Metal nanoparticles as lubricant additives
AssigneesUT-Battelle, LLC, University of Tennessee Research Foundation
InventorsChanaka Kapila Kumara Ihala Gamaralalage, Jun Qu
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Abstract
A lubricant composition comprising: (i) silver or gold nanoparticles, each of which is encapsulated by a layer of alkylthiol or alkylamine molecules; (ii) palladium or platinum nanoparticles, each of which is encapsulated by a layer of alkylthiol or alkylamine molecules; and (iii) a fluid in which components (i) and (ii) are present. Further described are methods for applying the lubricant composition onto a mechanical device for which lubrication is beneficial, with resulting improvement in friction and wear reduction and/or corrosion inhibition.
Claims28
A lubricant composition comprising:
- (i) silver or gold nanoparticles, each of which is encapsulated by a layer of alkylthiol or alkylamine molecules;
- (ii) palladium or platinum nanoparticles, each of which is encapsulated by a layer of alkylthiol or alkylamine molecules;
- and
- (iii) a fluid in which components (i) and (ii) are present;
- wherein said alkylthiol has the formula HS—(CH2)nCH3 and said alkylamine has the formula H2N—(CH2)nCH3, wherein n is at least 3 and up to 22.
A method for reducing friction and wear in metal-containing mechanical components designed for movable contacting interaction with each other, the method comprising coating a lubricant composition on the mechanical components to result in reduced friction and wear when said mechanical components are in movable contacting operation, wherein said lubricant composition comprises:
- (i) silver or gold nanoparticles, each of which is encapsulated by a layer of alkylthiol or alkylamine molecules;
- (ii) palladium or platinum nanoparticles, each of which is encapsulated by a layer of alkylthiol or alkylamine molecules;
- and
- (iii) a fluid in which components (i) and (ii) are present;
- wherein said alkylthiol has the formula HS—(CH2)nCH3 and said alkylamine has the formula H2N—(CH2)nCH3, wherein n is at least 3 and up to 22.
Dependencies are inferred from the claim text.