Piezoelectricity information?

Question

I'm looking for information on Piezoelectricity, what material would provide the highest charge. Can anyone reacommend any websites please? No wikipedia please.

Answer 1

some useful info here.

http://www.azom.com/details.asp?ArticleI...

Answer 2

here's some stuff:

http://www.micromega-dynamics.com/piezo-...

http://www.shelleys.demon.co.uk/piezo.ht...

http://www.piezo.com/tech2intropiezotran...

Answer 3

ive always asumed its a type of ''speaker''....a flat copper disk with 2 tiny springs attached...

Answer 4

Piezoelectricity is the ability of some materials (notably crystals and certain ceramics) to generate an electric potential[1] in response to applied mechanical stress. This may take the form of a separation of electric charge across the crystal lattice. If the material is not short-circuited, the applied charge induces a voltage across the material. The word is derived from the Greek piezein, which means to squeeze or press.

The piezoelectric effect is reversible in that materials exhibiting the direct piezoelectric effect (the production of electricity when stress is applied) also exhibit the converse piezoelectric effect (the production of stress and/or strain when an electric field is applied). For example, lead zirconate titanate crystals will exhibit a maximum shape change of about 0.1% of the original dimension.