Browse Topic: Lubricating greases
Slit lamp biomicrography is paramount to the practice of ophthalmology, allowing for an inside look at various areas of the eye with a range of magnification levels and light sources. The development of medical devices, such as the ophthalmologic slit lamp, brings about a number of design restrictions. The equipment must be able to perform the necessary tasks with precision to allow for patient diagnosis and proper treatment, and must maintain a high level of cleanliness, low levels of noise during operation, and, due to the typical high cost of medical equipment, have a high service life with as little required maintenance as possible. With these design requirements in mind, the development team from A.R.C. Laser GmbH, Nürnberg, Germany, was tasked with creating a new slit lamp for an already established marketplace.
NASA has an ongoing need for high-temperature solid lubricant coatings to reduce friction and wear in turbine engines, rocket engines, and other mechanical systems. Such lubricants must be thermally and chemically stable in air, vacuum, and reducing environments like hydrogen. Traditional lubricants like oil, grease, and PTFE (Polytetrafluoroethylene), and even more exotic solid lubricants like graphite and molybdenum disulphide, lack such capabilities. The key problem is to identify and formulate a material that possesses good mechanical properties, long-term environmental durability, and acceptable friction and wear-reducing characteristics while being practical to apply to bearings, seals, and other mechanical components.
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