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A simple approach to understand solid state chemistry with the example of a piezoelectric material incorporated in a birthday card

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Academic year: 2020

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Figure

Figure 1. Components of the birthday card.
Figure 2. Scheme of the piezoelectric effect.
Figure 3. Perovskite structure of PZT above (a) and below (b) the Curie point.
Figure 5. Deformation of the piezoelectric material in the speaker when voltage is applied
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