Bonding of carbon-carbon composites using titanium carbide
    2.
    发明授权
    Bonding of carbon-carbon composites using titanium carbide 有权
    使用碳化钛粘结碳 - 碳复合材料

    公开(公告)号:US07858187B2

    公开(公告)日:2010-12-28

    申请号:US11391255

    申请日:2006-03-29

    IPC分类号: B32B9/00

    摘要: Method of joining carbon-carbon composite pieces together, e.g. in the refurbishment of aircraft brake discs. The method includes the steps of: providing a first carbon-carbon composite piece and a second carbon-carbon composite piece, wherein the second carbon-carbon composite piece has a surface that is complementary to a surface of said first carbon-carbon composite piece; providing a layer of a mixture of titanium powder and carbon powder on the first complementary mating surface; arranging the second carbon-carbon composite piece on the powder layer such that the second complementary mating surface is matched to the first complementary mating surface, thereby forming a construct of the first carbon-carbon composite piece, the powder layer, and the second carbon-carbon composite piece; placing the construct into a press and applying pressure to the construct to press together the two pieces joined at their complementary surfaces; and applying an electrical current to the powder in the construct to initiate an oxidation-reduction reaction, thereby bonding the carbon-carbon composite pieces together.

    摘要翻译: 将碳 - 碳复合材料片连接在一起的方法,例如 在飞机制动盘的翻新。 该方法包括以下步骤:提供第一碳 - 碳复合片和第二碳 - 碳复合片,其中所述第二碳 - 碳复合片具有与所述第一碳 - 碳复合片的表面互补的表面; 在第一互补配合表面上提供钛粉末和碳粉末的混合物层; 将第二碳 - 碳复合片布置在粉末层上,使得第二互补配合表面与第一互补配合表面匹配,由此形成第一碳 - 碳复合片,粉末层和第二碳 - 碳复合片的构造, 碳复合片; 将构造物放置在压力机中并向构件施加压力以将在其互补表面处接合的两个块压在一起; 并向构件中的粉末施加电流以引发氧化还原反应,从而将碳 - 碳复合材料片粘合在一起。

    Bonding of carbon-carbon composites using titanium carbide
    5.
    发明申请
    Bonding of carbon-carbon composites using titanium carbide 有权
    使用碳化钛粘结碳 - 碳复合材料

    公开(公告)号:US20070235126A1

    公开(公告)日:2007-10-11

    申请号:US11391255

    申请日:2006-03-29

    IPC分类号: B32B37/00

    摘要: Method of joining carbon-carbon composite pieces together, e.g. in the refurbishment of aircraft brake discs. The method includes the steps of: providing a first carbon-carbon composite piece and a second carbon-carbon composite piece, wherein the second carbon-carbon composite piece has a surface that is complementary to a surface of said first carbon-carbon composite piece; providing a layer of a mixture of titanium powder and carbon powder on the first complementary mating surface; arranging the second carbon-carbon composite piece on the powder layer such that the second complementary mating surface is matched to the first complementary mating surface, thereby forming a construct of the first carbon-carbon composite piece, the powder layer, and the second carbon-carbon composite piece; placing the construct into a press and applying pressure to the construct to press together the two pieces joined at their complementary surfaces; and applying an electrical current to the powder in the construct to initiate an oxidation-reduction reaction, thereby bonding the carbon-carbon composite pieces together. The titanium powder particles may be from 25 to 250 microns in diameter, and the carbon powder (e.g., graphite particles) may be 1 to 10 microns in diameter.

    摘要翻译: 将碳 - 碳复合材料片连接在一起的方法,例如 在飞机制动盘的翻新。 该方法包括以下步骤:提供第一碳 - 碳复合片和第二碳 - 碳复合片,其中所述第二碳 - 碳复合片具有与所述第一碳 - 碳复合片的表面互补的表面; 在第一互补配合表面上提供钛粉末和碳粉末的混合物层; 将第二碳 - 碳复合片布置在粉末层上,使得第二互补配合表面与第一互补配合表面匹配,由此形成第一碳 - 碳复合片,粉末层和第二碳 - 碳复合片的构造, 碳复合片; 将构造物放置在压力机中并向构件施加压力以将在其互补表面处接合的两个块压在一起; 并向构件中的粉末施加电流以引发氧化还原反应,从而将碳 - 碳复合材料片粘合在一起。 钛粉末颗粒的直径可以为25至250微米,碳粉末(例如石墨颗粒)的直径可以为1至10微米。

    Resin transfer molding to toughen composite beam keys
    6.
    发明授权
    Resin transfer molding to toughen composite beam keys 失效
    树脂传递成型加强复合梁键

    公开(公告)号:US07763192B2

    公开(公告)日:2010-07-27

    申请号:US11389022

    申请日:2006-03-27

    IPC分类号: B29C45/14 C01B31/02 B64C25/00

    摘要: Method of manufacturing composite wheel beam key by: forming entirely from carbon fiber precursors or from carbon fiber precursors and ceramic materials a fibrous preform blank in a shape of a desired wheel beam key, wherein the fiber volume fraction of the preform blank is at least 50%; carbonizing the carbon fiber precursors; rigidifying the carbonized preform blank by subjecting it to at least one cycle of CVD; grinding the surface of the preform blank to open pores on its surface; and subjecting the open-pored preform blank to RTM processing with pitch. Also, carbon-carbon composite or carbon-ceramic composite wheel beam key produced by this process, having a density of from 1.5 g/cc to 2.1 g/cc and a maximum internal porosity of 10% or less.

    摘要翻译: 通过以下方式制造复合轮束梁钥匙的方法:完全由碳纤维前体或碳纤维前体和陶瓷材料形成具有所需轮梁钥匙形状的纤维预制坯料,其中预制坯坯的纤维体积分数至少为50 %; 碳化碳纤维前体; 通过使碳化预成型坯坯进行CVD的至少一个循环来硬化; 研磨预制坯坯的表面以在其表面上开孔; 并对开孔预成型件坯料进行间距处理。 此外,通过该方法制造的碳 - 碳复合材料或碳 - 陶瓷复合材料轮束密钥的密度为1.5g / cc至2.1g / cc,最大内部孔隙率为10%以下。

    VPI-RTM-CVD brake disc preform densification
    7.
    发明授权
    VPI-RTM-CVD brake disc preform densification 失效
    VPI-RTM-CVD制动盘预制件致密化

    公开(公告)号:US07700014B2

    公开(公告)日:2010-04-20

    申请号:US11402791

    申请日:2006-04-13

    IPC分类号: C01B31/00

    摘要: Method of manufacturing dense carbon-carbon composite material by: infiltrating a fibrous preform with pitch to form pitch-infiltrated preform; carbonizing the pitch-infiltrated preform; injecting resin or pitch into the preform in a mold; oxygen stabilizing the filled preform and carbonizing and heat-treating the oxygen-stabilized impregnated preform; and subjecting the preform to a single final cycle of chemical vapor deposition. This process reduces densification time as compared to comparable conventional carbon-carbon composite manufacturing procedures.

    摘要翻译: 通过以下步骤制造致密碳 - 碳复合材料的方法:用沥青渗透纤维预制件以形成沥青渗透的预制件; 沥青渗透预制件碳化; 在模具中将树脂或沥青注入预成型件; 氧稳定填充的预制件并碳化和热处理氧稳定的浸渍的预制件; 并对预制件进行化学气相沉积的单个最后循环。 与可比较的常规碳 - 碳复合材料制造方法相比,该方法降低致密化时间。

    Activated carbon to immobilize pitch in constraint fixture during carbonization
    8.
    发明授权
    Activated carbon to immobilize pitch in constraint fixture during carbonization 失效
    活性炭在碳化期间固定约束夹具中的沥青

    公开(公告)号:US07632435B2

    公开(公告)日:2009-12-15

    申请号:US11435734

    申请日:2006-05-18

    IPC分类号: C01B31/00

    摘要: Method of carbonizing pitch-infiltrated fibrous annular preform by: infiltrating the preform with pitch; placing the pitch-infiltrated preform in a constraint fixture having an ejector base plate, an inner wall, an outer wall, and a top press plate; selecting the relative sizes of the preform and the constraint fixture so that a layer of inert friable material may be situated between the preform and walls of the constraint fixture; placing inert friable material (e.g., activated carbon) between the preform and the top, bottom, and walls of the constraint fixture; and subjecting the pitch-infiltrated fibrous preform to carbonization in the constraint fixture. The activated carbon or other inert friable material adsorbs pitch molecules that escape the preform during carbonization, which reduces problems with foaming. The layer of activated carbon or other friable material between the fibrous preform and the constraint fixture also provides an easily crushable region that facilitates removal of the preform from the constraint fixture after carbonization.

    摘要翻译: 沥青渗透纤维环状预成型体通过以下方式浸渗预成型体的方法: 将沥青渗透的预成型件放置在具有顶出板底板,内壁,外壁和顶部压板的约束夹具中; 选择预成型件和约束夹具的相对尺寸,使得惰性脆性材料层可以位于约束夹具的预成型件和壁之间; 将惰性脆性材料(例如,活性炭)放置在预成型件与约束夹具的顶部,底部和壁之间; 并且在沥青渗透的纤维预型体中在约束夹具中进行碳化。 活性炭或其他惰性易碎材料在碳化过程中吸附脱离预成型体的沥青分子,这减少了起泡问题。 在纤维预制件和约束夹具之间的活性炭层或其它易碎材料层还提供了易于压碎的区域,其有助于在碳化之后从约束夹具上移除预型件。

    Resin transfer molding to toughen composite beam keys
    9.
    发明申请
    Resin transfer molding to toughen composite beam keys 失效
    树脂传递成型加强复合梁键

    公开(公告)号:US20090236763A1

    公开(公告)日:2009-09-24

    申请号:US11389022

    申请日:2006-03-27

    IPC分类号: B29C45/02 C01B31/02

    摘要: Method of manufacturing composite wheel beam key by: forming entirely from carbon fiber precursors or from carbon fiber precursors and ceramic materials a fibrous preform blank in a shape of a desired wheel beam key, wherein the fiber volume fraction of the preform blank is at least 50%; carbonizing the carbon fiber precursors; rigidifying the carbonized preform blank by subjecting it to at least one cycle of CVD; grinding the surface of the preform blank to open pores on its surface; and subjecting the open-pored preform blank to RTM processing with pitch. Also, carbon-carbon composite or carbon-ceramic composite wheel beam key produced by this process, having a density of from 1.5 g/cc to 2.1 g/cc and a maximum internal porosity of 10% or less.

    摘要翻译: 通过以下方式制造复合轮束梁钥匙的方法:完全由碳纤维前体或碳纤维前体和陶瓷材料形成所需轮梁钥匙形状的纤维预制坯料,其中预制坯坯的纤维体积分数至少为50 %; 碳化碳纤维前体; 通过使碳化预成型坯坯进行CVD的至少一个循环来硬化; 研磨预制坯坯的表面以在其表面上开孔; 并对开孔预成型件坯料进行间距处理。 此外,通过该方法制造的碳 - 碳复合材料或碳 - 陶瓷复合材料轮束密钥的密度为1.5g / cc至2.1g / cc,最大内部孔隙率为10%以下。

    Titanium carbide as a friction and wear modifier in friction materials
    10.
    发明授权
    Titanium carbide as a friction and wear modifier in friction materials 有权
    碳化钛作为摩擦材料中的摩擦和磨损改性剂

    公开(公告)号:US08858846B2

    公开(公告)日:2014-10-14

    申请号:US12410903

    申请日:2009-03-25

    摘要: Methods of making a carbon-carbon composite preforms, particularly suitable as brake discs in aircraft landing systems, by combining titanium carbide particles ranging in size from 0.01 to 10 microns in diameter, resinous binder, and carbon fibers or carbon fiber precursors in a mold, and subsequently subjecting the combined components to pressure and heat to carbonize the resinous binder by methods, thereby providing the carbon-carbon composite preform having particulate titanium carbide uniformly distributed throughout its mass. Prior to combining the titanium carbide and the binder with the fibers in this process, the particulate titanium carbide may be mixed with liquid binder, the resulting TiC/binder mixture may then solidified, and the resulting solid TiC/binder mixture may be ground into a fine powder for use in the process. Also, compositions for preparing a carbon-carbon composite friction materials, and methods of improving wear and dynamic stability in a carbon-carbon composite brake discs.

    摘要翻译: 通过将尺寸范围为0.01至10微米直径的碳化钛颗粒,树脂粘合剂和模具中的碳纤维或碳纤维前体组合制备碳 - 碳复合预制件,特别适用于飞机着陆系统中的制动盘的方法, 并随后使组合的组分进行加压和加热以通过方法使树脂粘合剂碳化,由此提供碳 - 碳复合预成型体,其中颗粒状碳化钛均匀地分布在其整个质量中。 在该方法中将碳化钛与粘合剂与纤维结合之前,可将颗粒碳化钛与液体粘合剂混合,然后使所得到的TiC /粘合剂混合物固化,并将所得固体TiC /粘合剂混合物研磨成 精细粉末用于该过程。 另外,用于制备碳 - 碳复合材料摩擦材料的组合物,以及改善碳 - 碳复合制动盘中的磨损和动态稳定性的方法。