Hollow fullerene-like nanoparticles as solid lubricants in composite metal matrices
AssigneesYeda Research and Development Co. Ltd., Holon Academic Institute of Technology
InventorsReshef Tenne, Lev Rapoport, Mark Lvovsky, Yishay Feldman, Volf Leshchinsky
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Abstract
The present invention provides a new composite material comprising a porous matrix made of metal, metal alloy or semiconducting material and hollow fullerene-like nanoparticles of a metal chalcogenide compound or mixture of such compounds. The composite material is characterized by having a porosity between about 10% and about 40%. The amount of the hallow nanoparticles in the composite material is 1-20 wt. %.
Claims17
A composite material comprising a porous matrix made of metal, metal alloy or semiconducting material and hollow fullerene-like nanoparticles of a metal chalcogenide compound or mixture of such compounds, said composite material having a porosity between about 10% and about 40%.
A composite according to any one of the preceding claims wherein the amount of the hollow nanoparticles in said matrix is between about 1% and about 20 wt. %.
A composite according to any one of the preceding claims for use in reducing friction coefficient and wear rates and increasing the load bearing capacity of articles manufactured from such composite.
A method of reducing the friction coefficient, the wear rate and of increasing the load bearing capacity of a loaded porous matrix selected from metal, metal alloy or semiconducting material, the method comprising:
- providing a porous matrix from which the piece is produced and adding to said matrix between about 1% and about 20% of hollow nanoparticles of a metal chalcogenide.
Dependencies are inferred from the claim text.