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Bulk low-cost interface-defined laminated materials and their method of fabrication
Bulk low-cost interface-defined laminated materials and their method of fabrication
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机译:低成本廉价的界面定义层压材料及其制造方法
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摘要
This invention describes a novel type of materials named by the inventors as Interface-Defined nano-Laminates (IDnL), and a new method for fabricating these materials from ceramic, metallic, and other powders. The laminate layer thickness in IDnL is smaller than that of ordinary laminates, but greater than that of superlattices. IDnL 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. In contrast to superlattice materials, IDnL can be made thermally stable, due to the wide selection of interface-defining materials, which allows judicial use of equilibrium phase diagrams, and the “entropic stabilization” approach discovered by the authors; and in addition IDnL can be manufactured inexpensively in bulk, industrial quantities and large sizes by the techniques revealed in this invention. The degree of interface coherency in an IDnLs can be varied to optimize material properties.
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