Tribochromism refers to a change in colour of a material caused by mechanical
friction
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction:
*Dry friction is a force that opposes the relative lateral motion of t ...
.
Tribochromatic materials are used when friction has to be detected. These materials generally change colour under
mechanical stress conditions and then the colour gradually fades once the stress is removed.
See also
*
Triboluminescence
Triboluminescence is a phenomenon in which light is generated when a material is mechanically pulled apart, ripped, scratched, crushed, or rubbed (see tribology). The phenomenon is not fully understood, but appears to be caused by the separation a ...
– An optical phenomenon in which light is generated when material is subject to mechanical breaking, especially noticeable when crushing Wint-O-Green Life Savers in the dark.
Chromism
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