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11 条记录 (耗时 0.018 秒)

    Method of making a structure
    2.
    发明授权
    Method of making a structure 失效
    制作结构的方法

    公开(公告)号：US4776995A

    公开(公告)日：1988-10-11

    申请号：US899022

    申请日：1986-08-22

    申请人： Daniel C. Nelson ,  Roger T. Pepper

    发明人： Daniel C. Nelson ,  Roger T. Pepper

    IPC分类号： C04B35/83 ,  D01F9/14 ,  D01F9/22 ,  D01F9/12

    CPC分类号： C04B35/83 ,  D01F9/22

    摘要： A carbonizable body is formed by infusing a plurality of preoxidized, preferably stabilized by known processing to have about 9 to 14 weight percent oxygen, polyacrylonitrile fibers in a polar liquid plasticizer, preferably water, capable of extracting a tarry leachate from the fibers. The infusion of the fibers in the plasticizer is continued for a sufficient time for a substantial amount of leachate to form on the surface of the fibers, and are then consolidated or diffusion-bonded to one another or other fibers, as by orienting the treated fibers in a mold and subjecting them to isostatic pressing at relatively low temperatures and pressure. Further processing of the consolidated fibers with appropriate heat treatment in an inert atmosphere will produce a carbonized bulk product with higher values of Young's modulus for the carbonized material than have been previously achieved at such carbonization temperatures. This carbonaceous product can be truly graphitized by subsequent heat treatment to obtain material with a modulus of at least 40.times.10.sup.6 psi, and a tensile strength of at least 20.times.10.sup.3 psi.

    摘要翻译： 可通过将多种预氧化，优选通过已知方法进行稳定化而形成可碳化体，以在极性液体增塑剂（优选水）中具有约9至14重量％的氧，聚丙烯腈纤维，其能够从纤维中提取焦油沥出液。 将增塑剂中的纤维输注持续足够的时间，以在纤维的表面上形成大量的浸出液，然后通过将处理过的纤维取向来固化或扩散粘合到彼此或其它纤维上 并在相对较低的温度和压力下进行等静压。 在惰性气氛中进行适当热处理的固结纤维的进一步加工将产生碳化散体产品，碳化材料的杨氏模量值高于之前在这样的碳化温度下实现的杨氏模量。 该碳质产品可以通过随后的热处理而被真正石墨化，以获得具有至少40×10 6 psi的模量和至少20×10 3 psi的拉伸强度的材料。

    Acoustic filter
    3.
    发明授权
    Acoustic filter 失效
    声学滤波器

    公开(公告)号：US4215764A

    公开(公告)日：1980-08-05

    申请号：US701562

    申请日：1976-07-01

    申请人： Roy D. Marangoni ,  Horst Gigerenzer ,  Roger T. Pepper

    发明人： Roy D. Marangoni ,  Horst Gigerenzer ,  Roger T. Pepper

    IPC分类号： E04B1/84 ,  G10K11/16 ,  E04B1/62

    CPC分类号： G10K11/165 ,  E04B1/84

    摘要： An acoustical insulating material comprises a fiber reinforced lead composite sheet or panel. In a preferred embodiment of the invention the fibers are substantially axially parallel aligned with one another. The frequency absorption and transmission characteristics of the material may be varied by mechanically stressing the material, e.g. as by placing the material under tension in the direction of fiber orientation.

    摘要翻译： 绝缘材料包括纤维增强的铅复合片或面板。 在本发明的优选实施例中，纤维基本上轴向平行地彼此对准。 材料的频率吸收和传输特性可以通过机械应力材料来改变，例如， 通过将材料张紧在纤维取向的方向。

    High carbon composite
    5.
    发明授权
    High carbon composite 失效
    高碳复合材料

    公开(公告)号：US4777093A

    公开(公告)日：1988-10-11

    申请号：US36084

    申请日：1987-04-09

    申请人： Daniel C. Nelson ,  Roger T. Pepper

    发明人： Daniel C. Nelson ,  Roger T. Pepper

    IPC分类号： C04B35/83 ,  D01F9/22 ,  B32B9/00

    CPC分类号： C04B35/83 ,  D01F9/22 ,  Y10S428/902 ,  Y10T428/30

    摘要： A carbonizable body is formed by infusing a plurality of preoxidized (preferably stabilized by known processing to have about 9 to 14 weight percent oxygen) polyacrylonitrile fibers in a polar liquid plasticizer, preferably water, capable of extracting a tarry leachate from the fibers. The infusion of the fibers in the plasticizer is continued for a sufficient time for a substantial amount of leachate to form on the surface of the fibers, and are then consolidated or diffusion-bonded to one another or other fibers, as by orienting the treated fibers in a mold and subjecting them to isostatic pressing at relatively low temperatures and pressure. Further processing of the consolidated fibers with appropriate heat treatment in an inert atmosphere will produce a carbonized bulk product with higher values of Young's modulus for the carbonized material than have been previously achieved at such carbonization temperatures. This carbonaceous product can be truly graphitized by subsequent heat treatment to obtain material with a modulus of at least 40.times.10.sup.6 psi, and a tensile strength of at least 20.times.10.sup.3 psi.

    摘要翻译： 通过在能够从纤维中提取焦油沥出液的极性液体增塑剂（优选水）中注入多种预氧化（优选通过已知方法稳定化以具有约9至14重量％的氧）聚丙烯腈纤维形成可碳化体。 将增塑剂中的纤维输注持续足够的时间，以在纤维的表面上形成大量的浸出液，然后通过将处理过的纤维取向来固化或扩散粘合到彼此或其它纤维上 并在相对较低的温度和压力下进行等静压。 在惰性气氛中进行适当热处理的固结纤维的进一步加工将产生碳化散体产品，碳化材料的杨氏模量值高于之前在这样的碳化温度下实现的杨氏模量。 该碳质产品可以通过随后的热处理而被真正石墨化，以获得具有至少40×10 6 psi的模量和至少20×10 3 psi的拉伸强度的材料。

    Graphite fiber/metal composites
    8.
    发明授权
    Graphite fiber/metal composites 失效
    石墨纤维/金属复合材料

    公开(公告)号：US4072516A

    公开(公告)日：1978-02-07

    申请号：US613333

    申请日：1975-09-15

    申请人： Roger T. Pepper ,  Thomas A. Zack

    发明人： Roger T. Pepper ,  Thomas A. Zack

    IPC分类号： C22C47/08 ,  C01B31/00 ,  C04B35/83 ,  C22C47/00 ,  C22C47/02 ,  C22C47/04 ,  C22C49/14 ,  D06M11/00 ,  D06M11/77 ,  D06M11/79 ,  D06M11/83 ,  D06M23/08 ,  D06M101/00 ,  D06M101/40 ,  H01B1/04 ,  H01C1/04

    CPC分类号： C22C49/14

    摘要： A novel graphite fiber/metal composite material in which the graphite fibers have an adherent coating of silicon oxide and silicon carbide. The coating protects the graphite surface from attack by carbide forming matrix metals such as aluminum, titanium, magnesium and nickel. In a preferred embodiment of the invention the coating is formed by an intermediate temperature vapor deposition technique involving the reduction of silicon tetrachloride in the presence of hydrogen and an oxygen containing gas.

    摘要翻译： 一种新型石墨纤维/金属复合材料，其中石墨纤维具有氧化硅和碳化硅的粘附涂层。 涂层可保护石墨表面免受碳化物形成基体金属如铝，钛，镁和镍的侵蚀。 在本发明的优选实施方案中，通过中间温度气相沉积技术形成涂层，其涉及在氢气和含氧气体存在下还原四氯化硅。

    Monocrystalline ceramic fibers and method of preparing same
    9.
    发明授权
    Monocrystalline ceramic fibers and method of preparing same 失效
    单晶陶瓷纤维及其制备方法

    公开(公告)号：US5200370A

    公开(公告)日：1993-04-06

    申请号：US615025

    申请日：1990-11-16

    申请人： James R. Lennox ,  Roger T. Pepper ,  Paul V. Chayka

    发明人： James R. Lennox ,  Roger T. Pepper ,  Paul V. Chayka

    IPC分类号： C04B35/622

    CPC分类号： C04B35/62227 ,  Y10S505/704 ,  Y10S505/74

    摘要： Monocrystalline ceramic fibers are disclosed together with a process for preparing such fibers. Polycrystalline ceramic fibers in a tow are coated with a coating that is chemically substantially non-reactive with the ceramic (e.g. alumina fibers coated with molybdenum), and the coated fibers are drawn through a heating zone maintained at a temperature high enough to melt the fibers without melting the coating. The coated fibers are withdrawn from the heating zone and cooled rapidly enough to form a substantially monocrystalline ceramic. The protective coating may thereafter be removed to leave a tow of substantially single-crystal ceramic fibers. Monocrystalline ceramic fibers about 8-20 microns in diameter are prepared by the disclosed process.

    摘要翻译： 公开了单晶陶瓷纤维以及制备这种纤维的方法。 丝束中的多晶陶瓷纤维涂覆有与陶瓷化学上基本上不反应的涂层（例如涂覆有钼的氧化铝纤维），并且涂覆的纤维被拉伸通过保持在足够高的温度以熔化纤维的加热区域 不熔化涂层。 将涂覆的纤维从加热区中取出并迅速冷却，形成基本上单晶陶瓷。 此后可以除去保护涂层以留下基本上单晶陶瓷纤维的丝束。 通过公开的方法制备直径约8-20微米的单晶陶瓷纤维。

    Method of making a structure from carbonaceous fibers
    10.
    发明授权
    Method of making a structure from carbonaceous fibers 失效
    从碳质纤维制造结构的方法

    公开(公告)号：US4776994A

    公开(公告)日：1988-10-11

    申请号：US899021

    申请日：1986-08-22

    申请人： Daniel C. Nelson ,  Roger T. Pepper

    发明人： Daniel C. Nelson ,  Roger T. Pepper

    IPC分类号： C08J5/04 ,  B29B11/16 ,  C04B35/83 ,  C04B38/00 ,  D01F9/14 ,  D01F9/145 ,  D01F9/12

    CPC分类号： D01F9/145 ,  C04B35/83

    摘要： A carbonizable body is formed by infusing a plurality of preoxidized, preferably stabilized by known processing to have about 17 to 30 weight percent oxygen, fibers prepared from pitch, in a non-polar liquid plasticizer, typically quinoline, capable of extracting a tarry leachate from the fibers. The infusion of the fibers in the plasticizer is continued for a sufficient time for a substantial amount of leachate to form on the surface of the fibers. The treated fibers are then consolidated or diffusion-bonded to one another or other fibers, as by orienting the treated fibers in a mold and subjecting them to isostatic pressing at relatively low temperatures and pressure. Further processing of the consolidated fibers with appropriate heat treatment in an inert atmosphere will produce a carbonized bulk product with higher values of Young's modulus for the carbonized material than have been previously achieved at such carbonization temperatures. This carbonaceous product can be truly graphitized by subsequent heat treatment to obtain material with a modulus of at least 40.times.10.sup.6 psi, and a tensile strength of at least 20.times.10.sup.3 psi.

    摘要翻译： 可通过注入多种预氧化，优选通过已知方法稳定化而形成的可碳化体通过在非极性液体增塑剂（通常为喹啉）中具有约17至30重量％的氧，由间距制备的纤维形成，其能够提取沥青渗滤液 纤维。 将增塑剂中的纤维的输注持续足够的时间，以在纤维的表面上形成大量的浸出液。 然后将经处理的纤维固化或扩散粘合到彼此或其它纤维上，如将经处理的纤维定向在模具中并在相对低的温度和压力下进行等静压。 在惰性气氛中进行适当热处理的固结纤维的进一步加工将产生碳化散体产品，碳化材料的杨氏模量值高于之前在这样的碳化温度下实现的杨氏模量。 该碳质产品可以通过随后的热处理而被真正石墨化，以获得具有至少40×10 6 psi的模量和至少20×10 3 psi的拉伸强度的材料。