公开(公告)号：EP1259665B1

公开(公告)日：2004-04-28

申请号：EP00985407.6

申请日：2000-12-05

申请人： Snecma Propulsion Solide

发明人： OLRY, Pierre ,  PLAISANTIN, Hervé ,  LOISON, Sylvie ,  PAILLER, René

IPC分类号： D01F9/16 ,  D01F11/14

CPC分类号： D01F9/16 ,  D01F11/14

摘要： The invention relates to a method for obtaining fibrous carbon materials by continuous or non-continuous carbonization of cellulosic fibrous materials in the presence of at least one organosilicon compound. The invention is characterized in that said organosilicon compound is chosen from the group comprising oligomers and resins which are cross-linked, cyclic or branched, which have a numerical average molecular mass of between 500 and 10 000 and which are made up of radicals of formula SiO4 (referred to as Q4 radicals) and radicals of formula SiOxRy(OR')z.

公开(公告)号：EP2064162B1

公开(公告)日：2012-08-01

申请号：EP07858592.4

申请日：2007-10-16

申请人： Snecma Propulsion Solide

发明人： PAILLER, René ,  EBERLING-FUX, Nicolas ,  PHILIPPE, Eric ,  BERTRAND, Sébastien

IPC分类号： C04B35/80 ,  C04B35/573 ,  C04B35/56

CPC分类号： C04B35/62884 ,  B82Y30/00 ,  C04B35/5615 ,  C04B35/573 ,  C04B35/583 ,  C04B35/62863 ,  C04B35/62873 ,  C04B35/62897 ,  C04B35/65 ,  C04B2235/3813 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/3843 ,  C04B2235/386 ,  C04B2235/3891 ,  C04B2235/402 ,  C04B2235/404 ,  C04B2235/428 ,  C04B2235/5248 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/614 ,  C04B2235/616 ,  C04B2235/666 ,  C04B2235/77 ,  C04B2235/78 ,  C04B2235/80 ,  Y10T428/24926

摘要： The process comprises the following steps: formation of a porous fibrous reinforcing structure; introduction of powders into the pores of the fibrous structure, said powders containing constituent elements of the matrix of the composite; and formation of at least the main part of the matrix from said powders, by reaction between the powders and/or with at least one additional element supplied; the powders introduced into the fibrous structure and the element(s) supplied comprising elements for forming at least one discontinuous healing matrix phase comprising a boron compound and at least one discontinuous matrix phase comprising a compound having a crack-deflecting lamellar structure. The formation of at least the main part of the matrix is obtained by the chemical reaction between the powders introduced into the fibrous structure and at least one additional element supplied, or by sintering the powders.

公开(公告)号：EP2234944A2

公开(公告)日：2010-10-06

申请号：EP08864507.2

申请日：2008-12-12

申请人： Snecma Propulsion Solide ,  Centre National de la Recherche Scientifique

发明人： THEBAULT, Jacques ,  ROBIN-BROSSE, Christian ,  QUET, Aurélie ,  PAILLER, René

IPC分类号： C04B41/87 ,  C04B35/653 ,  C04B35/56 ,  C04B35/565 ,  C04B41/49 ,  B22F3/11

CPC分类号： C04B41/87 ,  C04B35/5622 ,  C04B35/573 ,  C04B35/65 ,  C04B41/009 ,  C04B41/5057 ,  C04B2111/00362 ,  C04B2111/00982 ,  C04B2235/3891 ,  C04B2235/40 ,  C04B2235/401 ,  C04B2235/402 ,  C04B2235/404 ,  C04B2235/428 ,  C04B2235/80 ,  F16D69/023 ,  F16D2200/0047 ,  C04B41/4523 ,  C04B41/4556 ,  C04B41/5059 ,  C04B35/83

摘要： The invention relates to a method for making a layer of refractory carbide on the accessible surface of a C/C composite material, that comprises the step of placing the composite material in contact with a solid-form reactive composition containing an atomic proportion higher than or equal to 1/3 and lower than or equal to 95% of a predetermined carbide-precursor metal having a melting point higher than 2000°C, and an atomic proportion of silicon higher than or equal to 5% and lower than or equal to 2/3. The method further comprises the step of impregnating the accessible surface of the C/C composite material with the reactive composition molten at a temperature higher than or equal to the fusion temperature of the predetermined carbide-precursor metal.

公开(公告)号：EP2064162A2

公开(公告)日：2009-06-03

申请号：EP07858592.4

申请日：2007-10-16

申请人： Snecma Propulsion Solide

发明人： PAILLER, René ,  EBERLING-FUX, Nicolas ,  PHILIPPE, Eric ,  BERTRAND, Sébastien

IPC分类号： C04B35/80 ,  C04B35/573 ,  C04B35/56

CPC分类号： C04B35/62884 ,  B82Y30/00 ,  C04B35/5615 ,  C04B35/573 ,  C04B35/583 ,  C04B35/62863 ,  C04B35/62873 ,  C04B35/62897 ,  C04B35/65 ,  C04B2235/3813 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/3843 ,  C04B2235/386 ,  C04B2235/3891 ,  C04B2235/402 ,  C04B2235/404 ,  C04B2235/428 ,  C04B2235/5248 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/614 ,  C04B2235/616 ,  C04B2235/666 ,  C04B2235/77 ,  C04B2235/78 ,  C04B2235/80 ,  Y10T428/24926

摘要： The process comprises the following steps: formation of a porous fibrous reinforcing structure; introduction of powders into the pores of the fibrous structure, said powders containing constituent elements of the matrix of the composite; and formation of at least the main part of the matrix from said powders, by reaction between the powders and/or with at least one additional element supplied; the powders introduced into the fibrous structure and the element(s) supplied comprising elements for forming at least one discontinuous healing matrix phase comprising a boron compound and at least one discontinuous matrix phase comprising a compound having a crack-deflecting lamellar structure. The formation of at least the main part of the matrix is obtained by the chemical reaction between the powders introduced into the fibrous structure and at least one additional element supplied, or by sintering the powders.

公开(公告)号：EP1259665A2

公开(公告)日：2002-11-27

申请号：EP00985407.6

申请日：2000-12-05

申请人： Snecma Propulsion Solide

发明人： OLRY, Pierre ,  PLAISANTIN, Hervé ,  LOISON, Sylvie ,  PAILLER, René

IPC分类号： D01F9/16 ,  D01F11/14

CPC分类号： D01F9/16 ,  D01F11/14

摘要： The invention relates to a method for obtaining fibrous carbon materials by continuous or non-continuous carbonization of cellulosic fibrous materials in the presence of at least one organosilicon compound. The invention is characterized in that said organosilicon compound is chosen from the group comprising oligomers and resins which are cross-linked, cyclic or branched, which have a numerical average molecular mass of between 500 and 10 000 and which are made up of radicals of formula SiO4 (referred to as Q4 radicals) and radicals of formula SiOxRy(OR')z.

公开(公告)号：EP1819852B1

公开(公告)日：2008-11-19

申请号：EP05816104.3

申请日：2005-12-06

申请人： Snecma Propulsion Solide

发明人： OLRY, Pierre ,  SOUMAILLES, Christophe ,  PAILLER, René ,  LOISON, Sylvie ,  KONIG, Roman ,  GUETTE, Alain

IPC分类号： D01F9/14 ,  D01F9/16

CPC分类号： D01F9/16

摘要： A method of obtaining fiber textures of carbon from a cellulose precursor includes the steps of: spinning cellulose filaments (12) from a viscose solution or a cellulose solution; subjecting the cellulose filaments to washing in water (21); impregnating the washed and non-dried cellulose filaments with an aqueous emulsion (41) of at least one organosilicon additive; drying the impregnated cellulose filaments; and obtaining a fiber texture made up of impregnated and dried cellulose filaments prior to carbonization.

公开(公告)号：EP1888813A2

公开(公告)日：2008-02-20

申请号：EP06794422.3

申请日：2006-05-12

申请人： Snecma Propulsion Solide, Société Anonyme

发明人： GUETTE, Alain ,  PAILLER, René ,  EBERLIN-FLUX, Nicolas ,  CHRISTIN, François

IPC分类号： C23C18/16

CPC分类号： C04B35/806 ,  C04B35/573 ,  C04B35/584 ,  C04B35/591 ,  C04B2235/3826 ,  C04B2235/3873 ,  C04B2235/46 ,  C04B2235/483 ,  C04B2235/5248 ,  C04B2235/80 ,  C23C18/1204 ,  C23C18/125 ,  C23C18/1275

摘要： The invention relates to a method for the densification of a porous fibrous refractory substrate, comprising the formation of a solid matrix deposit. The inventive method is performed using a fluid composition containing a reactive fluid that is a precursor of the material of the solid deposit to be formed and an optional dilution fluid. The method is carried out at a temperature and pressure that enable the reactive fluid and/or the optional dilution fluid to be maintained in the supercritical state, while simultaneously and directly forming the solid matrix deposit. In this way, the length of the process can be reduced considerably in relation to standard CVI methods.

公开(公告)号：EP1819852A1

公开(公告)日：2007-08-22

申请号：EP05816104.3

申请日：2005-12-06

申请人： Snecma Propulsion Solide

发明人： OLRY, Pierre ,  SOUMAILLES, Christophe ,  PAILLER, René ,  LOISON, Sylvie ,  KONIG, Roman ,  GUETTE, Alain

IPC分类号： D01F9/14 ,  D01F9/16

CPC分类号： D01F9/16

摘要： A method of obtaining fiber textures of carbon from a cellulose precursor includes the steps of: spinning cellulose filaments (12) from a viscose solution or a cellulose solution; subjecting the cellulose filaments to washing in water (21); impregnating the washed and non-dried cellulose filaments with an aqueous emulsion (41) of at least one organosilicon additive; drying the impregnated cellulose filaments; and obtaining a fiber texture made up of impregnated and dried cellulose filaments prior to carbonization.

公开(公告)号：EP1594816A1

公开(公告)日：2005-11-16

申请号：EP04711393.1

申请日：2004-02-16

申请人： Snecma Propulsion Solide

发明人： THEBAULT, Jacques ,  PAILLER, René ,  ICHARD, Jean-Christophe

IPC分类号： C04B35/80 ,  C04B35/573

CPC分类号： C04B35/624 ,  C04B35/573 ,  C04B35/62655 ,  C04B35/806 ,  C04B35/83 ,  C04B41/009 ,  C04B41/5059 ,  C04B41/87 ,  C04B2111/00362 ,  C04B2111/00982 ,  C04B2235/40 ,  C04B2235/428 ,  C04B2235/48 ,  C04B2235/483 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/614 ,  C04B2235/616 ,  C04B2235/77 ,  C04B2235/80 ,  F16D69/023 ,  F16D2069/003 ,  F16D2200/0047 ,  Y10T428/249984 ,  Y10T428/259 ,  C04B41/4531 ,  C04B35/565

摘要： The invention relates to a method of siliconising thermostructural composite materials and to the parts thus produced. According to the invention, an aerogel or xerogel, constituting a precursor of refractory material, is formed within the porosity of the thermostructural porous composite material. The aforementioned precursor is transformed by means of pyrolysis in order to produce an aerogel or xenogel of refractory material and, subsequently, siliconisation is performed by means of impregnation with a silicon melt-type phase. The aerogel or xerogel is formed by impregnating the composite material with a composition containing at least one organic, organometalloid or organometallic compound in solution, followed by an in situ gelling step. The inventive method can be used to improve the tribiological properties or the thermal conductivity of C/C or C/SiC composite parts or to seal such parts.

公开(公告)号：EP2373596A1

公开(公告)日：2011-10-12

申请号：EP09804294.8

申请日：2009-12-15

申请人： Snecma Propulsion Solide ,  Centre National de la Recherche Scientifique

发明人： PLAISANTIN, Hervé ,  PAILLER, René ,  DELCAMP, Adrien ,  PHILIPPE, Eric

IPC分类号： C04B35/628 ,  C04B41/45 ,  C04B41/91

CPC分类号： C04B35/56 ,  C04B35/565 ,  C04B35/62844 ,  C04B35/62873 ,  C04B35/62884 ,  C04B2235/46 ,  C04B2235/524 ,  C04B2235/5244

摘要： The invention relates to a method for processing metal carbide ceramic fibres (10), including a first reactive gaseous-phase thermal processing (S1) of the halogen type producing a superficial layer (12) mainly containing carbon by chemical conversion of the surface fibres, and a second reactive gaseous-phase thermal processing (S2) carried out with at least one second reactive gas for removing the superficial layer formed at the surface during the chemical conversion.