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M. Wegener, J. Döring, V. Bovtun, S. Bauer, and R. Gerhard, Large figure of merit and essential electroacoustical parameters of polypropylene ferroelectrets for air-borne ultrasound transducers. Submitted to IEEE Trans. UFFC. 2007.
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M. Wegener, J. Döring, V. Bovtun, S. Bauer, and R. Gerhard, Large figure of merit and essential electroacoustical parameters of polypropylene ferroelectrets for air-borne ultrasound transducers. Submitted to IEEE Trans. UFFC. 2007.
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Controlled inflation of voids in cellular polymer ferroelectrets: Optimizing electromechanical transducer properties
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M. Wegener, R. Gerhard-Multhaupt, M. Dansachmüller, R. Schwödiauer, S. Bauer-Gogonea, S. Bauer, M. Paajanen, H. Minkkinen, and J. Raukola, Controlled inflation of voids in cellular polymer ferroelectrets: Optimizing electromechanical transducer properties. Appl. Phys. Lett. 84, 392 - 394 (2004).
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M. Wegener, W. Wirges, J. Fohlmeister, B. Tiersch, and R. Gerhard-Multhaupt, Two-step inflation of cellular polypropylene films: Void-thickness increase and enhanced electromechanical properties. J. Phys. D: Appl. Phys. 37, 623 - 627 (2004).
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G. S. Neugschwandtner, R. Schwödiauer, S. Bauer-Gogonea, S. Bauer, M. Paajanen, and J. Lekkala, Piezo- and pyroelectricity of a polymer-foam space-charge electret. J. Appl. Phys. 89, 4503 - 4511 (2001).
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Piezoelectric polyethylene terephthalate (PETP) foams - Specifically designed and prepared ferroelectret films
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M. Wegener, W. Wirges, and R. Gerhard-Multhaupt, Piezoelectric polyethylene terephthalate (PETP) foams - Specifically designed and prepared ferroelectret films. Adv. Eng. Mat. 7, 1128 - 1131 (2005).
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Optimized preparation of elastically soft, highly piezoelectric, cellular ferroelectrets from non-voided polyethylene-terephthalate films
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W. Wirges, M. Wegener, O. Voronina, L. Zirkel, and R. Gerhard-Multhaupt, Optimized preparation of elastically soft, highly piezoelectric, cellular ferroelectrets from non-voided polyethylene-terephthalate films. Adv. Fun. Mat. 17, 324 - 329 (2007).
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Cellular polyethylene-naphthalate ferroelectrets: Foaming in supercritical carbon dioxide, structural and electrical preparation, and resulting piezoelectricity
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P. Fang, M. Wegener, W. Wirges, R. Gerhard, and L. Zirkel, Cellular polyethylene-naphthalate ferroelectrets: Foaming in supercritical carbon dioxide, structural and electrical preparation, and resulting piezoelectricity. Appl. Phys. Lett. 90, 192908 (2007).
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