priority to FR7508950A priority Critical patent/FR2304590A1/en
Publication of FR2304590A1 publication Critical patent/FR2304590A1/en
Application granted granted Critical
Publication of FR2304590B1 publication Critical patent/FR2304590B1/fr
Granted 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • 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
    • 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
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/87—Ceramics
    • 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
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/34—Embedding in a powder mixture, i.e. pack cementation
    • C23C10/36—Embedding in a powder mixture, i.e. pack cementation only one element being diffused
    • 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
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/34—Embedding in a powder mixture, i.e. pack cementation
    • C23C10/52—Embedding in a powder mixture, i.e. pack cementation more than one element being diffused in one step
    • C23C10/54—Diffusion of at least chromium
    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Chemical Vapour Deposition (AREA)

Abstract

Method of forming a refractory metal carbide coating on a material contg. >=0.5% C comprises cementation in H2 at atmospheric pressure at 850-1250 degrees C. The article is coated with a powdered mixt. of the metal and its halide. The halide transports the metal to the surface and reacts with the carbon in the surface. The coating metal is Ti, Zn, Hf, Nb or Ta, while the substrate contg. the carbon may be carbon, graphite, carbides of W, M, Cr, the alloy Co/WC, cast iron or a steel. Such coated metals may be used in corrosion resistant vessels for chemical reactions, for cutting tools and for high temperature use. The coating is more firmly attached to the surface than in prior art, the coating is continuous and uniform. This is because during the diffusion, the metal as halide diffuses to the surface faster than the carbon, and can hence penetrate into the surface to some extent before reacting with the carbon.
FR7508950A 1975-03-21 1975-03-21 Cementation process for forming a refractory metal carbide layer - on a (metal) substrate using a volatile halide of the metal to increase its diffusion rate Granted FR2304590A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7508950A FR2304590A1 (en) 1975-03-21 1975-03-21 Cementation process for forming a refractory metal carbide layer - on a (metal) substrate using a volatile halide of the metal to increase its diffusion rate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7508950A FR2304590A1 (en) 1975-03-21 1975-03-21 Cementation process for forming a refractory metal carbide layer - on a (metal) substrate using a volatile halide of the metal to increase its diffusion rate

Publications (2)

Publication Number Publication Date
FR2304590A1 true FR2304590A1 (en) 1976-10-15
FR2304590B1 FR2304590B1 (en) 1977-11-25

Family

ID=9152922

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7508950A Granted FR2304590A1 (en) 1975-03-21 1975-03-21 Cementation process for forming a refractory metal carbide layer - on a (metal) substrate using a volatile halide of the metal to increase its diffusion rate

Country Status (1)

Country Link
FR (1) FR2304590A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001726A1 (en) * 1980-11-17 1982-05-27 Metal Techn Inc Turbine Improved interdispersed phase coatings method
FR2576917A1 (en) * 1985-02-01 1986-08-08 Centre Nat Rech Scient Case process for forming protective coatings on articles made of refractory alloys and a device for its implementation
EP0252480A2 (en) * 1986-07-07 1988-01-13 Kabushiki Kaisha Toyota Chuo Kenkyusho Method of surface treatment and apparatus used therefor
WO1997007251A1 (en) * 1995-08-11 1997-02-27 Kennametal Inc. Hard composite and method of making the same
FR2754814A1 (en) * 1996-10-22 1998-04-24 Europ Propulsion THERMOCHEMICAL TREATMENT, IN A HALOGENATED ATMOSPHERE, OF A CARBON MATERIAL, NOT, LITTLE OR VERY POROUS AND ASSOCIATED DEVICE

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001726A1 (en) * 1980-11-17 1982-05-27 Metal Techn Inc Turbine Improved interdispersed phase coatings method
US4352840A (en) * 1980-11-17 1982-10-05 Turbine Metal Technology, Inc. Interdispersed phase coatings method
FR2576917A1 (en) * 1985-02-01 1986-08-08 Centre Nat Rech Scient Case process for forming protective coatings on articles made of refractory alloys and a device for its implementation
EP0252480A2 (en) * 1986-07-07 1988-01-13 Kabushiki Kaisha Toyota Chuo Kenkyusho Method of surface treatment and apparatus used therefor
EP0252480A3 (en) * 1986-07-07 1988-11-30 Kabushiki Kaisha Toyota Chuo Kenkyusho Method of surface treatment and apparatus used therefor
WO1997007251A1 (en) * 1995-08-11 1997-02-27 Kennametal Inc. Hard composite and method of making the same
US5623723A (en) * 1995-08-11 1997-04-22 Greenfield; Mark S. Hard composite and method of making the same
FR2754814A1 (en) * 1996-10-22 1998-04-24 Europ Propulsion THERMOCHEMICAL TREATMENT, IN A HALOGENATED ATMOSPHERE, OF A CARBON MATERIAL, NOT, LITTLE OR VERY POROUS AND ASSOCIATED DEVICE
WO1998017602A1 (en) * 1996-10-22 1998-04-30 Societe Nationale D'etude Et De Construction De Moteurs D'aviation Thermochemical treatment, in halogenated atmosphere, of a carbon-containing material, non-porous, slightly or very porous
US6413585B1 (en) 1996-10-22 2002-07-02 Societe Nationale D'etude Et De Construction De Moteurs D'aviation - S.N.E.C.M.A. Thermochemical treatment, in halogenated atmosphere, of a carbon-containing material

Also Published As

Publication number Publication date
FR2304590B1 (en) 1977-11-25

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