What is the effect of temperature on coefficient of friction?

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Discussion Overview

The discussion centers on the relationship between temperature and the coefficient of friction, exploring how temperature variations may affect frictional properties of different materials. Participants consider both theoretical and practical implications, as well as the influence of material types and surface conditions.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant questions how the coefficient of static friction depends on temperature and what happens to materials as temperature changes.
  • Another participant suggests that there may not be a single correct answer, indicating that the relationship likely depends on the specific material involved.
  • Some participants propose that increased atomic movement at higher temperatures could lead to changes in the coefficient of kinetic friction, suggesting that friction might increase with temperature for certain materials.
  • There is a mention of the effect of surface types on the coefficient of friction, implying that this could complicate the relationship with temperature.
  • One participant expresses skepticism about the existence of a clear relationship between temperature and the coefficient of friction, suggesting that it might depend more on material properties than temperature itself.
  • Another participant notes that while the coefficient of friction may remain constant at lower relative velocities, it could increase at higher speeds due to heat generated between surfaces.
  • There is a discussion about how different materials respond differently to temperature changes, raising questions about the underlying mechanisms that cause these variations.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the relationship between temperature and the coefficient of friction. Multiple competing views are presented, with some arguing for a dependence on material properties while others suggest temperature plays a significant role.

Contextual Notes

The discussion highlights the complexity of the topic, with limitations in assumptions about material behavior and the need for more specific variables to clarify the relationship between temperature and friction.

Hardik Batra
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How Co-efficient of static friction depends upon temperature?

What happens to the material when increase/decrease the temp. of a material ?
 
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I can't give an answer to this but I strongly suspect that there is NO single correct answer. That it depends upon the material.
 
Isn't the faster the atoms move when the temp increase and slower as the temperature decrease. As the coefficient of kinetic friction is the force between two objects when one object is moving, or if two objects are moving against each other. Also the type of surface on which the object is sitting affects the coefficient of friction. So I guess if the temperature of one object increase, the co-efficient of friction also increase.

http://www.labthinkinternational.co...f-temperature-on-coefficient-of-friction.html

Try this link
 
lovegovapvn said:
Isn't the faster the atoms move when the temp increase and slower as the temperature decrease. As the coefficient of kinetic friction is the force between two objects when one object is moving, or if two objects are moving against each other. Also the type of surface on which the object is sitting affects the coefficient of friction. So I guess if the temperature of one object increase, the co-efficient of friction also increase.

http://www.labthinkinternational.co...f-temperature-on-coefficient-of-friction.html

Try this link


So what you mean is that water has a higher coefficient of kinetic friction than ice ? Nontheless there is no relation between temperature and the coefficient of friction , at least I haven't heard about it. Perhaps what the sir above me said is right sometimes , perhaps the other way around is right it depends on the material and not really that much on the temperature.
 
lol yeah perhaps this question need to be narrow down to include more specific variable.
 
Well IMO we shouldn't even bother with such a thing. Unless the guy who posted about this really wants an answer.
 
some one said that,

Yes, It does not vary with lesser relative velocity between surfaces.But when the speed exceeds 10m/s ,due to heat produced between the surfaces the co-efficient increases.

one said that,

For a given temperature the coefficient of friction between any given pair of materials is constant. As temperature rises, different materials respond differently.
Increased speed will raise the temperature, so the friction will change. But initially, the speed doesn't matter.

These things are correct.?But what happens to the materials so that it responds differently with different material.
 

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