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    • 27. 发明申请
    • PREPARATION OF A METAL MATRIX COMPOSITE BODY BY A SPONTANEOUS INFILTRATION PROCESS
    • 自生渗透法制备金属基复合材料体
    • WO9932680A2
    • 1999-07-01
    • PCT/US9826950
    • 1998-12-18
    • LANXIDE TECHNOLOGY CO LTDAGHAJANIAN MICHAEL KWIENER ROBERT
    • AGHAJANIAN MICHAEL KWIENER ROBERT
    • C04B41/51C04B41/52C04B41/88C04B41/89C22C1/10
    • C04B41/009C04B41/5155C04B41/52C04B41/88C04B41/89C22C1/1036C22C2001/1021C22C2001/1063C04B41/4523C04B41/4535C04B41/5031C04B41/515C04B35/10C04B35/443C04B35/565
    • Improvements in process metal matrix composite materials by infiltration are disclosed. Specifically, the effective contact area between a permeable mass or preform and a molten matrix metal (which is to infiltrate the permeable mass or preform) can be enlarged by coating one or more exterior surfaces of the permeable mass or preform to a desired extent with an infiltration enhancer or infiltration enhancer precursor. This technique is particularly useful for the infiltration of complex or irregularly shaped preforms. Further, it is frequently advantageous that the permeable mass or preform is not to be in direct contact with the body of molten matrix metal. The above concept can be extended to achieve this objective. Specifically, as long as there exists a pathway (33) comprising infiltration enhancer or infiltration enhancer precursor between the molten matrix metal (13) and the permeable mass or preform (11) to be infiltrated, infiltration of the permeable mass or preform can be achieved. More particularly, the molten matrix metal first infiltrates the pathway, following the pathway toward and into the permeable mass or preform.
    • 公开了通过渗透改进工艺金属基体复合材料。 具体而言,可渗透物质或预成型件与熔融基质金属(其将渗透可渗透物质或预成型件)之间的有效接触面积可以通过将可渗透物质或预成型件的一个或多个外表面用 渗透增强剂或渗透增强剂前体。 该技术对于复杂或不规则形状的预成型件的渗透特别有用。 此外,通常有利的是,可渗透物质或预成型件不直接与熔融基质金属体接触。 上述概念可以扩展到实现这个目标。 具体而言,只要在熔融基质金属(13)与待渗透的可渗透物质或预成型件(11)之间存在包含渗透增强剂或渗透增强剂前体的路径(33),则可实现可渗透物质或预成型件的渗透 。 更具体地说,熔融基体金属首先渗入路径,沿着朝向并进入可渗透物质或预制件的路径。