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The larger the value of μ (aka Mu, the coefficient of friction, the greater the frictional force on an object. For instance, steel on nonlubricated steel has a μ of 0.58 while steel on lubricated steel has a μ of 0.06.
Between 0.194 and 0.306. Source: https://circle.ubc.ca/bitstream/handle/2429/27995/UBC_1989_A7%20R56.pdf?sequence=1
Use the "tan of the inclination angle" test.
Grease reduces friction because the two original materials are no longer touching each other. If you have a piece of steel rubbing against another piece of steel then there is friction between them. If grease is on the surfaces then you have molecules of grease rubbing against other molecules of grease. Grease is slippery stuff as it has a very lowCoefficient of friction. Every material has a coefficient of friction but with steel it is quite high. Teflon is very very low. Proper name polytetrafluorethylene or ptfe.
Objects which cause little amount of friction are smooth objects such as glass and other objects which are man-made (most of the time). However, there are many objects which are natural which can create minimal amounts of friction too.answ2. Very often, using two different materials will give superior wear characteristics - = low friction. e.g. White metal bearings against steel, Steel against wood (in ship's prop shafts).I'd expect glass against glass to have a high friction coefficient.
Diamond-like Carbon has a coefficient of friction of as low as 0.05 on polished steel.
The larger the value of μ (aka Mu, the coefficient of friction, the greater the frictional force on an object. For instance, steel on nonlubricated steel has a μ of 0.58 while steel on lubricated steel has a μ of 0.06.
You need to know both material involved in the friction to find the coefficient
The larger the value of μ (aka Mu, the coefficient of friction, the greater the frictional force on an object. For instance, steel on nonlubricated steel has a μ of 0.58 while steel on lubricated steel has a μ of 0.06.
The larger the value of μ (aka Mu, the coefficient of friction, the greater the frictional force on an object. For instance, steel on nonlubricated steel has a μ of 0.58 while steel on lubricated steel has a μ of 0.06.
The larger the value of μ (aka Mu, the coefficient of friction, the greater the frictional force on an object. For instance, steel on nonlubricated steel has a μ of 0.58 while steel on lubricated steel has a μ of 0.06.
Between 0.194 and 0.306. Source: https://circle.ubc.ca/bitstream/handle/2429/27995/UBC_1989_A7%20R56.pdf?sequence=1
Use the "tan of the inclination angle" test.
Steel is a ferrous metal, aluminum is a non-ferrous metal
Grease reduces friction because the two original materials are no longer touching each other. If you have a piece of steel rubbing against another piece of steel then there is friction between them. If grease is on the surfaces then you have molecules of grease rubbing against other molecules of grease. Grease is slippery stuff as it has a very lowCoefficient of friction. Every material has a coefficient of friction but with steel it is quite high. Teflon is very very low. Proper name polytetrafluorethylene or ptfe.
stainless is steel. aluminum is aluminum
linear absorption coefficientAccording to the results of a laboratory experiment I did, the gamma-ray linear absorption coefficient for aluminum is about 10m^-1, and for lead is about 48m^-1, so considering steel is roughly twice the density of aluminum, I'd guess it would be about 20m^-1, however this experiment is not confirmed.