Piezo- and pyroelectricity of a polymer-foam space-charge electret

G. Neaugschwandtner; R. Schwödiauer; Simona Bauer-Gogonea; Siegfried Bauer; Mika Paajanen; Jukka Lekkala

doi:10.1063/1.1355719

Piezo- and pyroelectricity of a polymer-foam space-charge electret

G. Neaugschwandtner, R. Schwödiauer, Simona Bauer-Gogonea, Siegfried Bauer, Mika Paajanen, Jukka Lekkala

Johannes Kepler University of Linz

Research output: Contribution to journal › Article › Scientific › peer-review

117 Citations (Scopus)

Abstract

Charged closed-cell polypropylene polymer foams are highly sensitive and broadband piezoelectric materials with a quasistatic piezoelectric d₃₃ coefficient about 250 pC/N and a dynamic d₃₃coefficient of 140 pC/N at 600 kHz. The piezoelectric coefficient is much larger than that of ferroelectric polymers, like polyvinylidene fluoride, and compares favorably with ferroelectric ceramics, such as lead zirconate titanate. The pyroelectric coefficient p₃=0.25 μC/m² K is small in comparison to ferroelectric polymers and ferroelectric ceramics. The low density, small pyroelectric coefficient and high piezoelectric sensitivity make charged polymer foams attractive for a wide range of sensor and transducer applications in acoustics, air-borne ultrasound, medical diagnostics, and nondestructive testing.

Original language	English
Pages (from-to)	4503-4511
Number of pages	9
Journal	Journal of Applied Physics
Volume	89
Issue number	8
DOIs	https://doi.org/10.1063/1.1355719
Publication status	Published - 2001
MoE publication type	A1 Journal article-refereed

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10.1063/1.1355719

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title = "Piezo- and pyroelectricity of a polymer-foam space-charge electret",

abstract = "Charged closed-cell polypropylene polymer foams are highly sensitive and broadband piezoelectric materials with a quasistatic piezoelectric d33 coefficient about 250 pC/N and a dynamic d33 coefficient of 140 pC/N at 600 kHz. The piezoelectric coefficient is much larger than that of ferroelectric polymers, like polyvinylidene fluoride, and compares favorably with ferroelectric ceramics, such as lead zirconate titanate. The pyroelectric coefficient p3=0.25 μC/m2 K is small in comparison to ferroelectric polymers and ferroelectric ceramics. The low density, small pyroelectric coefficient and high piezoelectric sensitivity make charged polymer foams attractive for a wide range of sensor and transducer applications in acoustics, air-borne ultrasound, medical diagnostics, and nondestructive testing.",

author = "G. Neaugschwandtner and R. Schw{\"o}diauer and Simona Bauer-Gogonea and Siegfried Bauer and Mika Paajanen and Jukka Lekkala",

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T1 - Piezo- and pyroelectricity of a polymer-foam space-charge electret

AU - Neaugschwandtner, G.

AU - Schwödiauer, R.

AU - Bauer-Gogonea, Simona

AU - Bauer, Siegfried

AU - Paajanen, Mika

AU - Lekkala, Jukka

PY - 2001

Y1 - 2001

N2 - Charged closed-cell polypropylene polymer foams are highly sensitive and broadband piezoelectric materials with a quasistatic piezoelectric d33 coefficient about 250 pC/N and a dynamic d33 coefficient of 140 pC/N at 600 kHz. The piezoelectric coefficient is much larger than that of ferroelectric polymers, like polyvinylidene fluoride, and compares favorably with ferroelectric ceramics, such as lead zirconate titanate. The pyroelectric coefficient p3=0.25 μC/m2 K is small in comparison to ferroelectric polymers and ferroelectric ceramics. The low density, small pyroelectric coefficient and high piezoelectric sensitivity make charged polymer foams attractive for a wide range of sensor and transducer applications in acoustics, air-borne ultrasound, medical diagnostics, and nondestructive testing.

AB - Charged closed-cell polypropylene polymer foams are highly sensitive and broadband piezoelectric materials with a quasistatic piezoelectric d33 coefficient about 250 pC/N and a dynamic d33 coefficient of 140 pC/N at 600 kHz. The piezoelectric coefficient is much larger than that of ferroelectric polymers, like polyvinylidene fluoride, and compares favorably with ferroelectric ceramics, such as lead zirconate titanate. The pyroelectric coefficient p3=0.25 μC/m2 K is small in comparison to ferroelectric polymers and ferroelectric ceramics. The low density, small pyroelectric coefficient and high piezoelectric sensitivity make charged polymer foams attractive for a wide range of sensor and transducer applications in acoustics, air-borne ultrasound, medical diagnostics, and nondestructive testing.

U2 - 10.1063/1.1355719

DO - 10.1063/1.1355719

M3 - Article

SN - 0021-8979

VL - 89

SP - 4503

EP - 4511

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 8

ER -

Piezo- and pyroelectricity of a polymer-foam space-charge electret

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