Abstract

Publisher Summary This chapter focuses on the oxidation of metals, which is considered only occasionally as a method for making ceramic bodies. The directed metal oxidation process represents an alternative ceramic composite technology that overcomes many of the limitations. The directed metal oxidation process is based on the reaction of a molten metal with an oxidizing gas. The nature of matrix growth has only been described for the Al2O3–Al system, although some of the features of the process may also be characteristic for other ceramic–metal systems. All textile-type techniques developed for the manufacturing of fiber-reinforced polymers represent suitable methods for preparing fibrous filler configurations. The properties of composites formed by the directed oxidation of molten metals depend strongly on the filler characteristics and, in some cases, on the volume fraction of the metal phase left in the channel system of the matrix. As the process involves low-cost starting materials, low processing temperatures, and no densification shrinkage, it appears to be highly competitive in comparison with other conventional ceramic technologies.

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