Polarization and structural transitions of irradiated vinylidene fluoride-trifluoroethylene copolymer

Author

Balizer, E. ; DeReggi, A.S. ; Neumann, D.A. ; Bateman, F.

Author_Institution

Caderock Div., Naval Surface Warfare Center, West Bethesda, MD, USA

fYear

1999

fDate

1999

Firstpage

104

Abstract

The structure and polarization of the vinylidene fluoride-trifluoroethylene copolymer (50/50 mass ratio), a composition in the range that was first reported to show giant electrostriction after electron irradiation, has been studied by neutron scattering under an electric field. In addition, nonirradiated and irradiated samples were studied by thermal analysis and by the thermal pulse method. Both irradiation-induced melting-point and Curie-point depression and broadening were observed, but no field-induced reversible crystal-crystal conversion was observed in the irradiated specimens

Keywords

electron beam effects; electrostriction; ferroelectric Curie temperature; ferroelectric materials; melting point; neutron diffraction; organic insulating materials; polymer blends; polymer structure; thermal analysis; Curie-point broadening; Curie-point depression; VDF-TrFE copolymer; electric field; electron irradiation; giant electrostriction; irradiated vinylidene fluoride-trifluoroethylene copolymer; irradiation-induced melting-point; neutron scattering; polymer polarization; polymer structure; structural transitions; thermal analysis; thermal pulse method; Aluminum; Crystallization; Electron beams; Electrostriction; Ferroelectric materials; Lattices; NIST; Neutron spin echo; Polarization; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1999 Annual Report Conference on

Conference_Location

Austin, TX

Print_ISBN

0-7803-5414-1

Type

conf

DOI

10.1109/CEIDP.1999.804603

Filename

804603