| 1. | All ferroelectric materials are pyroelectric and piezoelectric, but not the converse.
|
| 2. | Ferroelectric materials are required by symmetry considerations to be also piezoelectric and pyroelectric.
|
| 3. | Uncooled detectors are mostly based on pyroelectric and ferroelectric materials or microbolometer technology.
|
| 4. | All ferroelectric materials exhibit piezoelectricity a piezoelectric effect.
|
| 5. | Other ferroelectric materials used include triglycine sulfate, polyvinylidene fluoride ( PVDF ) and lithium tantalate.
|
| 6. | Electrical hysteresis typically occurs in ferroelectric material, where domains of polarization contribute to the total polarization.
|
| 7. | In ferroelectric materials there is a spontaneous electric polarisation in the absence of an applied electric field.
|
| 8. | Ferroelectric materials are all piezoelectric and therefore have a spontaneous electric polarisation as the structures are unsymmetrical.
|
| 9. | A ferroelectric material has a nonlinear relationship between the applied electric field and the apparent stored charge.
|
| 10. | Ferroelectric polymers fall into a category of ferroelectric materials known as a'order-disorder'material.
|
मोबाइल