TY  - GEN
A1  - Nguyen, Quyet Doan
A1  - Gerhard, Reimund
T1  - LDPE/MgO Nanocomposite Dielectrics for Electrical-Insulation and Ferroelectret-Transducer Applications
T2  - 2018 IEEE 2nd International Conference on Dielectrics (ICD)
N2  - Published results on LDPE/MgO nanocomposites (3wt%) show that they promise to be good electrical-insulation materials. In this work, the nanocomposites are examined as a potential (ferro-)electret material as well. Isothermal surface-potential decay measurements show that charged LDPE/MgO films still exhibit significant surface potentials after heating for 4 hours at 80 degrees C, which suggests good capabilities of LDPE/MgO nanocomposites to hold electric charges of both polarities. Open-tubular-channel ferroelectrets prepared from LDPE/MgO nanocomposite films show significant piezoelectricity with d(33) coefficients of about 20 pC/N after charging and are stable up to temperatures of at least 80 degrees C. Thus LDPE/MgO nanocomposites may become available as a new ferroelectret material. To increase their d(33) coefficients, it is desirable to optimize the charging conditions and the ferroelectret structure.
KW  - ferroelectrets
KW  - LDPE nanocomposites
KW  - electroacoustic probing
KW  - space-charge and polarization profiles
KW  - thermally stimulated discharge
Y1  - 2018
SN  - 978-1-5386-6389-9
SN  - 978-1-5386-6388-2
SN  - 978-1-5386-6390-5
PB  - IEEE
CY  - New York
ER  -