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METHOD OF FORMING ECOCERAMIC-BASED SILICON-CARBIDE TOOLING FOR COMPOSITES AND METHOD FOR FORMING COMPOSITES
METHOD OF FORMING ECOCERAMIC-BASED SILICON-CARBIDE TOOLING FOR COMPOSITES AND METHOD FOR FORMING COMPOSITES
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机译:复合材料的基于陶瓷的碳化硅模具的形成方法及复合材料的形成方法
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摘要
A method is provided for forming items from ecoceramic-based silicon-carbide. A wood preform is machined to a general shape having over- or undersized dimensions. The preform is pyrolyzed to transform the wood of the preform to a porous, carbonaceous material that retains the general shape of the preform. The preform is then machined to final, net-shape dimensions and immersed in liquid silicon or silicon alloy that penetrates and infuses the preform. The infused preform is held at a temperature sufficient to cause the transformation of the material in the preform to silicon carbide, completing formation of the item. Also provided is a method of forming ecoceramic-based tooling and composite components using the tooling.
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