SOLID LUBRICATING, HARD AND FRACTURE RESISTANT COMPOSITES FOR SURFACE ENGINEERING APPLICATIONS
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United States of America Patent
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Issued Date -
Sep 26, 2013
app pub date -
Feb 18, 2013
filing date -
Mar 20, 2012
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Abstract
A method and composition for producing a monolithic hybrid composite consisting of a composite matrix, a reinforcement phase, and a solid/self-lubrication phase. The composition may comprise a graphite (“C”) phase and a titanium carbide (“TiC”) phase in a nickel (“Ni”) matrix. The process may include the step of blending pure Ni and pure titanium (“Ti”) powders with Ni-coated graphite powder using Laser Engineered Net Shaping (“LENS”). The novel composite, when achieved with an optimum chemical and structural phase ratio, exhibits a balance of high hardness, fracture toughness, and low friction/wear,
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