Electrophoretic deposition of pure MoS[sub 2] dry film lubricant coatings

Journal Article · Thu Jul 01 00:00:00 EDT 1993 · Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States)

DOI:https://doi.org/10.1116/1.578570· OSTI ID:6048824

Panitz, J K.G.; Dugger, M T; Peebles, D E; Tallant, D R; Hills, C R ^[1]

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1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

Electrophoresis can be employed to deposit a wide variety of materials including MoS[sub 2] coatings that exhibit properties comparable to the properties of sputtered MoS[sub 2] coatings used as lubricants for vacuum applications. Coatings which display coefficients of friction as low as 0.03 can be deposited from an aqueous suspension containing approximately 2.5 wt %, micrometer-sized MoS[sub 2] particles stablized with approximately 500 ppm of a nonionic surfactant. Uniform coatings with appropriate thicknesses can be deposited on nonplanar surfaces in minutes with minimal equipment. The morphology of the as-deposited coatings suggest that MoS[sub 2] is electrophoretically active as a result of a net positive surface charge along the basal plane.

• OSTI ID: 6048824
• Journal Information: Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States), Journal Name: Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States) Vol. 11:4; ISSN 0734-2101; ISSN JVTAD6
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
CHALCOGENIDES
DEPOSITION
ELECTRODEPOSITION
ELECTROLYSIS
ELECTROPHORESIS
FRICTION
LUBRICANTS
LUBRICATING PROPERTIES
LYSIS
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
PHYSICAL PROPERTIES
REFRACTORY METAL COMPOUNDS
SOLID LUBRICANTS
SULFIDES
SULFUR COMPOUNDS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
VACUUM SYSTEMS