Molybdenum Disulfide, also known as Molybdenum Disulphide, MoS2 and Moly, has been extensively used in various situations to lessen wear, tear and friction between moving parts or joints. It is one of the commonly used and widely popular solid film lubricants being used in a wide range of industrial, manufacturing, mining, marine, agriculture, and automotive applications. Molybdenum disulfide, which is a naturally mined inorganic material, has many unique physical properties like: - Density - 4.9
- Color - blue gray to black
- Molecular weight - 160.08
- Crystal form – Hexagonal or rhombohedral
- Electrical Conductivity - Low but variable
- Vacuum Lubrication - Excellent
- Radiation Stability - Good
- Magnetic properties - Diamagnetic
- Dissociation temperature - 1370oC (non-oxidizing environment)
- Melting Point - 1700oC (under pressure)
- Sublimation temperature - 1050oC in high vacuum
A brief on the coating methods Molybdenum disulfide can be coated or applied to any substrate in several ways. It can be applied to any metal or other materials like glass, plastics, and ceramics easily without taking any painstaking effort. Some of the commonly used and widespread methods being employed to coat MoS2 on any substrate material include: Burnished film method – In this method of coating, MoS2 is physically rubbed to any surface to make a coating of 1 to 5 micrometer thickness. Impingement method – This is the simplest and most efficient coating method massively used in various industrial and commercial applications. The method uses a high velocity particle-entrained air stream to coat the solid film lubricant on the surface of the substrate. This method of coating is highly reliable as it well adhered to the surface. Physical Vapor Deposition (PVD) method – It is also a common coating method used to apply Molybdenum Disulphide in desired thickness on a variety of substrates. In this method, the material to be coated on the surface is converted into a vapor form. The vapor is then conveyed to the substrate and then it gets condensed on the substrate to form a thin layer. Typical applications Molybdenum disulphide has gained substantial industry reputation and wide customer base across various industrial sectors because of its efficiency in protecting the below interacting surfaces from wear and friction: - Circuit Breakers and Switches
- Compressors and Rheostats
- Cryogenic Pumps
- Electrical Connectors
- Engine and Drive Train Parts
- High Vacuum Applications
- Machine tools, Pins, Taps
- Magnetic Heads
- Pilot Valves, Chain Saws
- Rubber Gaskets, "O" Ring Seals
- Seamer Rolls
- Slide Mechanisms
Molybdenum Disulfide is available in various forms and options for protecting items from the smallest fasteners to huge industrial components from wear and friction.
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