| rdfs:comment | - Piezoelectricity -(n) (pE-A-zO-lek-'tri-s(i)tE) The generation of electricity or of electric polarity in ionic crystals subjected to mechanical stress, or the generation of stress in such crystals subjected to an applied voltage.
- In 2256, there was reportedly an accident at Tellun in which a dilithium pocket went piezoelectric and ripped apart the bottom of the mine. Fifty miners were said to have been vaporized. (DIS: "Context Is for Kings") A piezoelectric effect was also responsible for the near-destruction of Drema IV. (TNG: "Pen Pals" )
- Piezoelectricity or 'pressure electricity' is the ability of some materials (notably crystals and certain ceramics, including bone) to generate an applied mechanical stress in response to electric potential (voltage). 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 piezo or piezein, which means to squeeze or press.
- Piezoelectricity is the ability of some materials (notably crystals and certain ceramics, including bone) to generate an electric potential 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 piezo or piezein, which means to squeeze or press.
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| abstract | - Piezoelectricity or 'pressure electricity' is the ability of some materials (notably crystals and certain ceramics, including bone) to generate an applied mechanical stress in response to electric potential (voltage). 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 piezo or 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 reverse 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. The effect finds useful applications such as the production and detection of sound, generation of high voltages, electronic frequency generation, microbalances, and ultra fine focusing of optical assemblies. It is also the basis of a number of scientific instrumental techniques with atomic resolution, the scanning probe microscopies such as STM, AFM, MTA, SNOM etc, and everyday uses such as acting as the ignition source for cigarette lighters and push-start propane barbecues.
- Piezoelectricity -(n) (pE-A-zO-lek-'tri-s(i)tE) The generation of electricity or of electric polarity in ionic crystals subjected to mechanical stress, or the generation of stress in such crystals subjected to an applied voltage.
- Piezoelectricity is the ability of some materials (notably crystals and certain ceramics, including bone) to generate an electric potential 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 piezo or 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 reverse 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. The effect finds useful applications such as the production and detection of sound, generation of high voltages, electronic frequency generation, microbalances, and ultra fine focusing of optical assemblies. It is also the basis of a number of scientific instrumental techniques with atomic resolution, the scanning probe microscopies such as STM, AFM, MTA, SNOM etc, and everyday uses such as acting as the ignition source for cigarette lighters and push-start propane barbecues.
- In 2256, there was reportedly an accident at Tellun in which a dilithium pocket went piezoelectric and ripped apart the bottom of the mine. Fifty miners were said to have been vaporized. (DIS: "Context Is for Kings") A piezoelectric effect was also responsible for the near-destruction of Drema IV. (TNG: "Pen Pals" )
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