The Material for Piezoelectric Power Transducers
The mechanism of the stability in piezoceramics is examined, based on a double heterovalent substitution in order to vanish the space charges \(\rho = - div\vec P.\) In the case of power materials the losses are minimized by creating oxygen vacancies. The origins of the instabilities and ageing in these materials are approached.
KeywordsTitanium Migration Manganese Perovskite Acoustics
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