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    • 9. 发明授权
    • Method of making metal matrix composites
    • 制备金属基复合材料的方法
    • US4998578A
    • 1991-03-12
    • US380977
    • 1989-07-17
    • Ratnesh K. DwivediVirgil Irick, Jr.
    • Ratnesh K. DwivediVirgil Irick, Jr.
    • C04B35/111C04B35/65C22C1/10C22C32/00
    • C22C1/1036C04B35/111C04B35/652C22C32/0063C22C2001/1063
    • An aluminum metal matrix composite comprises an aluminum metal matrix embedding a second filler, such as a ceramic second filler, and is formed by contacting, for example, a molten aluminum metal with a permeable mass of second filler within a ceramic impervious mold formed by growing a polycrystalline oxidation reaction product into a first filler. By hermetically sealing the second filler within the mold with a body of molten aluminum metal, the latter spontaneously infiltrates the mass of second filler at moderate temperatures, e.g. about 900.degree. C., without need of any other infiltration expedients. The molten mass containing the infiltrated ceramic filler is solidified to provide the metal matrix composite which may be recovered from the mold. Optionally, the solidification is carried out under bonding conditions including maintaining the solidifying material in direct contact with the ceramic mold, to provide the metal matrix composite joined to the mold, or a part thereof, as a structural component.
    • 铝金属基质复合材料包括嵌入第二填料(例如陶瓷第二填料)的铝金属基体,并且通过例如熔融铝金属与可渗透的第二填料物质接触而形成,所述陶瓷不可渗透模具通过生长形成 将多晶氧化反应产物转化成第一填料。 通过用熔融铝金属体将模具内的第二填料气密密封,后者在中等温度下自发渗透第二填料块, 约900℃,无需任何其他渗透方式。 包含渗透的陶瓷填料的熔融物料被固化,以提供可以从模具回收的金属基质复合材料。 任选地,固化在包括保持固化材料与陶瓷模具直接接触的粘结条件下进行,以提供连接到模具或其一部分作为结构部件的金属基复合材料。