Title :
Properties and applications of ferroelectric single crystalline films of vinylidene fluoride and trifluoroethylene copolymers
Author :
Ohigashi, Hiroji
Author_Institution :
Dept. of Mater. Sci. & Eng., Yamagata Univ., Yonezawa, Japan
Abstract :
This paper describes research results obtained with a single crystal film of P(VDF/TrFE). The author studies the structure of the single crystal film and the mechanical and piezoelectric properties are measured over a wide temperature range. The molecular chain motions in the paraelectric phase are revealed by dielectric and X-ray scattering studies, and the application of single crystal films to shear ultrasonic wave transducers is considered
Keywords :
acoustic wave velocity; dielectric hysteresis; dielectric polarisation; ferroelectric thin films; permittivity; piezoelectricity; polymer blends; polymer films; X-ray scattering; copolymers; dielectric constant; ferroelectric single crystalline films; hysteresis loop; molecular chain motion; paraelectric phase; piezoelectric properties; remanent polarisation; shear ultrasonic wave transducers; sound velocity; trifluoroethylene; vinylidene fluoride; Crystallization; Dielectric measurements; Ferroelectric films; Ferroelectric materials; Mechanical factors; Mechanical variables measurement; Piezoelectric films; Temperature distribution; Ultrasonic variables measurement; X-ray scattering;
Conference_Titel :
Electrets, 1999. ISE 10. Proceedings. 10th International Symposium on
Conference_Location :
Athens
Print_ISBN :
0-7803-5025-1
DOI :
10.1109/ISE.1999.832122
