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

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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)64-66
Number of pages3
JournalJapanese Journal of Applied Physics
Volume25
Issue numberS1
DOIs
Publication statusPublished - Jan 1 1986

Fingerprint

ultrasonic spectroscopy
Ferroelectric materials
copolymers
Copolymers
Ultrasonic absorption
Ultrasonics
Phase transitions
Spectroscopy
Ultrasonic velocity
ultrasonics
Polyimides
Superconducting transition temperature
Transducers
polyimides
Temperature
transducers
buffers
frequency ranges
transition temperature
temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Application of ultrasonic spectroscopy to ferroelectric phase transition of VDF/TrFE copolymer. / Okabe, Hirotaka; Taki, Seiji; Shichijyo1, Shiro; Matsushige1, Kazumi; Takemura, Tetuo.

In: Japanese Journal of Applied Physics, Vol. 25, No. S1, 01.01.1986, p. 64-66.

Research output: Contribution to journalArticle

Okabe, Hirotaka ; Taki, Seiji ; Shichijyo1, Shiro ; Matsushige1, Kazumi ; Takemura, Tetuo. / Application of ultrasonic spectroscopy to ferroelectric phase transition of VDF/TrFE copolymer. In: Japanese Journal of Applied Physics. 1986 ; Vol. 25, No. S1. pp. 64-66.
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