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Piezoelectricity

Advanced Physics Term Project
by

Katie Rowe

on 6 January 2013

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Transcript of Piezoelectricity

Piezoelectricity and its applications in modern energy harvesting Katie Rowe
Mr. Godkin
Advanced Physics
January 7, 2013 Overview History
Science
Applications The Curie Brothers Jacques Pierre 1880 Gabriel Lippmann 1881 The Converse Piezoelectric Effect Paul Langevin 1917 Ultrasonic submarine detector Science The Piezoelectric Effect
The Converse Piezoelectric Effect
Materials The Piezoelectric Effect Piezoelectric materials generate a voltage when stressed mechanically. Mechanical Energy Electrical Energy + Energy Why? Piezoelectric materials have asymmetric crystalline structures. A mechanical force causes ions to align with the regular pattern of the crystal lattice and produce a change in electric potential. The Converse Piezoelectric Effect Piezoelectric materials deform
physically when an electric field is applied. Piezoelectric Materials Crystals
Ceramics
Organic Materials Crystals 20 of 32 Crystal Classes (All Non-centrosymmetric) Quartz Rochelle Salt Tourmaline Cane Sugar Topaz Gallium
Orthophosphate Langasite Man-made Ceramics perovskite or tungsten-bronze structures Barium Titanate Lead Titanate Lead Zirconate Titanate (PZT) Silk Other Wood Tendon Dentin Bone Demonstrations Applications Vehicles People Foot Traffic Shoes Nanotech Conclusion
Full transcript