Textured surfaces to enhance nano-lubrication
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05D-003/00
B32B-003/10
B32B-033/00
F16C-033/02
C10M-171/00
B82Y-030/00
출원번호
US-0917321
(2013-06-13)
등록번호
US-8921286
(2014-12-30)
발명자
/ 주소
Malshe, Ajay P.
출원인 / 주소
Malshe, Ajay P.
대리인 / 주소
Akerman LLP
인용정보
피인용 횟수 :
1인용 특허 :
134
초록▼
Embodiments of the present invention may provide textured surfaces to be lubricated, the texturing to enhance the effectiveness of the intended nano-lubrication. The texturing may make asperities and depressions in the surface to be lubricated. This texturing may be executed, for example, by chemica
Embodiments of the present invention may provide textured surfaces to be lubricated, the texturing to enhance the effectiveness of the intended nano-lubrication. The texturing may make asperities and depressions in the surface to be lubricated. This texturing may be executed, for example, by chemical etching, laser etching, or other techniques. This texturing may create locations in the lubricated surface to hold or anchor the intended nano-lubricants, to facilitate the creation of a tribo-film on the surface when the lubricated surface is used under pressure, and resulting in delivery of multiple chemistries from the nano-lubricant.
대표청구항▼
1. A lubricated surface comprising: a surface with textured features, wherein the textured features are adapted to enhance the effectiveness of a nano-particle lubricant, anda nano-particle lubricant in contact with the textured features of the textured surface in a position to lubricate the surface
1. A lubricated surface comprising: a surface with textured features, wherein the textured features are adapted to enhance the effectiveness of a nano-particle lubricant, anda nano-particle lubricant in contact with the textured features of the textured surface in a position to lubricate the surface, wherein the nano-particle lubricant comprises a suspension, dispersion, or emulsion of nano-particles in a base material. 2. The lubricated surface of claim 1, wherein the nano-particles have an average particle dimension of less than or equal to about 100 nm. 3. The lubricated surface of claim 1, wherein the nano-particles comprise solid nano-particles. 4. The lubricated surface of claim 3, wherein the solid nano-particles comprise at least one material selected from the group consisting of molybdenum disulphide, tungsten disulphide, graphite, intercalated graphite, polytetrafluoroethylene, boron nitride, hexagonal boron nitride, soft metals, silver, lead, nickel, copper, cerium fluoride, zinc oxide, silver sulfate, cadmium iodide, lead iodide, barium fluoride, tin sulfide, zinc phosphate, zinc sulfide, mica, boron nitrate, borax, fluorinated carbon, zinc phosphide, boron, and combinations of any thereof. 5. The lubricated surface of claim 1, wherein the nano-particles comprise layered nano-particles. 6. The lubricated surface of claim 1, wherein the nano-particles comprise at least one type of layered nano-particles selected from the group consisting of molybdenum disulfide nano-particles, tungsten disulfide nano-particles, graphite nano-particles, boron nitride nano-particles, and combinations of any thereof. 7. The lubricated surface of claim 1, wherein the nano-particles comprise at least one layered material comprising a chalcogenide. 8. The lubricated surface of claim 1, wherein nano-particles comprise molybdenum disulfide nano-particles. 9. The lubricated surface of claim 1, wherein the nano-particles comprise nano-particles having an open architecture. 10. The lubricated surface of claim 1, wherein the nano-particles comprise an organic medium intercalated in the nano-particles. 11. The lubricated surface of claim 10, wherein the organic medium comprises at least one material selected from the group consisting of oil mediums, grease mediums, alcohol mediums, composite oil, canola oil, vegetable oil, soybean oil, corn oil, ethyl and methyl esters of rapeseed oil, distilled monoglycerides, monoglycerides, diglycerides, acetic acid esters of monoglycerides, organic acid esters of monoglycerides, sorbitan, sorbitan esters of fatty acids, propylene glycol esters of fatty acids, polyglycerol esters of fatty acids, hydrocarbon oils, n-hexadecane, phospholipids, and combinations of any thereof. 12. The lubricated surface of claim 10, wherein the organic medium comprises an oil medium selected from the group consisting of composite oil, canola oil, vegetable oil, soybean oil, corn oil, hydrocarbon oil, and combinations of any thereof. 13. The lubricated surface of claim 10, wherein the organic medium comprises a vegetable oil. 14. The lubricated surface of claim 10, wherein the organic medium comprises a phospholipid. 15. The lubricated surface of claim 1, wherein the nano-particles comprise nano-particles having an open architecture and an organic medium intercalated in the nano-particles. 16. The lubricated surface of claim 1, wherein the nano-particles are intercalated and encapsulated with an organic medium. 17. The lubricated surface of claim 1, wherein the nano-particles comprise a layered nano-particle macro-composition. 18. The lubricated surface of claim 1, wherein the nano-particles comprise a bonded plurality of layered nano-particle macro-compositions. 19. The lubricated surface of claim 1, wherein the nano-particles comprise a nano-particle inner nucleus, an intermediate layer around the nucleus, and an outer layer intercalated with the nucleus or encapsulating the nucleus and the intermediate layer. 20. The lubricated surface of claim 19, wherein the nanoparticle inner nucleus comprises at least one of molybdenum disulfide, tungsten disulfide, graphite, or boron nitride; and wherein the intermediate layer and the outer layer independently comprise at least one of a lecithin, phospholipid, phosphide, detergent, glyceride, monoglyceride, diglyceride, thiol phosphate, ester of monoglyceride, ester of fatty acid, compound containing phosphorous, compound containing sulfur, compound containing nitrogen, oil, grease, alcohol, composite oil, canola oil, vegetable oil, soybean oil, corn oil, ester of rapeseed oil, hydrocarbon oil, alkane, or combinations of any thereof. 21. The lubricated surface of claim 1, wherein the nano-particles comprise a plurality of nanoparticle inner nuclei and an outer layer intercalated with each nucleus or encapsulating each nucleus, the layer with the nucleus forming a layered nanoparticle, and a plurality of bonds, each bond bonded to at least two of the layered nanoparticles, such that each layered nanoparticle is bonded to at least one other of the layered nanoparticles by a bond. 22. The lubricated surface of claim 1, wherein the textured features comprise at least one feature selected from the group consisting of pores, waves, striations, channels, protrusions, asperities, depressions, grooves, holes, low points, high points, cracks, low areas, high areas, exposed sandwiched layers, and chemically functional material. 23. The lubricated surface of claim 1, wherein the textured features comprise at least one feature formed by one or more processes selected from the group consisting of etching, chemical etching, chemical functionalization, laser etching, laser blasting, sand blasting, physical etching, mechanical etching, top down processes, bottom up processes, chemical texturing, physical texturing, mechanical texturing, stamping, laser texturing, vapor deposition, plasma deposition, electroplating, self assembly, directed assembly, subtractive manufacturing, additive manufacturing, hybrid manufacturing, and other deposition. 24. The lubricated surface of claim 1, further comprising a tribo-film in contact with the textured features of the textured surface in a position to lubricate the surface. 25. The lubricated surface of claim 24, wherein the tribo-film comprises at least one of a phosphorus-containing compound and a boron-containing compound. 26. The lubricated surface of claim 24, wherein the tribo-film comprises at least one of a phosphide and a boride. 27. The lubricated surface of claim 24, wherein the tribo-film comprises at least a component of the nano-particle lubricant. 28. The lubricated surface of claim 1, wherein the size of one or more of the textured features is a multiple of the size of a nano-particle in contact with the textured surface. 29. The lubricated surface of claim 1, wherein the surface comprises a substrate with a layer of material deposited over at least a portion of the substrate, and wherein the textured features expose at least a portion of the substrate underneath the deposited layer. 30. The lubricated surface of claim 1, wherein the base material comprises at least one material selected from the group consisting of oil, grease, plastic, gel, wax, silicone, hydrocarbon oil, vegetable oil, corn oil, peanut oil, canola oil, soybean oil, mineral oil, paraffin oil, synthetic oil, petroleum gel, petroleum grease, hydrocarbon gel, hydrocarbon grease, lithium based grease, fluoroether based grease, ethylenebistearamide, and combinations of any thereof. 31. The lubricated surface of claim 1, wherein the base material comprises at least one material selected from the group consisting of an oil, a grease, a plastic, a gel, a wax, a silicone, and combinations of any thereof. 32. The lubricated surface of claim 1, wherein the base material comprises an oil or a grease. 33. The lubricated surface of claim 1, wherein the base material comprises at least one material selected from the group consisting of mineral oil, paraffin oil, synthetic oil, petroleum grease, hydrocarbon grease, lithium based grease, and combinations of any thereof. 34. The lubricated surface of claim 1, wherein the nano-particle lubricant further comprises an emulsifier. 35. The lubricated surface of claim 34, wherein the emulsifier comprises at least one material selected from the group consisting of lecithins, phospholipids, soy lecithins, detergents, distilled monoglycerides, monoglycerides, diglycerides, acetic acid esters of monoglycerides, organic acid esters of monoglycerides, sorbitan esters of fatty acids, propylene glycol esters of fatty acids, polyglycerol esters of fatty acids, compounds containing phosphorous, compounds containing sulfur, compounds containing nitrogen, and combinations of any thereof. 36. The lubricated surface of claim 34, wherein the emulsifier comprises a compound containing phosphorous. 37. The lubricated surface of claim 34, wherein the emulsifier comprises a phospholipid. 38. The lubricated surface of claim 34, wherein the emulsifier comprises a lecithin. 39. The lubricated surface of claim 1, wherein the nano-particle lubricant comprises a suspension, dispersion, or emulsion of molybdenum disulfide nano-particles in a base material comprising an oil or a grease, wherein the molybdenum disulfide nano-particles are intercalated with an oil medium selected from the group consisting of composite oil, canola oil, vegetable oil, soybean oil, corn oil, hydrocarbon oil, and combinations of any thereof. 40. The lubricated surface of claim 39, wherein the molybdenum disulfide nanoparticles are intercalated with a vegetable oil. 41. The lubricated surface of claim 39, further comprising an emulsifier comprising a phospholipid. 42. The lubricated surface of claim 41, wherein the emulsifier comprises a lecithin. 43. A method for lubricating a surface comprising: forming textured features in the surface to enhance the effectiveness of a nano-particle lubricant; andplacing a nano-particle lubricant in contact with the textured features of the textured surface in a position to lubricate the surface, wherein the nano-particle lubricant comprises a suspension, dispersion, or emulsion of nano-particles in a base material. 44. The method of claim 43, wherein forming the textured features to enhance the effectiveness of a nano-particle lubricant comprises chemical texturing. 45. The method of claim 44, wherein chemical texturing comprises chemically functionalizing at least a portion of the lubricated surface. 46. The method of claim 44, wherein chemical texturing comprises chemically anchoring at least a portion of the nano-particle lubricant to the surface. 47. The method of claim 43, wherein the nano-particles have an average particle dimension of less than or equal to about 100 nm. 48. The method of claim 43, wherein the nano-particles comprise solid nano-particles. 49. The method of claim 48, wherein the solid nano-particles comprise at least one material selected from the group consisting of molybdenum disulphide, tungsten disulphide, graphite, intercalated graphite, polytetrafluoroethylene, boron nitride, hexagonal boron nitride, soft metals, silver, lead, nickel, copper, cerium fluoride, zinc oxide, silver sulfate, cadmium iodide, lead iodide, barium fluoride, tin sulfide, zinc phosphate, zinc sulfide, mica, boron nitrate, borax, fluorinated carbon, zinc phosphide, boron, and combinations of any thereof. 50. The method of claim 43, wherein the nano-particles comprise layered nano-particles. 51. The method of claim 43, wherein the nano-particles comprise at least one type of layered nano-particles selected from the group consisting of molybdenum disulfide nano-particles, tungsten disulfide nano-particles, graphite nano-particles, boron nitride nano-particles, and combinations of any thereof. 52. The method of claim 43, wherein the nano-particles comprise at least one layered material comprising a chalcogenide. 53. The method of claim 43, wherein nano-particles comprise molybdenum disulfide nano-particles. 54. The method of claim 43, wherein the nano-particles comprise nano-particles having an open architecture. 55. The method of claim 43, wherein the nano-particles comprise an organic medium intercalated in the nano-particles. 56. The method of claim 55, wherein the organic medium comprises at least one material selected from the group consisting of oil mediums, grease mediums, alcohol mediums, composite oil, canola oil, vegetable oil, soybean oil, corn oil, ethyl and methyl esters of rapeseed oil, distilled monoglycerides, monoglycerides, diglycerides, acetic acid esters of monoglycerides, organic acid esters of monoglycerides, sorbitan, sorbitan esters of fatty acids, propylene glycol esters of fatty acids, polyglycerol esters of fatty acids, hydrocarbon oils, n-hexadecane, phospholipids, and combinations of any thereof. 57. The method of claim 55, wherein the organic medium comprises an oil medium selected from the group consisting of composite oil, canola oil, vegetable oil, soybean oil, corn oil, hydrocarbon oil, and combinations of any thereof. 58. The method of claim 55, wherein the organic medium comprises a vegetable oil. 59. The method of claim 55, wherein the organic medium comprises a phospholipid. 60. The method of claim 43, wherein the nano-particles comprise nano-particles having an open architecture and an organic medium intercalated in the nano-particles. 61. The method of claim 43, wherein the nano-particles are intercalated and encapsulated with an organic medium. 62. The method of claim 43, wherein the nano-particles comprise a layered nano-particle macro-composition. 63. The method of claim 43, wherein the nano-particles comprise a bonded plurality of layered nano-particle macro-compositions. 64. The method of claim 43, wherein the nano-particles comprise a nano-particle inner nucleus, an intermediate layer around the nucleus, and an outer layer intercalated with the nucleus or encapsulating the nucleus and the intermediate layer. 65. The method of claim 64, wherein the nanoparticle inner nucleus comprises at least one of molybdenum disulfide, tungsten disulfide, graphite, or boron nitride; and wherein the intermediate layer and the outer layer independently comprise at least one of a lecithin, phospholipid, phosphide, detergent, glyceride, monoglyceride, diglyceride, thiol phosphate, ester of monoglyceride, ester of fatty acid, compound containing phosphorous, compound containing sulfur, compound containing nitrogen, oil, grease, alcohol, composite oil, canola oil, vegetable oil, soybean oil, corn oil, ester of rapeseed oil, hydrocarbon oil, alkane, or combinations of any thereof. 66. The method of claim 43, wherein the nano-particles comprise a plurality of nanoparticle inner nuclei and an outer layer intercalated with each nucleus or encapsulating each nucleus, the layer with the nucleus forming a layered nanoparticle, and a plurality of bonds, each bond bonded to at least two of the layered nanoparticles, such that each layered nanoparticle is bonded to at least one other of the layered nanoparticles by a bond. 67. The method of claim 43, wherein the textured features comprise at least one feature selected from the group consisting of pores, waves, striations, channels, protrusions, asperities, depressions, grooves, holes, low points, high points, cracks, low areas, high areas, exposed sandwiched layers, and chemically functional material. 68. The method of claim 43, wherein the textured features are formed by one or more processes selected from the group consisting of etching, chemical etching, chemical functionalization, laser etching, laser blasting, sand blasting, physical etching, mechanical etching, top down processes, bottom up processes, chemical texturing, physical texturing, mechanical texturing, stamping, laser texturing, vapor deposition, plasma deposition, electroplating, self assembly, directed assembly, subtractive manufacturing, additive manufacturing, hybrid manufacturing, and other deposition. 69. The method of claim 43, further comprising forming a tribo-film in contact with the textured features of the textured surface in a position to lubricate the surface. 70. The method of claim 69, wherein the tribo-film comprises at least one of a phosphorus-containing compound and a boron-containing compound. 71. The method of claim 69, wherein the tribo-film comprises at least one of a phosphide and a boride. 72. The method of claim 69, wherein the tribo-film comprises at least a component of the nano-particle lubricant. 73. The method of claim 43, wherein the size of one or more of the textured features is a multiple of the size of a nano-particle in contact with the textured surface. 74. The method of claim 43, further comprising: depositing a layer of material over a substrate surface; andexposing at least a portion of the substrate by forming the textured features in the deposited layer of material. 75. The method of claim 43, wherein the base material comprises at least one material selected from the group consisting of oil, grease, plastic, gel, wax, silicone, hydrocarbon oil, vegetable oil, corn oil, peanut oil, canola oil, soybean oil, mineral oil, paraffin oil, synthetic oil, petroleum gel, petroleum grease, hydrocarbon gel, hydrocarbon grease, lithium based grease, fluoroether based grease, ethylenebistearamide, and combinations of any thereof. 76. The method of claim 43, wherein the base material comprises at least one material selected from the group consisting of an oil, a grease, a plastic, a gel, a wax, a silicone, and combinations of any thereof. 77. The method of claim 43, wherein the base material comprises an oil or a grease. 78. The method of claim 43, wherein the base material comprises at least one material selected from the group consisting of mineral oil, paraffin oil, synthetic oil, petroleum grease, hydrocarbon grease, lithium based grease, and combinations of any thereof. 79. The method of claim 43, wherein the nano-particle lubricant further comprises an emulsifier. 80. The method of claim 79, wherein the emulsifier comprises at least one material selected from the group consisting of lecithins, phospholipids, soy lecithins, detergents, distilled monoglycerides, monoglycerides, diglycerides, acetic acid esters of monoglycerides, organic acid esters of monoglycerides, sorbitan esters of fatty acids, propylene glycol esters of fatty acids, polyglycerol esters of fatty acids, compounds containing phosphorous, compounds containing sulfur, compounds containing nitrogen, and combinations of any thereof. 81. The method of claim 79, wherein the emulsifier comprises a compound containing phosphorous. 82. The method of claim 79, wherein the emulsifier comprises a phospholipid. 83. The method of claim 79, wherein the emulsifier comprises a lecithin. 84. The method of claim 43, wherein the nano-particle lubricant comprises a suspension, dispersion, or emulsion of molybdenum disulfide nano-particles in a base material comprising an oil or a grease, wherein the molybdenum disulfide nano-particles are intercalated with an oil medium selected from the group consisting of composite oil, canola oil, vegetable oil, soybean oil, corn oil, hydrocarbon oil, and combinations of any thereof. 85. The method of claim 84, wherein the molybdenum disulfide nanoparticles are intercalated with a vegetable oil. 86. The method of claim 84, wherein the nano-particle lubricant further comprises an emulsifier comprising a phospholipid. 87. The method of claim 86, wherein the emulsifier comprises a lecithin. 88. The lubricated surface of claim 1, wherein the nano-particles comprise inorganic nano-particles. 89. The method of claim 43, wherein the nano-particles comprise inorganic nano-particles. 90. The lubricated surface of claim 1, wherein the nano-particles comprise nano-particles selected from the group consisting of molybdenum disulfide nano-particles, tungsten disulfide nano-particles, graphite nano-particles, boron nitride nano-particles, silver nano-particles, lead nano-particles, nickel nano-particles, copper nano-particles, cerium fluoride nano-particles, zinc oxide nano-particles, silver sulfate nano-particles, cadmium iodide nano-particles, lead iodide nano-particles, barium fluoride nano-particles, tin sulfide nano-particles, zinc phosphate nano-particles, zinc sulfide nano-particles, mica nano-particles, boron nitrate nano-particles, borax nano-particles, fluorinated carbon nano-particles, zinc phosphide nano-particles, boron nano-particles, and combinations thereof. 91. The method of claim 43, wherein the nano-particles comprise nano-particles selected from the group consisting of molybdenum disulfide nano-particles, tungsten disulfide nano-particles, graphite nano-particles, boron nitride nano-particles, silver nano-particles, lead nano-particles, nickel nano-particles, copper nano-particles, cerium fluoride nano-particles, zinc oxide nano-particles, silver sulfate nano-particles, cadmium iodide nano-particles, lead iodide nano-particles, barium fluoride nano-particles, tin sulfide nano-particles, zinc phosphate nano-particles, zinc sulfide nano-particles, mica nano-particles, boron nitrate nano-particles, borax nano-particles, fluorinated carbon nano-particles, zinc phosphide nano-particles, boron nano-particles, and combinations thereof. 92. The lubricated surface of claim 1, wherein the nano-particles comprise nano-particles selected from the group consisting of graphene nanoparticles, diamond nanoparticles, diamond-like nanoparticles, carbon nanotubes, carbon fullerenes, and combinations thereof. 93. The method of claim 43, wherein the nano-particles comprise nano-particles selected from the group consisting of graphene nanoparticles, diamond nanoparticles, diamond-like nanoparticles, carbon nanotubes, carbon fullerenes, and combinations thereof.
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