EP3436626A1 - Structure fibreuse tissée présentant sur au moins une de ses faces externes un tissage à armure satin - Google Patents
Structure fibreuse tissée présentant sur au moins une de ses faces externes un tissage à armure satinInfo
- Publication number
- EP3436626A1 EP3436626A1 EP17717796.1A EP17717796A EP3436626A1 EP 3436626 A1 EP3436626 A1 EP 3436626A1 EP 17717796 A EP17717796 A EP 17717796A EP 3436626 A1 EP3436626 A1 EP 3436626A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wires
- satin
- wire
- fibrous structure
- points
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/004—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft with weave pattern being non-standard or providing special effects
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/41—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific twist
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D25/00—Woven fabrics not otherwise provided for
- D03D25/005—Three-dimensional woven fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/04—Carbonising or oxidising
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
- D10B2201/24—Viscose
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/02—Reinforcing materials; Prepregs
Definitions
- Woven fibrous structure having on at least one of its outer surfaces a weave with satin weave
- the invention relates to a woven fibrous structure comprising carbon or carbon precursor yarns and having at least a surface blend of yarns having a distinct twist direction. It is known to obtain a fibrous structure woven with a satin weave and comprising carbon threads from the pyrolysis of a fibrous structure woven with a satin weave and comprising son of a carbon precursor. To do this, the fibrous structure formed of the carbon precursor is moved through a furnace by a conveying system. During this setting in motion, at least one of the outer faces of the treated fibrous structure can come into contact and rub with a wall of the furnace. This friction can affect the quality of the process carried out.
- the frictional outer face is a face on which weft threads are predominantly present
- the friction can cause a degradation of the fibrous structure at this outer face in the the extent to which the direction of displacement imposed is transverse to the direction of elongation of the wires mainly present at the level of the friction surface.
- Adding a lubricant to facilitate sliding does not solve this problem satisfactorily as the lubricant evaporates at working temperatures.
- FR 2 902 803 which discloses a fibrous reinforcement structure for a part composite material part comprising such a structure
- DE 43 20 521 which discloses an ink ribbon fabric.
- the invention proposes, according to a first aspect, a woven fibrous structure comprising threads of a carbon precursor and having on at least one of its external faces a weave with satin weave formed by bonding a first set of threads with a second set of threads,
- the first set of wires is predominant on the outer face, said first set of wires being formed of a mixture of wires having a torsion S and wires having a torsion Z.
- carbon precursor is meant a material configured to be converted into carbon by thermal pyrolysis treatment.
- the son of a carbon precursor may for example be polyacrylonitrile (PAN) yarns, oxidized polyacrylonitrile yarns, cellulose yarns such as rayon yarns or pitch yarns.
- the first set of son is majority on the outer face that is to say that at least 50% of the son present on the outer face are son of the first set of son.
- the yarns of the first set of yarns may be warp yarns and the yarns of the second set of yarns may be weft yarns or, conversely, the yarns of the first set of yarns may be weft yarns and the yarns of the second set of threads can be warp threads.
- a reversal of the roles between warp and weft is possible in the following text, and must be considered as also covered by the claims.
- the inventors have found that the presence on the outer face of the fibrous structure of the yarn mixture having distinct torsion directions (torsion direction S or Z) makes it possible, in the event of friction of this external face during the heat treatment of the structure. fibrous, reduce the deviation of the latter.
- the inventors have indeed found that the observed deviation phenomenon is related to the direction of twisting son present on the outer face of the fibrous structure.
- this outer face has only son having a twist S
- the fibrous structure will significantly shift in a given direction.
- this external face has only wires having a Z twist, the fibrous structure will significantly move away in the opposite direction.
- the invention proposes to "average" these deviations in opposite directions by implementing at the outer face of the fibrous structure a mixture of son having a different direction of torsion to reduce the observed deviation phenomenon.
- the invention proposes a woven fibrous structure comprising carbon threads and having on at least one of its external faces a weave with satin weave formed by bonding a first set of threads with a second set of threads.
- the first set of wires is predominant on the outer face, said first set of wires being formed of a mixture of wires having a torsion S and wires having a torsion Z.
- Such a fibrous structure with carbon fibers corresponds to the product obtained after pyrolysis treatment of the fibrous structure with carbon precursor fibers described above.
- the ratio [number of wires having a twist S in the first set of wires] / [number of wires having a twist Z in the first set of wires] can be between 0.75 and 1.25.
- the fibrous structure may be a two-dimensional woven structure with satin weave.
- the fibrous structure may be formed of three-dimensional weave.
- the fibrous structure may be a multi-satin fabric, that is to say a fabric obtained by three-dimensional weaving with several layers of weft threads whose basic armor of each layer is equivalent to a weave of classic satin type but with some points of the weave that bind the layers of weft threads between them.
- the structure may have an outer portion, or skin, adjacent to the outer surface formed by the satin weave with the blend of yarns having a different twist direction and an inner portion, or core, formed by weaving with a weave of different weave of satin weave, for example with interlock weave.
- Armor or interlock fabric means a 3D weave armor in which each layer of warp threads binds several layers of weft threads with all threads of the same warp column having the same movement in the plane of the weave. armor.
- Various multilayer weave modes that can be used to form the core are described in particular in document WO 2006/136755. Such an embodiment corresponds to a woven structure having an evolutionary weave weave. The core of this woven structure may for example be formed by weaving son or braids.
- the structure may comprise on its external face:
- the present invention also relates to a process for treating a fibrous structure as described above, comprising at least one step of heat treatment of the fibrous structure in which this fibrous structure is set in motion through a heating chamber along the direction of elongation of the son of the first set.
- the fibrous structure is arranged so that the outer face is the friction face with the heating chamber and the displacement is performed along the direction of elongation of the first set of threads, the majority of the outer face, in order not to damage the fibrous structure during friction with the heating enclosure.
- the heat treatment of the fibrous structure described above does not cause damage to the latter while limiting or even eliminating the phenomenon of deviation due to the presence, on the outer face, of the mixture of yarns having different twist direction.
- This method may relate to the manufacture of the woven fibrous structure incorporating carbon fibers described above, by pyrolysis of carbon precursor son.
- the present invention also relates to a heat treatment process in which a structure comprising son of a carbon precursor as described above undergoes pyrolysis in the heating chamber to obtain the structure comprising carbon son described upper.
- This process may, alternatively, constitute a thermal desensitization process in which a fibrous structure sized as described above (with carbon precursor son or carbon).
- the present invention also relates to a method for manufacturing a composite material part, comprising at least the following steps: forming a fibrous preform of the part to be obtained from one or more fibrous structures comprising carbon threads as described above, and
- the matrix may be formed of an organic matrix, a ceramic matrix or a carbon matrix.
- the process may comprise impregnating the fiber preform with a resin in the fluid state, such as a phenolic resin.
- the resin used may be a thermoplastic or thermosetting resin, in the latter case the polymerization of the resin is carried out after impregnation in order to obtain the organic matrix.
- the matrix may thus for example be at least partly made of carbon or a ceramic material, such as silicon carbide (SiC).
- the matrix may be formed by a liquid densification process comprising the impregnation with a precursor of the matrix material to be formed followed by the pyrolysis of this precursor.
- a gas densification (chemical vapor infiltration) or a melt infiltration (“Melt-Infiltration”) process may be used to form all or part of the matrix.
- FIG. 1 represents a plane of a weave relative to an embodiment of woven structure according to the invention
- FIG. 2 represents a wire having a direction of torsion S
- FIG. 3 represents a wire having a direction of torsion Z
- FIG. 4 represents the distribution of the satin points on the external face of the woven structure illustrated in FIG.
- FIG. 5 represents the distribution of the satin points on an external face of another embodiment of the woven structure according to the invention
- FIG. 6 shows the distribution of the satin points on an external face of another embodiment of the woven structure according to the invention
- FIG. 7 represents a plane of a weave relative to a woven structure variant according to the invention.
- FIG. 8 schematically illustrates the heat treatment of a woven structure according to the invention through a heating enclosure
- FIG. 9 is a flow chart illustrating the steps of a method of manufacturing a composite material part according to the invention.
- FIG. 1 shows a plane of a weave relative to a first embodiment of woven structure 1 according to the invention.
- the illustrated woven structure 1 is a two-dimensional woven structure with satin weave.
- the woven structure 1 has on its outer face Fl a weave with satin weave formed by connecting TIS and T1Z weft son with Cl chain son.
- the son present on the outer face Fl are son of a carbon precursor or carbon threads.
- the woven structure 1 consists of son of a precursor of carbon or carbon son. What will be described in the following applies equally to these two alternatives.
- the weave plane of the woven structure 1 illustrated has a single layer of TIS and T1Z weft yarns and a single layer of Cl chain yarns.
- Each Cl chain yarn is deflected periodically so as to grasp a weft yarn on n, n being an integer greater than or equal to 3, in order to make the connection between the TIS and T1Z and Cl chain weirs.
- n is equal to 8 but it is not beyond the scope of the the present invention when n takes another value while remaining at least equal to 3.
- the Cl chain son define at the weft son seized satin points Pl.
- the outer face F1 has more than the T1S and TIZ weft son than the C1 chain son.
- the first set of threads correspond to the weft threads T1S and TIZ and the second set of threads son set corresponds to the Cl chain son.
- the Cl son of the second set are located on the side of the outer face Fl only at satin points P1.
- first set corresponding to the warp son and second set to the weft son were considered (first set corresponding to the warp son and second set to the weft son).
- the son are on the outer face Fl more than 50%, or even at least 75%, the son of the first set of T1S and TIZ son.
- the first set of threads (here the weft threads T1S and TIZ) is formed of threads of a precursor of carbon or carbon.
- the first set of yarns comprises both yarns having a twist S and yarns having a Z twist.
- the second set of yarns C 1 may, for its part, be formed of yarns having the same direction of twist or alternatively of yarns. a mixture of twist direction yarns S and Z twist direction yarns.
- the second set of yarns is also formed of yarns of a precursor of carbon or carbon.
- the external face Fl is intended to constitute the rubbing face with the heating chamber during the heat treatment of this fibrous structure 1 and said structure 1 is intended to be set in motion on the along the direction of elongation of the son of the first set T1S and TIZ during this heat treatment.
- the first set of wires T1S and TIZ comprises, in the illustrated example, an alternation of blocks BS of wires T1S having a direction of torsion S and blocks BZ of wires TIZ having a direction of torsion Z.
- the fibrous structure 1 when the moving along the direction of elongation of the son of the second set, the fibrous structure 1 has successively at least a first block BS of T1S son of the first set having a direction of torsion S, a first block BZ son TIZ of the first set having a torsion direction Z, a second block BS of wires T1S of the first set having a direction of torsion S and a second block BZ of wires TIZ of the first set having a direction of torsion Z.
- the blocks BS and BZ son of the first set each have the same number of son but it is not beyond the scope of the invention when these blocks each have a number of different son.
- the ratio [number of T1S wires having a twist S in the first set of wires] / [number of wires T1Z having a twist Z in the first set of wires] is equal to 1, but this ratio may, in the context of the invention, take other values in the example shown, the blocks BS and BZ each comprise four wires of the first set, but, more generally, these blocks BS and BZ may for example each comprise at least one pair of wires. minus two sons of the first set of wires. There is a similar movement of Cl chain threads in all planes of the weave of the woven structure 1.
- FIG. 2 illustrates an example of a T1S wire having a twist S
- FIG. 3 an example of a T1Z wire having a Z twist.
- Each of the wires T1S and T1Z consists of a winding of a plurality of fibers 1S and 2S, respectively. on the one hand, and 1Z and 2Z on the other hand. According to the direction of winding of these fibers together, the wire is designated, in a manner known per se, as having a torsion S or Z.
- such a fibrous structure 1 allows because of the presence of the first set of son comprising son having a distinct direction of torsion to limit the deviation of the fibrous structure during its travel through a heating chamber.
- FIG. 4 illustrates the distribution of the satin points on the external face F1 of the woven structure 1 illustrated in FIG. 1.
- the satin points are represented by black rectangles.
- the wires C11, C12, C1n of the second set C1 are adjacent to the external face F1 only at the satin points P11, Pin.
- the wires T1S and T1Z of the first set located on the side of the external face F1 are in turn represented by a white rectangle in FIG. 4.
- FIG. 4 also indicates the position of the blocks BS (wires of the first set having a direction of twist S) and BZ (wires of the first set having a direction of twist Z).
- the woven structure 1 illustrated in Figure 4 comprises on its outer face Fl a first wire Cil of the second set forming a first set of satin points P11.
- the structure 1 further comprises on its outer face Fl a second wire C12 of the second set, the second wire C12 is adjacent to the first wire Cil and forms a second set of satin points P12.
- the structure 1 further comprises on its outer face Fl a third wire C13 of the second set adjacent to the second wire C12 and forming a third set of satin points P13.
- the satin points P12 of the second set are offset from the satin points P11 of the first set according to a first spacing denoted by Eli.
- the satin stitches P13 of the third set are offset from the satin stitches P12 of the second set at the same spacing Eli.
- the satin points of two sets of adjacent satin points correspond, in the illustrated example, to a displacement of a rectangle downwards and of three rectangles to the left. This correspondence is invariable over the entire external face resulting in an "aligned" distribution of the satin points with each other as illustrated by the arrow in FIG. 4.
- the spacing between sets Adjacent satin dots are variable, as will now be described.
- FIG. 5 illustrates the distribution of the satin stitches on the external face F 2 of a woven structure variant 10 according to the invention.
- the satin dots are represented by black rectangles.
- the son C21, C22, C2n of the second set are adjacent to the outer face F2 only at the points of satin P21, P2n.
- the T2S and T2Z son of the first set on the side of the outer face F2 are in turn represented by a white rectangle.
- FIG. 5 also indicates the position of the blocks BS (wires of the first set having a direction of twist S) and BZ (wires of the first set having a direction of torsion Z).
- the woven structure 10 illustrated in Figure 5 comprises on its outer face F2 a first wire C21 of the second set forming a first set of satin points P21.
- the structure 10 further comprises on its outer face F2 a second wire C22 of the second set, the second wire C22 is adjacent to the first wire C21 and forms a second set of satin points P22.
- the structure 10 further comprises on its outer face F2 a third wire C23 of the second set adjacent to the second wire C22 and forming a third set of satin points P23.
- the satin stitches P22 of the second set are offset by the satin stitches P21. of the first set according to a first spacing noted E21.
- the satin stitches P23 of the third set are, in turn, shifted satin stitches P22 of the second set at a different spacing E22.
- the satin points are distributed in a herringbone configuration as shown.
- FIG. 6 illustrates the distribution of satin points on the outer face F3 of another variant of woven structure 100 according to the invention.
- the satin dots are represented by black rectangles.
- the son C31, C32, C3n of the second set are adjacent to the outer face F3 only at the points of satin P31, P3n.
- the son T3S and T3Z of the first set located on the side of the outer face F3 are in turn represented by a white rectangle.
- FIG. 6 also indicates the position of the blocks BS (wires of the first set having a direction of twist S) and BZ (wires of the first set having a direction of torsion Z).
- the woven structure 100 illustrated in Figure 6 comprises on its outer face F3 a first wire C31 of the second set forming a first set of satin points P31.
- the structure 100 further comprises on its outer face F3 a second wire C32 of the second set, the second wire C32 is adjacent to the first wire C31 and forms a second set of satin points P32.
- the structure 10 further comprises on its outer face F3 a third wire C33 of the second set adjacent to the second wire C32 and forming a third set of satin points P33.
- the satin points P32 of the second set are shifted from the satin points P31 of the first set according to a first spacing noted E31.
- the satin stitches P33 of the third set are, for their part, offset from the satin stitches P32 of the second set at a different spacing E32. Indeed, we see, in the illustrated example, that we go from a satin point of the first set to a satin point of the second together by moving a rectangle down and four rectangles to the left. We also pass from a satin point of the second set to a satin point of the third set by moving a rectangle down and two rectangles to the left.
- the satin points are distributed in a diamond configuration as illustrated.
- FIGS. 5 and 6 implementing a variable spacing between the sets of adjacent satin points advantageously make it possible to further reduce the deflection of the fibrous structure during its heat treatment.
- Fig. 7 shows a satin-like multi-layer 3D weave weave plane (multi-satin weave) bonding a plurality of layers of weft yarns T4S and T4Z.
- the illustrated woven structure 1000 has on its outer face F4 a weave with satin weave formed by connecting weft son T4S and T4Z with C4 warp son.
- the son present on the outer face F4 are son of a carbon precursor or carbon son.
- more weft yarns T4S and T4Z are counted than chain yarns C4.
- the first set of threads correspond to the weft threads T4S and T4Z and the second set of threads correspond to the warp threads C4.
- the son C4 of the second set are located on the side of the outer face F4 only at the points of satin P4. However, it is not beyond the scope of the invention if the opposite was considered (first set corresponding to the warp son and second set to the weft son).
- the first set of wires T4S and T4Z comprises in the illustrated example an alternation of blocks BS of wires T4S having a direction of torsion S and blocks BZ of wires T4Z having a twist direction Z.
- the C4 warp yarns are periodically deviated from their path over a weft layer to alternatively grab a weft yarn of that weft layer and seize together a weft yarn of that weft layer and the weft yarn. frame located in the same column of the upper adjacent weft layer.
- FIG. 8 schematically illustrates the implementation of a method of heat treatment of the fibrous structure 1 described in FIG. 1.
- the fibrous structure 1 is set in motion by means of a control system. conveying through a heating chamber 18.
- the conveying system has a first set of rollers 14a and 14b and a second set of rollers 16a and 16b disposed at both ends of the heating chamber 18 to ensure the scrolling of the structure 1 through the heating chamber 18.
- the structure 1 is set in motion along the direction of elongation of the son of the first set (arrow F).
- the structure 1 can scroll through the heating chamber 18 continuously (ie without stopping) or discontinuous (ie in increments alternating between at least one phase of displacement and a stopping phase).
- the son of the first set are, in the example shown, the T1S and T1Z frame son but it would not depart from the scope of the invention if it were warp son. Due to its weight, the fibrous structure 1 may not have a perfectly rectilinear shape when it travels in the heating chamber 18, which can cause friction of the structure 1 inside said enclosure 18 at the level of a surface S of a wall 12 of the enclosure 18.
- the fibrous structure 1 is further arranged so that the external face Fl is the friction face with the heating chamber 18. As mentioned above, such a configuration allows during the heat treatment, not to produce a deflection of the fibrous structure 1 and not to damage the latter when it passes through the chamber 18.
- the outer face intended to rub inside the heating chamber is a warp face (i e a face on which warp threads are predominantly present).
- the outer face intended to rub inside the heating chamber is a weft face (ie a face on which weft threads are predominantly present).
- the heating chamber 18 may be provided with one or more heating elements intended to impose the desired temperature inside the latter. Alternatively, the heating chamber 18 is placed in an oven configured to impose the desired working temperature.
- the fibrous structure 1 may for example consist of son of a carbon precursor and undergo, during its passage through the chamber 18, a thermal pyrolysis treatment to convert the carbon precursor carbon.
- the heat treatment implemented in the chamber 18 may be a heat desensitization treatment or a thermochemical type treatment.
- the temperature imposed inside the heating chamber 18 may be greater than or equal to 200 ° C.
- the treated fibrous structure 1 can be dry, and in particular not be coated with a lubricant.
- Figure 9 is, for its part, a flow chart of a method of manufacturing a composite material part.
- a first step 150 is performed to form a fibrous preform from one or more fibrous structures as described above.
- a preform may for example be obtained by draping a plurality of fibrous structures on a mandrel, in a manner known per se.
- a matrix is then formed in the porosity of the fibrous preform thus obtained (step 250).
- the matrix makes it possible to fill the porosity of the preform, in all or part of the volume thereof.
- the matrix may be an organic matrix and be formed by impregnating the fiber preform with a resin and then polymerizing the latter.
- the preform is placed in a mold with a cavity having the shape of the molded final part. The resin is injected into the cavity of the mold to impregnate the fiber preform and a heat treatment is then performed to make it polymerize.
- the matrix can be formed, in a manner known per se, by the liquid densification (CVL) or gas densification (CVI) method, or by a combination of these two methods.
- CVL liquid densification
- CVI gas densification
- the liquid process consists in impregnating the preform with a liquid composition containing a precursor of the material of the matrix.
- the precursor is usually in the form of a polymer, such as a resin, optionally diluted in a solvent.
- the conversion of the precursor into a matrix is carried out by heat treatment, generally by heating the mold, after removal of the optional solvent and crosslinking of the polymer, the preform being always maintained in the mold having a shape corresponding to that of the part to be produced.
- the heat treatment comprises a step of pyrolysis of the precursor to form the ceramic matrix.
- liquid precursors of ceramics in particular of SiC, may be polycarbosilane (PCS) or polytitanocarbosilane (PTCS) or polysilazane (PSZ) type resins.
- PCS polycarbosilane
- PTCS polytitanocarbosilane
- PSZ polysilazane
- the densification of the fiber preform can also be carried out, in a known manner, by gaseous method by chemical vapor infiltration of the matrix (CVI).
- CVI chemical vapor infiltration of the matrix
- the fiber preform corresponding to the structure to be produced is placed in an oven in which a gaseous reaction phase is admitted.
- the pressure and the temperature prevailing in the furnace and the composition of the gas phase are chosen so as to allow the diffusion of the gas phase within the porosity of the preform to form the matrix by deposition, at the heart of the material on contact.
- the formation of an SiC matrix can be obtained with methyltrichlorosilane (MTS) giving SiC by decomposition of the MTS.
- MTS methyltrichlorosilane
- a densification combining liquid route and gaseous route can also be used to facilitate implementation, limit costs and production cycles while obtaining satisfactory characteristics for the intended use.
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- Engineering & Computer Science (AREA)
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- Woven Fabrics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1652856A FR3049618B1 (fr) | 2016-04-01 | 2016-04-01 | Structure fibreuse tissee presentant sur au moins une de ses faces externes un tissage a armure satin |
| PCT/FR2017/050715 WO2017168091A1 (fr) | 2016-04-01 | 2017-03-29 | Structure fibreuse tissée présentant sur au moins une de ses faces externes un tissage à armure satin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3436626A1 true EP3436626A1 (fr) | 2019-02-06 |
| EP3436626B1 EP3436626B1 (fr) | 2020-04-29 |
Family
ID=56802532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17717796.1A Active EP3436626B1 (fr) | 2016-04-01 | 2017-03-29 | Structure fibreuse tissée présentant sur au moins une de ses faces externes un tissage à armure satin |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10801136B2 (fr) |
| EP (1) | EP3436626B1 (fr) |
| FR (1) | FR3049618B1 (fr) |
| WO (1) | WO2017168091A1 (fr) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2400379A (en) * | 1944-09-15 | 1946-05-14 | Kendall & Co | Resin-impregnated woven textile fabric and method of producing the same |
| DE69029875T2 (de) * | 1989-04-21 | 1997-06-12 | Nitto Boseki Co Ltd | Schichtstoff |
| GB2277939A (en) * | 1993-05-12 | 1994-11-16 | Fuji Kagaku Shikogyo | Woven fabric for ink ribbon |
| FR2732984B1 (fr) * | 1995-04-13 | 1997-07-04 | Europ Propulsion | Procede de fabrication de pieces structurales complexes monobloc en materiau composite |
| FR2887601B1 (fr) | 2005-06-24 | 2007-10-05 | Snecma Moteurs Sa | Piece mecanique et procede de fabrication d'une telle piece |
| FR2902803B1 (fr) * | 2006-06-21 | 2008-11-14 | Snecma Propulsion Solide Sa | Structure fibreuse de renfort pour piece en materiau composite et piece la comportant |
| JP2013022796A (ja) * | 2011-07-20 | 2013-02-04 | Hiraoka & Co Ltd | ターポリン及びその熱融着接合体 |
-
2016
- 2016-04-01 FR FR1652856A patent/FR3049618B1/fr active Active
-
2017
- 2017-03-29 US US16/089,948 patent/US10801136B2/en active Active
- 2017-03-29 WO PCT/FR2017/050715 patent/WO2017168091A1/fr not_active Ceased
- 2017-03-29 EP EP17717796.1A patent/EP3436626B1/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20190055681A1 (en) | 2019-02-21 |
| FR3049618A1 (fr) | 2017-10-06 |
| FR3049618B1 (fr) | 2020-01-03 |
| EP3436626B1 (fr) | 2020-04-29 |
| US10801136B2 (en) | 2020-10-13 |
| WO2017168091A1 (fr) | 2017-10-05 |
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