Application of ultrasonic spectroscopy to ferroelectric phase transition of VDF/TrFE copolymer

Hirotaka Okabe; Seiji Taki; Shiro Shichijyo1; Kazumi Matsushige1; Tetuo Takemura

doi:10.7567/JJAPS.25S1.64

Application of ultrasonic spectroscopy to ferroelectric phase transition of VDF/TrFE copolymer

Hirotaka Okabe, Seiji Taki, Shiro Shichijyo1, Kazumi Matsushige1, Tetuo Takemura

Applied Physics

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

10 Citations (Scopus)

Abstract

An ultrasonic spectroscopic measuring system for higher temperature use was constructed by utilizing PVDF transducers and polyimide buffers. The system was successfully applied to simultaneous observation of the changes in ultrasonic velocity and absorption in a wide frequency range upon the ferroelectric phase transition of a VDF/TrFE copolymer (54 VDF mol%). The results revealed that the absorption becomes the highest and the velocity shows a sharp bend around the transition temperature of about 66°C. Further, frequency dispersion was observed for the degree of absorption and the temperature change in velocities.

Original language	English
Pages (from-to)	64-66
Number of pages	3
Journal	Japanese Journal of Applied Physics
Volume	25
Issue number	S1
DOIs	https://doi.org/10.7567/JJAPS.25S1.64
Publication status	Published - Jan 1986

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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title = "Application of ultrasonic spectroscopy to ferroelectric phase transition of VDF/TrFE copolymer",

abstract = "An ultrasonic spectroscopic measuring system for higher temperature use was constructed by utilizing PVDF transducers and polyimide buffers. The system was successfully applied to simultaneous observation of the changes in ultrasonic velocity and absorption in a wide frequency range upon the ferroelectric phase transition of a VDF/TrFE copolymer (54 VDF mol%). The results revealed that the absorption becomes the highest and the velocity shows a sharp bend around the transition temperature of about 66°C. Further, frequency dispersion was observed for the degree of absorption and the temperature change in velocities.",

author = "Hirotaka Okabe and Seiji Taki and Shiro Shichijyo1 and Kazumi Matsushige1 and Tetuo Takemura",

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T1 - Application of ultrasonic spectroscopy to ferroelectric phase transition of VDF/TrFE copolymer

AU - Okabe, Hirotaka

AU - Taki, Seiji

AU - Shichijyo1, Shiro

AU - Matsushige1, Kazumi

AU - Takemura, Tetuo

PY - 1986/1

Y1 - 1986/1

N2 - An ultrasonic spectroscopic measuring system for higher temperature use was constructed by utilizing PVDF transducers and polyimide buffers. The system was successfully applied to simultaneous observation of the changes in ultrasonic velocity and absorption in a wide frequency range upon the ferroelectric phase transition of a VDF/TrFE copolymer (54 VDF mol%). The results revealed that the absorption becomes the highest and the velocity shows a sharp bend around the transition temperature of about 66°C. Further, frequency dispersion was observed for the degree of absorption and the temperature change in velocities.

AB - An ultrasonic spectroscopic measuring system for higher temperature use was constructed by utilizing PVDF transducers and polyimide buffers. The system was successfully applied to simultaneous observation of the changes in ultrasonic velocity and absorption in a wide frequency range upon the ferroelectric phase transition of a VDF/TrFE copolymer (54 VDF mol%). The results revealed that the absorption becomes the highest and the velocity shows a sharp bend around the transition temperature of about 66°C. Further, frequency dispersion was observed for the degree of absorption and the temperature change in velocities.

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JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - S1

ER -

Application of ultrasonic spectroscopy to ferroelectric phase transition of VDF/TrFE copolymer

Abstract

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