Electrification of materials
Static electricity - Principles. Problems. Applications
Archive REF: D1035 V1
Electrification of materials
Static electricity - Principles. Problems. Applications

Author : Claude MENGUY

Publication date: December 10, 1993 | Lire en français

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3. Electrification of materials

The term static electrification is used to designate all processes, sometimes fortuitous, leading to the separation of positive and negative electrical charges. These are generally mechanical actions such as contact, friction or impact between solid surfaces, or between a solid surface and a liquid surface. It can also involve the breaking or splitting of a solid or liquid surface. Here, we will focus on the first two phenomena.

3.1 Electrification at solid-solid interfaces

As mentioned in the background, frictional electrification, which gives rise to triboelectricity, has been known for several millennia. Contact between two materials is, in fact, sufficient to produce electrification. Friction is merely an enhanced form of contact, leading to an increase...

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