CN116375490A - 一种梯度抗氧化碳陶刹车盘及其制备方法 - Google Patents

一种梯度抗氧化碳陶刹车盘及其制备方法 Download PDF

Info

Publication number
CN116375490A
CN116375490A CN202310014500.XA CN202310014500A CN116375490A CN 116375490 A CN116375490 A CN 116375490A CN 202310014500 A CN202310014500 A CN 202310014500A CN 116375490 A CN116375490 A CN 116375490A
Authority
CN
China
Prior art keywords
brake disc
silicon carbide
gradient
carbon
fibers
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.)
Pending
Application number
CN202310014500.XA
Other languages
English (en)
Inventor
汪训国
刘君
徐德祥
江旭
施天明
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.)
Zhejiang Chaotan Carbon New Material Co ltd
Original Assignee
Zhejiang Chaotan Carbon New Material Co ltd
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 Zhejiang Chaotan Carbon New Material Co ltd filed Critical Zhejiang Chaotan Carbon New Material Co ltd
Priority to CN202310014500.XA priority Critical patent/CN116375490A/zh
Publication of CN116375490A publication Critical patent/CN116375490A/zh
Pending 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
    • 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
    • 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
    • C04B35/522—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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • 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
    • C04B35/71—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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • 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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/46—Gases other than oxygen used as reactant, e.g. nitrogen used to make a nitride phase
    • 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
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C04B2235/5244—Silicon carbide
    • 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
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C04B2235/5248—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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/608—Green bodies or pre-forms with well-defined density
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Braking Arrangements (AREA)

Abstract

本发明公开了一种梯度抗氧化碳陶刹车盘及其制备方法，其制备方法包括以下步骤：(1)刹车盘复合毡的制造：按不同比例混合碳纤维和碳化硅纤维制成铺层结构单元，然后按照碳化硅纤维所占比例逐渐减少的规律铺层叠放后针刺成复合毡；(2)采用化学气相沉积的方法在复合毡空隙中沉积碳制成碳化硅纤维梯度含量的刹车盘坯体；(3)将刹车盘胚体石墨化，然后抛光、取平获得成品。本发明制备的刹车盘对磨面的表面含有较多的碳化硅纤维，而在下层的部分则逐渐减少碳化硅纤维比例，从而在减少碳化硅纤维的用量的同时依然具有优异的抗氧化功能。并且由于两种增强纤维比例的变化是梯度变化的，层间没有明显的界面，结合牢固。

Description

一种梯度抗氧化碳陶刹车盘及其制备方法
技术领域
本发明属于碳纤维增强碳陶复合材料制作领域，具体的说，是涉及一种碳纤维-碳化硅纤维比例梯度变化的增强抗氧化碳陶刹车盘及其制备方法。
背景技术
现代运载装置的速度越来越高，作为安全装置的刹车盘的要求也越来越高。碳纤维增强碳刹车盘成为高速运载装置的不二选择。如飞机、高速列车、跑车、重载运输车和高档轿车等均采用碳纤维增强碳的刹车盘。刹车盘在刹车过程中摩擦产生大量的热，使得刹车盘表面温度高达1000℃，在这样的温度下，碳被快速氧化，是刹车盘摩擦性能劣化和降低使用寿命的主要原因。因此，刹车盘的抗氧化是刹车盘面临的课题。
向碳纤维增强碳刹车盘引入抗氧化组元的方法是十分有效的，最常用的是引入碳化硅。目前引入碳化硅的方法有：表面含硅涂层法、改变基体为碳化硅的方法(碳纤维增强碳化硅基体)、添加碳化硅纤维的方法。
表面涂层法的抗氧化组元覆盖在刹车盘表面，涂层和刹车盘界面结合不劳，使用中容易脱落，而且涂层消耗完以后还需要二次涂层，需要频繁定期维修。
碳纤维增强碳化硅基体的方法，从整体上增加了碳化硅，抗氧化性能较好，但是，碳化硅和碳纤维界面结合存在一定不足，内应力较大，而且刹车盘的摩擦系数比较大，只能依靠碳纤维比例调节，难度很大。专利CN201810951265.8公开了一种碳纤维增强碳-碳化硅梯度复合材料、其制备方法及应用。在此专利中，采用硅粉在高温下对碳纤维增强沉积碳进行浸渗-反应制成碳纤维增强碳-碳化硅的刹车盘，其中的梯度是通过不同初始密度的碳纤维预制体形成。该专利的方法可以制成具有梯度碳化硅含量的碳纤维增强碳-碳化硅材料。但该方法有如下缺点，(1)采用硅熔融浸渗进入碳纤维增强碳的胚体中，硅与胚体中碳反应生成碳化硅，硅可能与沉积碳反应，也有可能与作为增强剂的碳纤维反应，与碳纤维反应会使碳纤维的强度大幅下降，进而影响整体材料的强度；(2)硅的熔融浸渗是从外进入胚体内部的，浸渗和反应是同时进行的，反应使碳基体膨胀，容易堵塞空隙通道，所以，该材料内部的硅较少，密度降低，是整个材料的薄弱部位，对材料的均匀性不利。
发明内容
本发明致力于提高碳纤维增强碳刹车盘抗氧化能力，解决目前表面涂层法容易脱落、碳纤维增强碳化硅基体内应力高且摩擦系数大、混杂纤维均相添加使复合材料成本高等问题。本发明制造了一种具有碳化硅纤维梯度含量的刹车盘。
为了达到上述目的，本发明采用如下技术方案：
一种梯度抗氧化碳陶刹车盘的制备方法，包括以下步骤：
(1)刹车盘复合毡的制造：按不同比例混合碳纤维和碳化硅纤维制成铺层结构单元，然后按照碳化硅纤维所占比例逐渐减少的规律铺层叠放后针刺成复合毡；
(2)采用化学气相沉积的方法在复合毡空隙中沉积碳制成碳化硅纤维梯度含量的刹车盘坯体；
(3)将步骤(2)所述的刹车盘胚体石墨化，然后抛光、取平获得成品。
碳化硅纤维也是一种增强纤维，性能与碳纤维相当。本发明采用碳纤维和碳化硅纤维混合增强碳的方法，可以综合二者纤维的优势，碳化硅纤维既起到碳纤维同样的增强作用，使用中也起到抗氧化作用。
并且，刹车盘的对磨面在刹车过程中受到磨损和氧化，使用寿命主要决定于表面的损耗，下层的材料只是起到支撑的作用。刹车盘内部的碳化硅是不起作用的，特别是碳化硅纤维，价格昂贵，均相添加成本较高，所以，减少刹车盘内部碳化硅纤维的用量可以大幅降低成本。但如果只在刹车盘表面添加碳化硅纤维会与下面碳纤维层形成明显界面，使用中也容易脱落。本发明通过在刹车盘对磨面的表面设置较多的碳化硅纤维，而在下层的部分则逐渐减少碳化硅纤维比例，使碳化硅纤维与碳纤维的比例从刹车盘对磨面的表面至下面呈现梯度减少的分布，从而在减少碳化硅纤维的用量的同时依然具有优异的抗氧化功能。并且由于两种增强纤维比例的变化是逐步、梯度变化的，层间没有明显的界面，结合牢固。
优选的，复合毡由上至下碳化硅纤维与碳纤维的重量比梯度的从5:5-3:7降至0:10。
优选的，复合毡由5层铺层结构单元针刺而成，由上至下碳化硅纤维与碳纤维的重量比依次为5:5、3:7、1:9、0:10、0:10。
优选的，复合毡由5层铺层结构单元针刺而成，由上至下碳化硅纤维与碳纤维的重量比依次为4:6、3:7、1:9、0:10、0:10。
优选的，复合毡由5层铺层结构单元针刺而成，由上至下碳化硅纤维与碳纤维的重量比依次为3:7、2:8、1:9、0:10、0:10。
优选的，步骤(1)所述的铺层结构单元的厚度为2mm
优选的，步骤(1)所述的复合毡密度为0.3-0.6g/cm3。
优选的，步骤(2)所述的化学气相沉积以甲烷为碳源气体，沉积温度为900-1300℃，沉积时间240-600小时，沉积压力为0.1-0.15MPa，甲烷通入量与复合毡的体积质量比为2-10m3/kg。
优选的，步骤(2)所述的刹车盘坯体的密度为1.40-1.52g/cm3。
优选的，步骤(3)所述的石墨化温度为2000-2500℃，保温时间15-25分钟。
经由上述的技术方案可知，与现有技术相比，本发明提供了一种碳纤维和碳化硅纤维含量梯度变化的碳陶复合材料刹车盘，该刹车盘具有抗氧化功能，梯度结构克服了表面涂层结构刹车盘涂层容易脱落，需要定期多次涂层的缺点；也克服了碳纤维增强碳化硅基体摩擦系数大、内应力较大的缺点，而且梯度分布的碳化硅纤维减少了碳化硅纤维的用量，使得成本更低。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
对比例1
采用碳纤维铺层，针刺成厚度10mm碳纤维毡，密度0.42g/cm3。将碳纤维毡放入化学气相沉积炉中，在0.1MPa下，通入甲烷，甲烷通入量与碳纤维毡的体积质量比为4m3/kg，在1100℃下沉积420小时至密度1.40g/cm3；2500℃石墨化15分钟后，把表面抛光、取平制成刹车盘。该刹车盘表面摩擦系数0.25，表面硬度54；刹车台架试验(刹车压力为0.65MPa，刹车速度为25m/s)刹车盘的磨损率在1.35μm/次。
实施例1
采用5层由不同比例碳纤维和碳化硅纤维混合制成的铺层结构单元铺层叠放后，针刺成复合毡，复合毡从刹车盘对磨面的上表面到下表面碳化硅纤维与碳纤维的重量比为5:5、3:7、1:9、0:10和0:10，每个铺层结构单元针刺后的厚度为2mm，整体密度0.42g/cm3；将复合毡放入化学气相沉积炉中，在0.1MPa下，通入甲烷，甲烷通入量与复合毡的体积质量比为4m3/kg，在1100℃下沉积400小时至密度1.40g/cm3；2500℃石墨化15分钟后，把表面抛光、取平制成刹车盘。该刹车盘表面摩擦系数0.33，表面硬度65；刹车台架试验刹车盘的磨损率在0.86μm/次。
与对比例1相比，刹车台架试验(刹车压力为0.65MPa，刹车速度为25m/s)刹车盘的磨损率降低了36.3％，使用寿命明显提高。
实施例2
采用5层由不同比例碳纤维和碳化硅纤维混合制成的铺层结构单元铺层叠放后，针刺成复合毡，复合毡从从刹车盘对磨面的上表面到下表面碳化硅纤维与碳纤维的重量比为4:6、3:7、1:9、0:10和0:10，每个比例的铺层结构单元针刺后的厚度为2mm，整体密度0.60g/cm3；将复合毡放入化学气相沉积炉中，在0.15MPa下，通入甲烷，甲烷通入量与复合毡的体积质量比为2m3/kg，在1300℃下沉积240小时至密度1.52g/cm3。2200℃石墨化25分钟后，把表面抛光、取平制成刹车盘。
该刹车盘表面摩擦系数0.29，表面硬度62；刹车台架试验(刹车压力为0.65MPa，刹车速度为25m/s)刹车盘的磨损率在0.70μm/次。
与对比例1相比，刹车台架试验刹车盘的磨损率降低了48.1％，使用寿命明显提高。
实施例3
采用5层由不同比例碳纤维和碳化硅纤维混合制成的铺层结构单元铺层叠放后，针刺成复合毡，复合毡从从刹车盘对磨面的上表面到下表面碳化硅纤维与碳纤维的重量比为3:7、2:8、1:9、0:10和0:10，每个比例的铺层结构单元针刺后的厚度为2mm，整体密度0.30g/cm3；将复合毡放入化学气相沉积炉中，在0.12MPa下，通入甲烷，甲烷通入量与复合毡的体积质量比为10m3/kg，在900℃下沉积600小时至密度1.45g/cm3。2200℃石墨化20分钟后，把表面抛光、取平制成刹车盘。
该刹车盘表面摩擦系数0.27，表面硬度58；刹车台架试验(刹车压力为0.65MPa，刹车速度为25m/s)刹车盘的磨损率在1.05μm/次。
与对比例1相比，刹车台架试验刹车盘的磨损率降低了22.2％，使用寿命明显提高。
可见，采用碳纤维和碳化硅纤维梯度变化的复合毡制造的刹车盘，提高了刹车盘的抗氧化能力，使用中磨损率得到显著降低，进而提高了刹车盘的使用寿命。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (8)

1.一种梯度抗氧化碳陶刹车盘的制备方法，其特征在于，包括以下步骤：
(1)刹车盘复合毡的制造：按不同比例混合碳纤维和碳化硅纤维制成铺层结构单元，然后按照碳化硅纤维所占比例逐渐减少的规律铺层叠放后针刺成复合毡；
(2)采用化学气相沉积的方法在复合毡空隙中沉积碳制成碳化硅纤维梯度含量的刹车盘坯体；
(3)将步骤(2)所述的刹车盘胚体石墨化，然后抛光、取平获得成品。
2.根据权利要求1所述的一种梯度抗氧化碳陶刹车盘的制备方法，其特征在于，所述复合毡由上至下碳化硅纤维与碳纤维的重量比梯度的从5:5-3:7降至0:10。
3.根据权利要求1所述的一种梯度抗氧化碳陶刹车盘的制备方法，其特征在于，步骤(1)所述的铺层结构单元的厚度为2mm。
4.根据权利要求1所述的一种梯度抗氧化碳陶刹车盘的制备方法，其特征在于，步骤(1)所述的复合毡密度为0.3-0.6g/cm3。
5.根据权利要求1所述的一种梯度抗氧化碳陶刹车盘的制备方法，其特征在于，步骤(2)所述的化学气相沉积以甲烷为碳源气体，沉积温度为900-1300℃，沉积时间240-600小时，沉积压力为0.1-0.15MPa，甲烷通入量与复合毡的体积质量比为2-10m3/kg。
6.根据权利要求1所述的一种梯度抗氧化碳陶刹车盘的制备方法，其特征在于，步骤(2)所述的刹车盘坯体的密度为1.40-1.52g/cm3。
7.根据权利要求1所述的一种梯度抗氧化碳陶刹车盘的制备方法，其特征在于，步骤(3)所述的石墨化温度为2000-2500℃，保温时间15-25分钟。
8.一种根据权利1-7任一项所述的制备方法制备的梯度抗氧化碳陶刹车盘。
CN202310014500.XA 2023-01-05 2023-01-05 一种梯度抗氧化碳陶刹车盘及其制备方法 Pending CN116375490A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310014500.XA CN116375490A (zh) 2023-01-05 2023-01-05 一种梯度抗氧化碳陶刹车盘及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310014500.XA CN116375490A (zh) 2023-01-05 2023-01-05 一种梯度抗氧化碳陶刹车盘及其制备方法

Publications (1)

Publication Number Publication Date
CN116375490A true CN116375490A (zh) 2023-07-04

Family

ID=86977573

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310014500.XA Pending CN116375490A (zh) 2023-01-05 2023-01-05 一种梯度抗氧化碳陶刹车盘及其制备方法

Country Status (1)

Country Link
CN (1) CN116375490A (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1189862A (zh) * 1995-05-24 1998-08-05 推进欧洲公司 用于加工复合零件的纤维预成型料的复合纱线及其制备方法
JP2002003281A (ja) * 2000-06-20 2002-01-09 Natl Aerospace Lab 耐酸化型ｃ／ｃ基材
CN109133963A (zh) * 2018-08-20 2019-01-04 广州晶石碳纤新材料有限公司 一种碳纤维增强碳-碳化硅梯度复合材料、其制备方法及应用

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1189862A (zh) * 1995-05-24 1998-08-05 推进欧洲公司 用于加工复合零件的纤维预成型料的复合纱线及其制备方法
JP2002003281A (ja) * 2000-06-20 2002-01-09 Natl Aerospace Lab 耐酸化型ｃ／ｃ基材
CN109133963A (zh) * 2018-08-20 2019-01-04 广州晶石碳纤新材料有限公司 一种碳纤维增强碳-碳化硅梯度复合材料、其制备方法及应用

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
尹洪峰，魏剑: "复合材料 第2版", 28 February 2022, 哈尔滨工业大学出版社, pages: 275 *

Similar Documents

Publication Publication Date Title
CN107266075B (zh) 一种C/C-SiC复合材料及其制备方法和应用
CN108516852B (zh) 一种碳-碳化硅双元基体碳纤维复合材料、其制备方法及应用
EP2046701B1 (en) Braking band composite structure of a brake disc
EP1910247B1 (en) Improvements in or relating to brake and clutch discs
CN101875562B (zh) 一种炭纤维增强炭和六方氮化硼双基体摩擦材料的制备方法
US8454867B2 (en) CVI followed by coal tar pitch densification by VPI
US7927523B2 (en) Densification of C-C composites with pitches followed by CVI/CVD
US20090194895A1 (en) Cvd densified preform followed by vpi and rtm
CN108046819A (zh) 一种结构功能一体化C/C-SiC摩擦材料及制备方法
CN110668838A (zh) 一种碳陶刹车构件及其制备方法
CN111978093A (zh) 高温碳基刹车盘及其制作方法
CN110372408A (zh) 一种陶瓷纤维增韧cvd碳化硅复合材料及其制备方法和应用
WO2024148738A1 (zh) 一种带有陶瓷功能层的高强度炭/陶制动盘
CN114014678B (zh) 一种石英纤维/炭纤维增强炭基复合材料平板及其制备方法
EP2111382B1 (en) Improvements in or relating to brake and clutch discs
CN116375490A (zh) 一种梯度抗氧化碳陶刹车盘及其制备方法
CN112266259B (zh) 一种陶瓷基复合材料及其制备方法和应用
CN113277869A (zh) 一种具有耐磨及抗氧化涂层的碳陶制动盘及其制备方法
CN111892416A (zh) 一种碳陶刹车盘的制备方法
CN114014676B (zh) 一种石英纤维/炭纤维增强炭基复合材料保温桶及其制备方法
CN111056855A (zh) 一种抗氧化性能强碳陶刹车材料的制备方法
CN114368976B (zh) 石英纤维增强炭-二氧化硅复合材料坩埚及其制备方法
CN114368975B (zh) 一种含有α-Al2O3涂层的低密度C/C-SiC复合材料坩埚
CN109293360A (zh) 高速列车陶瓷基复合材料摩擦对偶的制备方法
WO2008093078A1 (en) Improvements in or relating to brake and clutch discs

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination