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Title: Effect of Fe{sub 3}O{sub 4} nanoparticles on space charge distribution in propylene carbonate under impulse voltage

Addition of nanoparticles of the ferromagnetic material Fe{sub 3}O{sub 4} can increase the positive impulse breakdown voltage of propylene carbonate by 11.65%. To further investigate the effect of ferromagnetic nanoparticles on the space charge distribution in the discharge process, the present work set up a Kerr electro-optic field mapping measurement system using an array photodetector to carry out time-continuous measurement of the electric field and space charge distribution in propylene carbonate before and after modification. Test results show that fast electrons can be captured by Fe{sub 3}O{sub 4} nanoparticles and converted into relatively slow, negatively charged particles, inhibiting the generation and transportation of the space charge, especially the negative space charge.
Authors:
; ; ; ;  [1]
  1. State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Shapingba, Chongqing 400044 (China)
Publication Date:
OSTI Identifier:
22492233
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 5; Journal Issue: 12; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CAPTURE; CARBONIC ACID ESTERS; CHARGED PARTICLES; ELECTRIC FIELDS; ELECTRIC POTENTIAL; ELECTRONS; FERRITES; FERROMAGNETIC MATERIALS; IRON OXIDES; MAPPING; MODIFICATIONS; NANOPARTICLES; SPACE CHARGE