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Bismuth bronze or bismuth brass is a copper alloy which typically contains 1-3% bismuth by weight, although some alloys contain over 6% Bi. This bronze alloy is very corrosion -resistant, a property which makes it suitable for use in environments such as the ocean.
Agreed, brass is commonly used for its "self lubricating" properties. Kinema 09:55, 12 September 2007 (UTC) Brass appears to have been used on battleships for surfaces that handled black powder charges, supposedly because brass-to-brass contact does not create sparks (like other metals do) that could set off the powder.
Graphite. Used in air compressors, food industry, railway track joints, brass instrument valves, piano actions, open gear, ball bearings, machine-shop works, etc. It is also very common for lubricating locks, since a liquid lubricant allows particles to get stuck in the lock worsening the problem. It is often used to lubricate the internal ...
Tribology is the science and engineering of understanding friction, lubrication and wear phenomena for interacting surfaces in relative motion.It is highly interdisciplinary, drawing on many academic fields, including physics, chemistry, materials science, mathematics, biology and engineering. [1]
An Australian Kelpie wearing a plastic Elizabethan collar to help an eye infection heal. An Elizabethan collar, E collar, pet ruff or pet cone (sometimes humorously called a treat funnel, lamp-shade, radar dish, dog-saver, collar cone, or cone of shame) is a protective medical device worn by an animal, usually a cat or dog.
A bamboo ear pick with a down puff A metal ear pick. Ear picks, also called ear scoops, or ear spoons, or earpicks, are a type of curette used to clean the ear canal of earwax (cerumen). They are preferred and are commonly used in East Asia, South Asia and Southeast Asia because Asians tend to develop dry ear wax. [1] [2]
The majority of people love bringing a lubricant into the bedroom to make sexual activity more enjoyable and reduce pain during vaginal penetration with fingers, a penis or sex toys, says Dr. Ross.
Boundary lubrication is defined as the regime in which the load is carried by the surface asperities (high points) rather than by the lubricant. [7] This is the effect that makes Ultra-high-molecular-weight polyethylene "self-lubricating". Boundary film lubrication: [8] The hydrodynamic effects are negligible. The bodies come into closer ...