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:
Nov. 21, 2017
Filed:
Oct. 06, 2008
Curtis A. Martin, Damascus, MD (US);
James A. Zaykoski, Mount Airy, MD (US);
Inna G. Talmy, North Potomac, MD (US);
Curtis A. Martin, Damascus, MD (US);
James A. Zaykoski, Mount Airy, MD (US);
Inna G. Talmy, North Potomac, MD (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
Inventive manufacture of CrB—AlOcomposites is based on pressureless sintering. According to typical inventive practice, CrBpowder and AlOpowder are mixed together in selected volumetric proportions so that the volume of the CrBdoes not exceed 50% of the overall volume of the CrB—AlOmixture. The CrB—AlOmixture is shaped into a green body. The green body is pressureless sintered in a non-oxidizing atmosphere at a firing temperature in the approximate range between 1600° C. and 2050° C. The present invention succeeds in preparing, via pressureless sintering, a proportionality-associated range of compositions in the CrB—AlOsystem, which is a potentially 'advanced' ceramic system. A typical inventively fabricated CrB—AlOcomposite is inventively configured in a complex shape, and has 'advanced' material (e.g., mechanical) properties that are favorable for a contemplated application. Inventive manufacture of ceramic-ceramic composites is thus dually attributed, and uncommonly so, with complex shape-ability and advanced capability.