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Untersuchungen an keramischen elektrostriktiven Stoffen in Abhangigkeit von ihrem Polarisationszustand

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A method is described for measuring the intrinsic energy inherent in polarized ceramic materials. When heating a polycrystalline specimen beyond its Curie point, a measurable electrical charge is released. By measuring this charge, the intrinsic field intensity Ei corresponding to the previous state of polarization can be determined. From the piezo-electric constant δ measured prior to depolarization, and from the intrinsic field intensity Ei , the electrostriction coefficient γ [1] introduced by Hecht can be determined. Tests with various materials have shown that γ is a characteristic constant for the properties of the material. For this reason is has been suggested that γ signifies the term “electrostriction constant” [2].
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Document Type: Research Article

Publication date: January 1, 1962

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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