Talk:Triboelectric effect
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[edit] Friction or contact?
Remove the reference to friction being involved in electric charging, be it static or otherwise. Friction has nothing to do with it.
I believe the two materials only have to come into contact with each other to have this effect. It doesn't have to involve friction. - Omegatron
- There is something called a triboelectric tube that consists of a glass flask containing neon at below atmospheric pressure and mercury metal. When the tube is rotated, flashes of light are supposedly observed where the mercury separates from the glass. So this seems to support the fact that the materials only need to be in contact. There is a picture of one at http://www.theodoregray.com/PeriodicTable/Elements/080/index.s7.html#sample9 --71.227.190.111 02:34, 14 July 2006 (UTC)
We've separated triboelectric effect and contact electrification. Might be part of the answer. — Omegatron 15:48, 14 July 2006 (UTC)
Certainly friction cannot be completely eliminated from consideration. Evidence of this includes the example of a strip of fur and another object - mere contact may induce some level of charge, however, friction (ie rubbing) of the materials dramatically increases the effect. Likewise with dust in a ductwork; the dust's mere presence in the duct (settled in the system) dust not create the electical charges needed to create a spark, nor does dumping the dust out (in small quantities) however the dust moving through the system, or even fluids flowing through any pipe work does create static charges sufficient to damage associated electronic system components or create an ignition point for a sudden release of energy (ie explosion). However defined friction does appear to play a significant role in this effect.
[edit] Triboelectric series lists
triboelectric series lists to be combined (probably technically copyrighted the way they are here):
(By the way, these are variable, and depend also on surface shape, contact method, etc. two objects of the same material with differnet surface types will produce a charge sometimes)
"Remember that it is the work function of the material that determines its position in the series. In general, materials with higher work function tend to appropriate electrons from materials with lower work functions."
Many lists removed - check history if you want to see them.
[edit] Contact between the same material
I added the bit about contact between two objects made of the same material, which definitely can create a charge imbalance. What I am not definitely sure of is whether this is still considered the triboelectric effect... - Omegatron 03:45, August 5, 2005 (UTC)
[edit] Merge
I started adding some info about contact electrification in general to triboelectric effect. I now see that triboelectric specifically refers to different materials, so I will remove that info. I think maybe the two articles should be merged, however. I see that neither article seems to be aware of the other. - Omegatron 19:10, August 7, 2005 (UTC)
[edit] Lorente generator
I'm removing the following text from the article because I don't think it adds any value; the description of this device is incomplete and the last point isn't even a complete sentence.
- In 1991, G. L. Paramo developed the Lorente generator. The Lorente generator is a triboelectric machine to aid in the construction and operation of electrostatic generators. It consists of four cylinders (with two being rigid dielectrics) that operate without friction (but are under a slight pressure). No injection of electrical charges originating from outside within the Lorente generator.
If someone would like to rewrite it, feel free to add it back. —Kymacpherson 18:52, 31 October 2006 (UTC)
