Wear-Resistant, High Durability Industrial Ceramic Cutting Edges and Tools made from Sintered Polycrystalline Composites Based on Aluminum Nitride
AssigneeSurmet Corporation
InventorSuri A. Sastri
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Abstract
The invention pertains to hardware such as cutting tools with improved performance, wear-resistance and durability made from sintered polycrystalline aluminum nitride based ceramic composites containing secondary or dispersed phases for enhanced toughness. The articles of this invention provide good hardness, toughness, chemical inertness, thermal stability, lubricity, wear-resistance, and the ability to operate in the presence of liquid coolants, yielding good surface finish and long lifetime. The cutting tools of this invention are applicable to a wide range of industrial, biomedical, commercial and other applications.
Claims13
A cutting edge or tool or wear-resistant device composed of a sintered composite consisting of an aluminum nitride based ceramic matrix reinforced with specially selected secondary phases with high aspect ratio morphologies, such as whiskers, platelets, needles, fibers and nanofibrous architecture.
Dependencies are inferred from the claim text.