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    Preparation of silicon carbide whiskers
    174.
    发明公开
    Preparation of silicon carbide whiskers 失效
    Herstellung von Siliciumcarbid-Whiskern。

    公开(公告)号：EP0468377A1

    公开(公告)日：1992-01-29

    申请号：EP91112105.1

    申请日：1991-07-19

    Applicant: LANXIDE TECHNOLOGY COMPANY, LP

    Inventor： Jensen, James Allen ,  Rosenthal, Allan Bruce

    IPC: C30B25/00 ,  C30B29/36

    CPC classification number: C30B29/36 ,  C30B25/005

    Abstract: Silicon carbide single crystals are prepared by (1) reacting silica gel, silicic acid or silicon dioxide with an inorganic base and a multifunctional alcohol or a multifunctional phenol to produce a carbon-containing chemically activated silicon compound, (2) mixing the activated silicon compound with carbon black or graphite and (3) heating the mixture to 1300° to 1700°C under a non-oxidizing atmosphere.

    Abstract translation: 通过（1）使硅胶，硅酸或二氧化硅与无机碱和多官能醇或多官能苯酚反应以制备含碳化学活化的硅化合物，制备碳化硅单晶，（2）将活化的硅化合物 用碳黑或石墨和（3）在非氧化气氛下将混合物加热至1300至1700℃。

    A method of forming macrocomposite bodies by self-generated vacuum techniques, and products produced therefrom
    179.
    发明公开
    A method of forming macrocomposite bodies by self-generated vacuum techniques, and products produced therefrom 失效
    一种用于通过自生真空技术的装置和随后制造的产品生产宏观复合体的过程。

    公开(公告)号：EP0409764A2

    公开(公告)日：1991-01-23

    申请号：EP90630129.6

    申请日：1990-07-16

    Applicant: LANXIDE TECHNOLOGY COMPANY, LP

    Inventor： Kantner, Robert Campbell ,  Dwivedi, Ratnesh Kumar

    IPC: C04B35/65 ,  C22C1/09 ,  C22C29/12 ,  C04B41/51

    CPC classification number: C04B41/009 ,  C04B35/652 ,  C04B35/80 ,  C04B41/51 ,  C04B41/88 ,  C04B2111/00931 ,  C22C1/1036 ,  C22C2001/1063 ,  C04B41/4519 ,  C04B41/4523 ,  C04B41/4572 ,  C04B41/5093 ,  C04B35/00 ,  C04B35/65

    Abstract: The present invention relates to a novel process for forming macrocomposite bodies. Particularly, a suitable matrix metal (33), typi­cally in a molten state, is in contact with a suitable mass of filler material or preform (31) located adjacent to, or in contact with, at least one second material in the presence of a suitable reactive atmosphere in an impermeable container (32), at least at some point during the process, which permits a reaction to occur between the re­active atmosphere and the molten matrix metal (33) and/or mass of filler material or preform (31) and/or impermeable container (32), thereby causing molten matrix metal (33) to infiltrate the mass of filler mate­rial or preform (31) due to, at least in part, the creation of a self-­generated vacuum. Such self-generated vacuum infiltration occurs with­out the application of any external pressure or vacuum. The molten matrix metal (33) infiltrates the mass of filler material or preform (31) to such an extent that the molten matrix metal (33) contacts at least a portion of the at least one second material. Upon cooling the matrix metal (33) to a temperature below the melting point of the ma­trix metal, a macrocomposite body is formed comprising a metal matrix composite body bonded to at least a portion of the at least one se­cond material.

    Abstract translation: 本发明涉及一种用于形成宏复合体的新方法。 特别地，合适的基质金属（33）典型地在熔融状态下，与位于邻近填料或预型（31）的合适的质量接触，或在的存在下与至少一种第二种材料接触 在一个不渗透的容器（32），合适的反应性气氛中，至少在过程期间的某一时刻，其允许反应在反应性气氛和熔融基体金属（33）和/或填料或预型的质量之间发生（31） 和/或不透容器（32），从而使熔融基体金属（33）渗透到填料或预型（31）的质量由于，至少部分地建立一个自生真空的。 搜索自生真空渗透的发生，无需任何外部压力或真空的应用。 熔融基质金属（33）渗入填料或预型（31）的质量，以在搜索范围所做的熔融基质金属（33）的至少接触所述至少一个第二材料的一部分。 当基质金属（33）在冷却至基质金属的熔点以下的温度下，一个宏复合体形成包含结合到至少一种第二种材料的至少一部分上的金属基质复合体。

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