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1. 发明申请

US20230002290A1 METHOD FOR MAKING A PASSIVATING COATING BASED ON ONE OR MORE SILICON COMPOUNDS ON A CERAMIC MATRIX COMPOSITE REINFORCED WITH CARBON FIBRES AND CERAMIC MATRIX COMPOSITE REINFORCED WITH CARBON FIBRES WITH SUCH COATING 有权
公开(公告)号：US20230002290A1
公开(公告)日：2023-01-05
申请号：US17642904
申请日：2020-09-16
申请人： PETROCERAMICS S.P.A. , C.I.R.A. (CENTRO ITALIANO RICERCHE AEROSPAZIALI) S.C.P.A.
发明人： Lorenzo CAVALLI , Massimiliano VALLE , Mario DE STEFANO FUMO , Giuseppe Carmine RUFOLO , Roberto GARDI , Stefania CANTONI , Massimo ROSA
IPC分类号： C04B41/87 , C04B35/83 , C04B41/45 , C04B41/50
摘要： A method makes a silicon compound-based passivating coating on a ceramic matrix composite reinforced with carbon fibers. A piece made in a ceramic matrix composite reinforced with carbon fibers is placed in a closed chamber of an oven. A predefined load of solid silicon is placed in the chamber avoiding direct contact between the silicon and the piece. The oven is heated while maintaining inside the chamber predefined medium/low vacuum conditions, to generate silicon vapors inside the chamber. The vapors react with substances on the surface of the piece to form a surface coating having composites of the substances with the silicon. The partial pressure of the vacuum, temperature inside the chamber and exposure times of the piece to the silicon vapors to obtain a predefined thickness of the surface coating are chosen. The piece is cooled once the predefined thickness of the passivating coating is reached.

2. 发明申请

US20160116010A1 METHOD FOR MAKING BRAKE DISCS IN FIBER REINFORCED MATERIAL AND BRAKE DISC MADE WITH SUCH METHOD 审中-公开
标题翻译：用这种方法在纤维增强材料和制动盘上制造刹车盘的方法
公开(公告)号：US20160116010A1
公开(公告)日：2016-04-28
申请号：US14787241
申请日：2013-04-26
申请人： PETROCERAMICS S.P.A.
发明人： Massimiliano VALLE , Mirco CHIODI , Furio ROZZA , Marco ORLANDI , Roberto VAVASSORI
IPC分类号： F16D65/12 , F16D69/02 , B29C71/02 , B29C70/32 , B29C70/54
摘要： A brake disc made of fiber-reinforced material includes a braking band having a predetermined thickness. The method for making the brake discs includes setting up a winding mandrel and forming at least one layer of fibers having a predetermined width. The layer of fibers is impregnated with a binder resin. The impregnated layer is wound about the mandrel, forming a hollow cylindrical body having a predefined outer diameter and an inner diameter substantially equivalent to the mandrel diameter. The layer of fibers is wound about the mandrel in a winding direction substantially parallel to the lengthwise direction of the layer. The cylindrical body is heated to at least partly cross-link the binder resin and obtain a solid semi-finished cylindrical body. The cylindrical body is cut in slices transversely to the cylindrical body axis according to predetermined thicknesses. Each slice is a disc-shaped body defining the disc's braking band.
摘要翻译：由纤维增强材料制成的制动盘包括具有预定厚度的制动带。用于制造制动盘的方法包括设置卷绕心轴并形成至少一层具有预定宽度的纤维。用粘合剂树脂浸渍纤维层。浸渍层围绕心轴缠绕，形成具有预定外径和基本上等于心轴直径的内径的中空圆柱体。纤维层绕基本平行于层的长度方向的缠绕方向围绕心轴缠绕。将圆筒体加热至少部分地将粘合剂树脂交联并获得固体半成品圆柱体。根据预定的厚度，圆柱体沿圆柱体轴线横切切片。每个切片是限定光盘制动带的盘形主体。

3. 发明申请

US20210380493A1 METHOD AND ASSEMBLY FOR INFILTRATION AND RAPID PHASE DEPOSITION OF POROUS COMPONENTS 有权
公开(公告)号：US20210380493A1
公开(公告)日：2021-12-09
申请号：US17290503
申请日：2019-10-30
申请人： PETROCERAMICS S.P.A.
发明人： Paolo VAVASSORI , Massimiliano VALLE
IPC分类号： C04B35/83 , C04B41/00 , C04B41/45
摘要： A chemical vapor infiltration (CVI) method for densifying at least one porous component includes placing the at least one porous component inside a crucible, bringing temperature inside the crucible to a value adapted to densify the porous component to transform it into a densified component, bringing pressure inside the crucible between 0.1 KPa and 25 KPa, once operational temperature and pressure are reached, flowing gas inside the crucible, gas being suitable for densifying the porous component to transform it into a densified component, and keeping an oxidizing environment outside the crucible, the external environment lapping against the crucible. The crucible is provided of at least one material having thermal conductivity greater than 30 W/mK from room temperature to at least 1000° C. selected from: sintered silicon carbide (SiC), silicon-infiltrated silicon carbide (Si—SiC), sintered boron carbide (B4C), silicon-infiltrated boron carbide (Si—B4C), sintered zirconium carbide (ZrC), silicon-infiltrated zirconium carbide (Si—ZrC), a combination of silicon carbide (SiC), boron carbide (B4C) and sintered and/or silicon-infiltrated zirconium carbide (ZrC).

4. 发明申请

US20170328429A1 METHOD FOR MAKING BRAKE DISCS IN MATERIAL REINFORCED WITH FIBRES AND BRAKE DISC MADE WITH SUCH METHOD 审中-公开
公开(公告)号：US20170328429A1
公开(公告)日：2017-11-16
申请号：US15518210
申请日：2015-10-09
申请人： PETROCERAMICS S.p.A.
发明人： Massimiliano VALLE
IPC分类号： F16D65/12 , F16D65/02
CPC分类号： F16D65/125 , F16D65/126 , F16D2065/132 , F16D2200/0047 , F16D2200/0052 , F16D2200/006 , F16D2200/0091 , F16D2250/0023
摘要： A method makes brake discs of fiber-reinforced materials. Each brake disc includes a braking band having a predefined thickness. At least one fiber layer having a predefined width is formed and wound around the mandrel to form a coaxially hollow cylindrical body having an outer diameter and an inner diameter substantially equivalent to the mandrel diameter. The fiber layer is wound around the mandrel in a winding direction substantially parallel to the direction of the layer length. The semi-finished cylindrical body is cut in slices transversally to the longitudinal axis of the cylindrical body in predefined thicknesses. Each slice is a disc-shaped body defining the braking band of a brake disc. The cylindrical body is needled according to a substantially radial direction to orient part of the fibers according to this direction by arranging the fibers in connection between adjacent coils of the fiber layer wound around the mandrel.

5. 发明申请

US20200207668A1 PRE-IMPREGNATED FIBRE-REINFORCED COMPOSITE MATERIAL AND FIBRE-REINFORCED COMPOSITE CERAMIC MATERIAL, OBTAINED BY FORMING AND SUBSEQUENT PYROLYSIS OF SAID PREIMPREGNATED MATERIAL 审中-公开
公开(公告)号：US20200207668A1
公开(公告)日：2020-07-02
申请号：US16636068
申请日：2018-08-03
申请人： PETROCERAMICS S.P.A.
发明人： Lorenzo CAVALLI , Massimiliano VALLE
IPC分类号： C04B35/80 , C04B35/628 , C04B35/645
摘要： The invention relates to a pre-impregnated fibre-reinforced composite material in laminar form, obtained impregnating a fibrous mass with a polymeric binder composition and intended to be subjected to successive forming and pyrolysis operations to produce a fibre-reinforced composite ceramic material. The polymeric binder composition is based on one or more resins chosen from the group consisting of siloxane resins and silsesquioxane resins, and can optionally comprise one or more organic resins. The polymeric binder composition is a liquid with viscosity between 55000 and 10000 mPas at temperatures between 50° C. and 70° C. The polymeric binder composition forms a polymeric binding matrix, not cross-linked or only partially cross-linked that fills the interstices of the fibrous mass. The invention also relates to a method for making said pre-impregnated fibre-reinforced composite material in laminar form. The invention further relates to a fibre-reinforced composite ceramic material, obtained by forming and subsequent pyrolysis of a pre-impregnated fibre-reinforced composite material, as well as a method for making said material.

6. 发明申请

US20170334132A1 Printing method and device, composite material 审中-公开
公开(公告)号：US20170334132A1
公开(公告)日：2017-11-23
申请号：US15599264
申请日：2017-05-18
申请人： PETROCERAMICS S.P.A.
发明人： Dino Norberto BOCCACCINI , Massimiliano VALLE
IPC分类号： B29C64/141 , B33Y30/00 , B33Y70/00 , B33Y80/00 , B22D23/00 , B22F3/00 , B28B1/00 , B32B5/12 , B32B5/26 , C04B35/628 , B33Y10/00 , C04B35/83 , C04B35/80 , C04B35/657 , C08J5/04 , B29K707/04
CPC分类号： B29C64/141 , B22D23/003 , B22F3/008 , B28B1/001 , B29C64/106 , B29C70/14 , B29C70/38 , B29K2707/04 , B32B5/12 , B32B5/26 , B32B2260/023 , B32B2260/046 , B32B2262/106 , B33Y10/00 , B33Y30/00 , B33Y70/00 , B33Y80/00 , C04B35/62844 , C04B35/62863 , C04B35/62878 , C04B35/657 , C04B35/806 , C04B35/83 , C04B2235/3826 , C04B2235/422 , C04B2235/428 , C04B2235/5248 , C04B2235/616 , C08J5/04 , C08J2300/00
摘要： The present invention relates to a method of printing a composite material (1), for example polymeric, carbonaceous, siliconic or metallic comprising steps of: i) providing a plurality of bundles (2) of reinforcement fibres (4), wherein the reinforcement fibres (4) have a length in the range 3-50 mm and are in the number of about 1,000-100,000 in each bundle (2); ii) aligning the bundles (2) along a predetermined path (X, X′); iii) incorporating at least part of the bundles (2) into a matrix (6, 8), for example polymeric, carbonaceous, siliconic or metallic, preserving the alignment along said path (X, X′); iv) laying and solidifying at least one layer (8) of the matrix (6, 8) of step iii) to make the composite material (1).

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