WO2023111421A1 - Installation de traitement thermochimique et procede de fabrication d'une piece de friction en materiau composite - Google Patents
Installation de traitement thermochimique et procede de fabrication d'une piece de friction en materiau composite Download PDFInfo
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- WO2023111421A1 WO2023111421A1 PCT/FR2022/052226 FR2022052226W WO2023111421A1 WO 2023111421 A1 WO2023111421 A1 WO 2023111421A1 FR 2022052226 W FR2022052226 W FR 2022052226W WO 2023111421 A1 WO2023111421 A1 WO 2023111421A1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
- C04B35/83—Carbon fibres in a carbon matrix
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- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
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- 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
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- 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
- C04B35/521—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 obtained by impregnation of carbon products with a carbonisable material
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
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- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
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- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
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- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/405—Oxides of refractory metals or yttrium
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- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/448—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
- C23C16/4488—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by in situ generation of reactive gas by chemical or electrochemical reaction
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- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45561—Gas plumbing upstream of the reaction chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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Definitions
- the present invention relates to the manufacture of parts made of composite material and more particularly friction parts based on carbon/carbon (C/C) composite material, such as aircraft brake discs.
- C/C carbon/carbon
- Application EP 2 253 604 proposes a process for obtaining a friction part made of carbon/carbon (C/C) composite material incorporating a ceramic phase in the form of grains or crystallites of one or more zirconium compounds.
- the method disclosed in this application comprises the production of a preform in carbon threads, the densification of the preform by a carbon matrix and, during the manufacturing process, the introduction of ceramic grains or particles dispersed within the room.
- the friction part obtained by the method described in application EP 2 253 604 has good performance.
- this process is more complex than the standard process of making an all-C/C disc. Indeed, in this application, a first stage of densification is carried out with pyrolytic carbon (PyC) by gas phase chemical infiltration (CVI).
- the part is then unloaded from the CVI furnace and then immersed in a zirconia precursor sol, dried and heat-treated.
- the part is then again introduced into the CVI furnace, to complete the densification of the PyC matrix. This insertion of the zirconium, completely dissociated from the process of chemical infiltration in the vapor phase, causes a complexification and an extension of the manufacture.
- Document EP 0 085 601 discloses a process for manufacturing a composite structure in which Zr-OC type deposits by CVI are made using an external chlorider present upstream of the CVI installation.
- this solution has the advantage of being able to directly process the preform in the CVI installation, it nevertheless has several drawbacks. Indeed, phenomena of condensation of zirconium chloride (ZrCI 4 ) occur in the pipes connecting the external chlorider to the CVI installation. In order to avoid these phenomena, it is necessary to maintain the pipes at a high temperature which can exceed 600°C while using valves to ensure the tightness of the circuit. These constraints lead to an increase in the complexity and cost of the technology to be implemented. In addition, the use of an external chlorider increases the overall size of the installation.
- the present invention relates, according to a first aspect, to a thermochemical treatment installation comprising a reaction chamber and a preheating chamber comprising a first compartment defining a first gas circulation path between a first gas inlet and the reaction chamber, characterized in that the preheating chamber further comprises at least a second compartment independent of the first compartment defining a second gas circulation path between a second gas inlet and the reaction chamber, the second compartment containing a metallic or metalloid precursor in the form solid present in the second gas flow path.
- the preheating chamber By thus compartmentalizing the preheating chamber, it is possible to deposit oxide and/or oxycarbide in one or more preforms without having to extract them from the reaction chamber.
- the composite material part manufacturing process is thus greatly simplified and the manufacturing time greatly reduced.
- the problem of the condensation of ZrCl 4 does not arise because the chlorider is here directly integrated into the preheating chamber, which does not lead to any increase in the size of the installation.
- the metallic or metalloid precursor present in the second compartment is a compound or a mixture of compounds chosen among: zirconium, titanium, hafnium and yttrium and the second gas inlet is connected to a source of dichlor or hydrogen chloride.
- the second compartment comprises a multi-perforated plate supporting the metallic or metalloid precursor in solid form.
- a layer of quartz wool is interposed between the multi-perforated plate and the metallic or metalloid precursor.
- the first gas inlet is connected to a source of gaseous pyrolytic carbon precursor.
- the invention also relates to a process for manufacturing a composite material part comprising at least the following steps:
- the first matrix phase being formed by chemical infiltration in the gaseous phase from a first gaseous precursor introduced into the first compartment of the preheating chamber of the thermochemical treatment installation
- the second matrix phase being formed by chemical infiltration in the gaseous phase from a second gaseous precursor obtained by reaction between a reactive gas introduced into the second compartment of the preheating chamber of the thermochemical treatment installation and the metal precursor in solid form present in the second compartment.
- the first and second phases described above can be implemented in different orders or sequences.
- the first phase can be carried out before the second phase.
- the second phase can be carried out before the first phase.
- Each phase can be carried out in sequence, that is to say in several times by alternating a training sequence of the first phase with a training sequence of the second phase.
- the first and second phases can still be formed simultaneously by the gases passing through the preheating chamber and the gases reacting with the precursor in the reaction chamber.
- the metallic or metalloid precursor present in the second compartment is a compound or a mixture of compounds chosen from: zirconium, titanium, hafnium and yttrium and the reactive gas introduced into the second compartment of the chlorine or hydrogen chloride.
- the second compartment comprises a multi-perforated plate supporting the metallic or metalloid precursor in solid form.
- a layer of quartz wool is interposed between the multi-perforated plate and the metallic or metalloid precursor.
- the first gaseous precursor is a pyrolytic carbon precursor.
- FIG. 1 is a schematic sectional view of a thermochemical treatment installation according to one embodiment of the invention.
- the invention applies to any type of installation or furnace used to carry out heat treatments and in which the gas or gases used in the treatments are preheated in a preheating chamber before their introduction into the reaction chamber or treatment zone. of the installation.
- Such installations are used in particular to carry out thermochemical treatments for the densification of porous substrates by chemical infiltration in the gaseous phase.
- FIG. 1 illustrates a thermochemical treatment installation 100 intended for the densification by chemical vapor or gas phase infiltration (CVI) of fiber preforms in accordance with one embodiment of the invention.
- the installation 100 is delimited by a cylindrical side wall 101, a bottom wall 102 and an upper wall 103.
- a gas preheating chamber 110 extends between an inlet plate 108 present in the vicinity of the bottom 102 of the installation and an outlet plate 109 separating the preheating chamber 110 of a loading/treatment zone or reaction chamber 140 delimited by a wall 104.
- the exit plate 109 comprises an opening 1090 allowing the preheating chamber 110 to open into the reaction chamber 140.
- First and second conduits 106 and 107 present through the bottom 102 respectively connect first and second gas inlets 1110 and 1120 present in the inlet plate 108 of the preheating chamber 110.
- the upper wall 103 comprises a passage 105 for the evacuation of the effluent gases, the passage 105 being connected by a pipe 107 to suction means, such as a vacuum pump (not shown).
- the preheating chamber comprises at least two compartments each forming independent gas circulation paths. More specifically, in the example described here, a first compartment 111 delimited between a first cylindrical wall 1112 and a second cylindrical wall 1122 extending between the first gas inlet 1110 and a first outlet 1111 opening at the level of the opening 1090 of the outlet plate 109.
- the first compartment 111 defines a first gas circulation path between the first gas inlet 1110 and the reaction chamber 140.
- the preheating chamber further comprises a second compartment 112 delimited by the second cylindrical wall 1122 extending between the second gas inlet 1120 and a second outlet 1121 opening at the level of the opening 1090 of the outlet tray 109.
- the second compartment 112 defines a second gas circulation path between the second gas inlet 1120 and the reaction chamber 140.
- the second compartment 112 contains a metallic or metalloid precursor in solid form present in the second gas circulation path which is intended to react with a gas introduced into the second gas inlet 1120.
- the second compartment comprises a multi-perforated support plate 1123 interposed in the gas circulation path of the second compartment 112, the plate supporting a solid form, here solid particles 1125 of a metallic or metalloid precursor.
- a layer of quartz wool 1124 can be interposed between the plate multi-perforated support 1123 and the solid particles 1125.
- the quartz wool makes it possible to place the solid metallic or metalloid precursor in the internal chlorider while preventing it from coming into contact with the support plate. Furthermore, it is an inert material and which resists the temperatures encountered in the implementation of the method of the invention.
- the installation is heated by induction.
- the cylindrical side wall 104 delimiting the reaction chamber 140 constitutes an armature, or susceptor, for example made of graphite, which is coupled with an inductor 108 located outside the furnace and formed of at least one coil of induction.
- the first cylindrical wall 1112 also constitutes an armature or susceptor, for example made of graphite, which is also coupled with the inductor 108.
- the second cylindrical wall 1122 can also constitute an armature.
- the heating of the reaction chamber 140 and of the preheating chamber 110 is provided by heating the walls 104 and 1112 respectively when the inductor 108 is supplied with an alternating voltage.
- the coil or coils of the inductor are connected to an alternating voltage generator (not shown).
- the magnetic field created by the inductor 108 induces in the walls 104 and 1112 (susceptors) an electric current which, by Joule effect, causes the heating of the latter, the elements present inside the reaction chamber 140 and the preheater 110 being heated by radiation.
- the heating of the installation 100 can be provided by other means such as lamp ovens, microwaves, laser, or even electric heating means consisting for example of heating resistors embedded in the walls 104 and 1112.
- Fiber preforms 130 to be densified are placed in the reaction chamber 140.
- the fiber preforms 130 correspond to fiber preforms of brake discs made of carbon threads and stacked on top of each other, a wedge 131 being interposed between two consecutive preforms.
- the fiber preforms can be made of carbon fibers, or refractory fibers (for example SiC), or a mixture of carbon fibers and refractory fibers,
- a first gas stream 150 containing a first gaseous precursor of a first phase of a constituent material of the matrix, is admitted into the installation 100 through the first conduit 106 and the first gas inlet 1110. The gas stream is preheated during its circulation in the compartment 111 before its introduction into the reaction chamber 140.
- a second gas flow 160, containing a reactive gas is admitted into the installation 100 through the second pipe 107 and the second gas inlet 1120.
- the gas flow 160 circulates in the second compartment by crossing the multi-perforated plate 1123 and the layer of quartz wool 1124 in order to reach the solid particles of a metallic or metalloid precursor 1125.
- the gas then reacts with the solid particles in order to form a third gas stream 170 corresponding to a second gaseous precursor of a second phase of a constituent material of the matrix.
- the gas stream is preheated during its circulation in the compartment 112 before its introduction into the reaction chamber 140.
- the temperature, the pressure and the flow rates in the installation are adjusted to allow the gas to diffuse within the pores of the fibrous preforms and to form there a deposit of the constituent materials of the matrix by decomposition of one or more constituents of the gas, these constituents forming the precursor of the matrix.
- the process is carried out under reduced pressure, in order to favor the diffusion of the reactive gases in the substrates.
- the transformation temperature of the precursor(s) to form the matrix material such as pyrolytic carbon and/or ceramic and/or carbide and/or oxycarbide, is in most cases between 900°C and 1100°C. °C.
- the first and second phases described above can be implemented in different orders or sequences.
- the first phase can be carried out before the second phase.
- the second phase can be carried out before the first phase.
- Each phase can be carried out in sequence, that is to say in several times by alternating a training sequence of the first phase with a training sequence of the second phase.
- the first and second phases can still be formed simultaneously by the gases passing through the preheating chamber and the gases reacting with the precursor in the reaction chamber.
- the metallic or metalloid precursor present in the second compartment 112 is a compound or a mixture of compounds chosen from at least one of the following compounds: zirconium, titanium, hafnium and yttrium.
- the second gas inlet 1120 is connected to a source of dichlor or hydrogen chloride, this makes it possible to form a Zr-OC, Ti-OC, Si-OC, Hf-OC, Y-OC phase, or a combination of two or more of these phases in the fiber preforms 130.
- the metallic or metalloid precursor is present in the second compartment in solid form, i.e. in the form of particles, powders, grains, sponges, pieces, etc.
- thermochemical treatment installation 100 we will now describe an example of a process for manufacturing a part made of composite material using the thermochemical treatment installation 100 described above, the process of the invention being implemented here for the manufacture of brake discs made of carbon/carbon composite material. carbon (C/C).
- the method begins with the production of annular fiber preforms such as the fiber preforms 130 described above from precursors of carbon yarns or carbon yarns.
- Such preforms are for example made by superimposing plies cut from a fibrous texture made of carbon precursor yarns, bonding the plies together by needling and transforming the precursor into carbon by heat treatment.
- the preform can also be made directly from strata of fibrous texture made of carbon threads which are superimposed and bonded together, for example by needling.
- the solid particles of metallic or metalloid precursor 1125 correspond here to solid particles of zirconium present in the gas circulation path of the second compartment 112.
- the fibrous preforms are then densified by a matrix formed of a first phase of pyrolytic carbon or PyC and a second phase of the Zr-O-C type.
- the densification comprises a first densification cycle in which a first phase of PyC matrix is formed by chemical vapor infiltration from a first gaseous precursor (gas stream 150) introduced into the first compartment 111 of the preheating chamber 110 of the installation 100.
- the first phase PyC can be formed directly on the wires forming the preform.
- the first PyC matrix phase can occupy between 5% and 40%, for example between 15% and 25%, of the initial porosity of the fiber preform.
- a second densification cycle is then carried out during which a second matrix phase comprising the Zr-O-C type phase is formed by chemical vapor infiltration from a second gaseous precursor (gas stream 170) obtained by reaction of a chlorine gas (gas flow 160), for example dichlor or hydrogen chloride, with the solid particles of zirconium present in the second compartment 112.
- a second gaseous precursor gas stream 170
- a chlorine gas gas flow 160
- gas flow 160 for example dichlor or hydrogen chloride
- the second Zr-O-C matrix phase can be formed directly on the first PyC matrix phase. According to this example, the introduction of the second gaseous precursor into the reaction chamber is initiated during the transition from the first to the second densification cycle.
- a gaseous mixture of a PyC precursor and of the second precursor can be introduced into the reaction chamber during the second densification cycle.
- a co-deposition of the Zr-OC phase and of PyC is obtained, formed by chemical vapor infiltration.
- the second matrix phase can occupy between 1% and 10%, for example between 2% and 7%, of the initial porosity of the preform.
- the gaseous precursor of PyC can be chosen from: natural gas, methane, ethane, propane, benzene or a mixture of these compounds.
- the matrix formed by CVI from the first and second precursors can occupy at least 50%, or even at least 75%, of the initial porosity of the fibrous preform.
- a third densification cycle can be carried out, in particular, making it possible to complete the densification of the preform.
- co-deposition of the first phase of PyC and of the second phase of the Zr-O-C type can be carried out by chemical vapor infiltration. It is thus possible, in particular, to obtain inclusions of Zr-O-C distributed throughout the volume of the matrix. These Zr-O-C- inclusions are dispersed in the matrix phase of PyC.
- the relative proportions between the first PyC precursor and the second injected Zr-O-C precursor determine the mass content of the Zr-O-C phase obtained in the final part.
- a person skilled in the art knows, thanks to his general skills, how to determine the flow rates to be used for the various precursors so as to obtain the desired content for the Zr-O-C phase in the final part. In particular, it is possible to obtain in the final part a mass content of between 0.5% and 25%, or even between 2% and 10%, for the phase of the Zr-O-C type.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Composite Materials (AREA)
- Inorganic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Chemical Vapour Deposition (AREA)
- Ceramic Products (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/720,333 US20250042822A1 (en) | 2021-12-15 | 2022-12-02 | Thermochemical treatment facility and process for manufacturing a composite friction component |
| CN202280089320.1A CN118591655A (zh) | 2021-12-15 | 2022-12-02 | 用于制造复合摩擦部件的热化学处理设备和方法 |
| EP22839870.7A EP4448830A1 (fr) | 2021-12-15 | 2022-12-02 | Installation de traitement thermochimique et procédé de fabrication d'une pièce de friction en matériau composite |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2113563A FR3130276A1 (fr) | 2021-12-15 | 2021-12-15 | Installation de traitement thermochimique et procédé de fabrication d’une pièce de friction en matériau composite |
| FRFR2113563 | 2021-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023111421A1 true WO2023111421A1 (fr) | 2023-06-22 |
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ID=80735457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2022/052226 Ceased WO2023111421A1 (fr) | 2021-12-15 | 2022-12-02 | Installation de traitement thermochimique et procede de fabrication d'une piece de friction en materiau composite |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250042822A1 (fr) |
| EP (1) | EP4448830A1 (fr) |
| CN (1) | CN118591655A (fr) |
| FR (1) | FR3130276A1 (fr) |
| WO (1) | WO2023111421A1 (fr) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0085601A1 (fr) | 1982-01-22 | 1983-08-10 | SOCIETE EUROPEENNE DE PROPULSION (S.E.P.) Société Anonyme dite: | Procédé de fabrication d'une structure composite de type réfractaire-réfractaire et structure obtenue |
| US5223305A (en) * | 1990-05-14 | 1993-06-29 | Sharp Kabushiki Kaisha | Apparatus for vapor deposition |
| US5792715A (en) | 1994-10-20 | 1998-08-11 | Societe Europenne De Propulsion | Method of making a fibrous substrate by superposing fibrous layers, and substrate obtained thereby |
| US6009605A (en) | 1995-11-27 | 2000-01-04 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation | Method for making fibrous preforms for producing annular parts from a composite material |
| US6363593B1 (en) | 2001-04-30 | 2002-04-02 | Messier-Bugatti | Feeding a needling machine with a continuous spiral strip |
| EP1458902A1 (fr) * | 2001-12-26 | 2004-09-22 | Messier-Bugatti | Procede et installation de densification de substrats poreux par infiltration chimique en phase gazeuse |
| EP2253604A1 (fr) | 2009-05-13 | 2010-11-24 | Messier Bugatti | Piece a base de materiau composite c/c et procede pour sa fabrication |
| US20170268101A1 (en) * | 2016-03-18 | 2017-09-21 | Goodrich Corporation | Method and apparatus for decreasing the radial temperature gradient in cvi/cvd furnaces |
| WO2019077260A1 (fr) * | 2017-10-19 | 2019-04-25 | Safran Ceramics | Procede de fabrication d'une piece de friction en materiau composite |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2818291B1 (fr) * | 2000-12-19 | 2003-11-07 | Snecma Moteurs | Densification de substrats poreux creux par infiltration chimique en phase vapeur |
| FR2821859B1 (fr) * | 2001-03-06 | 2004-05-14 | Snecma Moteurs | Procede pour la densification par infiltration chimique en phase vapeur de substrats poreux ayant un passage central |
| US7959973B2 (en) * | 2006-11-29 | 2011-06-14 | Honeywell International Inc. | Pressure swing CVI/CVD |
-
2021
- 2021-12-15 FR FR2113563A patent/FR3130276A1/fr active Pending
-
2022
- 2022-12-02 CN CN202280089320.1A patent/CN118591655A/zh active Pending
- 2022-12-02 EP EP22839870.7A patent/EP4448830A1/fr active Pending
- 2022-12-02 US US18/720,333 patent/US20250042822A1/en active Pending
- 2022-12-02 WO PCT/FR2022/052226 patent/WO2023111421A1/fr not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0085601A1 (fr) | 1982-01-22 | 1983-08-10 | SOCIETE EUROPEENNE DE PROPULSION (S.E.P.) Société Anonyme dite: | Procédé de fabrication d'une structure composite de type réfractaire-réfractaire et structure obtenue |
| US5223305A (en) * | 1990-05-14 | 1993-06-29 | Sharp Kabushiki Kaisha | Apparatus for vapor deposition |
| US5792715A (en) | 1994-10-20 | 1998-08-11 | Societe Europenne De Propulsion | Method of making a fibrous substrate by superposing fibrous layers, and substrate obtained thereby |
| US6009605A (en) | 1995-11-27 | 2000-01-04 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation | Method for making fibrous preforms for producing annular parts from a composite material |
| US6363593B1 (en) | 2001-04-30 | 2002-04-02 | Messier-Bugatti | Feeding a needling machine with a continuous spiral strip |
| EP1458902A1 (fr) * | 2001-12-26 | 2004-09-22 | Messier-Bugatti | Procede et installation de densification de substrats poreux par infiltration chimique en phase gazeuse |
| EP2253604A1 (fr) | 2009-05-13 | 2010-11-24 | Messier Bugatti | Piece a base de materiau composite c/c et procede pour sa fabrication |
| US20170268101A1 (en) * | 2016-03-18 | 2017-09-21 | Goodrich Corporation | Method and apparatus for decreasing the radial temperature gradient in cvi/cvd furnaces |
| WO2019077260A1 (fr) * | 2017-10-19 | 2019-04-25 | Safran Ceramics | Procede de fabrication d'une piece de friction en materiau composite |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4448830A1 (fr) | 2024-10-23 |
| FR3130276A1 (fr) | 2023-06-16 |
| US20250042822A1 (en) | 2025-02-06 |
| CN118591655A (zh) | 2024-09-03 |
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