公开(公告)号：US5434113A

公开(公告)日：1995-07-18

申请号：US68456

申请日：1993-05-28

申请人： Jack A. Kuszyk ,  Christopher R. Kennedy ,  Ralph R. Ballario, Jr. ,  Craig B. Shumaker ,  Eric J. Van Voorhees

发明人： Jack A. Kuszyk ,  Christopher R. Kennedy ,  Ralph R. Ballario, Jr. ,  Craig B. Shumaker ,  Eric J. Van Voorhees

IPC分类号： B22D41/32 ,  C04B35/65

CPC分类号： B22D41/32 ,  C04B35/652 ,  Y10T29/49988

摘要： There is provided a method for producing a self-supporting ceramic composite comprising (1) a ceramic matrix obtained by oxidation of an aluminum zinc alloy to form a polycrystalline oxidation reaction product of the metal with an oxidant, and (2) one or more fillers embedded by the matrix. The metal alloy and permeable mass of filler having at least one defined surface boundary are oriented relative to each other so that formation of the oxidation reaction product will occur into said mass of filler and in a direction towards said defined surface boundary. On heating the metal to a first temperature above its melting point but below the melting point of said oxidation reaction product to form a body of molten parent metal, the molten metal reacts with said oxidant to form said oxidation reaction product which infiltrates said mass of filler to said defined surface boundary. The resulting infiltrated mass is heated to a second temperature in order to remove or oxidize at least a substantial portion of one or more residual non-oxidized metallic constituents from or in said infiltrated mass without substantial formation of said oxidation reaction product beyond said defined surface boundary, thereby producing a self-supporting ceramic composite.

摘要翻译： 提供一种自支撑陶瓷复合体的制造方法，其特征在于，包括：（1）通过氧化铝锌合金得到的陶瓷基体，形成金属与氧化剂的多晶氧化反应产物，（2）一种或多种填料 由矩阵嵌入。 具有至少一个限定表面边界的金属合金和可渗透质量的填料相对于彼此定向，使得氧化反应产物的形成将发生在所述填料块中并朝向所述限定的表面边界的方向。 在将金属加热到高于其熔点但低于所述氧化反应产物的熔点的第一温度以形成熔融母体金属体时，熔融金属与所述氧化剂反应形成所述氧化反应产物，其渗透所述填料填料 到所述限定的表面边界。 将所得的渗透物质加热至第二温度，以从所述渗透物质中或所述渗透物质中除去或氧化至少大部分的一种或多种残留的非氧化金属成分，而不会在所述限定的表面边界之上基本形成所述氧化反应产物 ，从而制备自支撑陶瓷复合材料。