Friction is the force that happens when two surfaces that touch each other move relative to each other. Wear, on the other hand, is the process of mechanical and/or chemical damage that lowers the quality of the materials that touch each other.

Solid parts move relative to each other in almost all mechanical systems, whether they are man-made or natural. There will be frictional resistance and wear wherever two surfaces slide or roll against each other. The way materials react to this kind of interaction, which is often called “tribological,” depends not only on the exact nature of the materials but also on the details of how they touch and move. Friction and wear are not properties of the material, but rather responses of the system. Because of this, measuring tribological behavior is hard, and it’s important to have a good understanding of the things that affect friction and wear.

The amount of friction force depends on the load and how fast it is moving. When the load goes up, the rate of wear goes up a lot. On the other hand, the rate of wear goes down when the coefficient of friction is low and the sliding speed, load, and distance are all increased.


Friction is very important in a lot of different areas of industry because reducing friction can save a lot of energy. Materials can be damaged by too much friction either directly or indirectly by the heat it makes. At the same time, wear resistance is important because it has a big impact on how long a part will last. Because of this, both of these things need to be studied in depth if we want to use less energy and make sliding parts last longer. Tribology is the study of what happens when two or more materials move against each other. The coefficient of friction and the rate of wear is the most important results of a tribological measurement. This application report shows how tribological testing of polymers can be used in both basic and applied research, in both dry and wet conditions.

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