Open-circuit Thermally Stimulated Currents in LDPE/Al2O3 Nanocomposite
Paper in proceedings, 2016

Polyethylene doped with nanoparticles of inorganic oxides has been studied extensively during the last decade, aiming at its possible use as suitable material in insulation of high voltage direct current cables. To elucidate electrical properties of such material, thermally stimulated discharge (TSD) currents are analyzed in samples of low-density polyethylene (LDPE) filled with Al2O3 nanoparticles and compared with the response of pure LDPE. The latter exhibits a presence of two peaks in the TSD spectrum, which yield levels of activation energies close to earlier published data. For LDPE nanocomposite, a single broad peak is found instead, which when decomposed into a number of single peaks yields higher and broadly spreading activation energies. This indicates a presence of deep traps in the nanocomposite and explains significant reduction of its DC conductivity and strong suppression of space charge accumulation, as compared with unfilled LDPE.

zutani t

journal of applied physics

p2408

zutani t

v48

space-charge

electrets

density polyethylene

1977

1982

japanese journal of applied physics part 1-regular papers short notes &

Author

Tuan Anh Hoang

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Q. D. Nguyen

University of Potsdam

W. Wirges

University of Potsdam

R. Gerhard

University of Potsdam

Yuriy Serdyuk

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Stanislaw Gubanski

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

2016 Ieee Conference on Electrical Insulation and Dielectric Phenomena

0084-9162 (ISSN)

611-614

Subject Categories

Materials Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering

Areas of Advance

Energy

DOI

10.1109/CEIDP.2016.7785595

ISBN

978-1-5090-4654-6

More information

Latest update

3/19/2018