Bulk low cost interface-defined laminated metallic and ceramic energy barrier materials and their method of fabrication

摘要

This invention describes a unique of class of nano-scale materials for use as protective coatings or barriers against heat as well as material loss due to processes such as corrosion, ablation, erosion, or oxidation. These nano-scale laminated materials are also useful as free-standing components and as substrates, especially for high temperature oxidation-resistant applications. The novel materials of this invention are known as interface-defined nano-laminates (IDnLs), and are fabricated by a new method from ceramic, metallic, and other powders. The laminate layer thickness in an IDnL is smaller than that of ordinary laminates but greater than that of superlattices. Interface-defined nano-laminates are fundamentally different from ordinary laminates in that their properties are defined by interfaces, and not by the properties of the bulk materials comprising individual layers.