The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2013
Filed:
Dec. 29, 2010
Alexander Pechenik, Getzville, NY (US);
Wesley P. Hoffman, Palmdale, CA (US);
Alexander Pechenik, Getzville, NY (US);
Wesley P. Hoffman, Palmdale, CA (US);
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Abstract
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.