Volume 30 Issue 10
Oct.  2004
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Zhan Maosheng, Ding Naixiu. Magnetostrictive properties and AC electrical properties of activated carbon black filled polypropylene composites[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(10): 968-971. (in Chinese)
Citation: Zhan Maosheng, Ding Naixiu. Magnetostrictive properties and AC electrical properties of activated carbon black filled polypropylene composites[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(10): 968-971. (in Chinese)

Magnetostrictive properties and AC electrical properties of activated carbon black filled polypropylene composites

  • Received Date: 28 Apr 2004
  • Publish Date: 31 Oct 2004
  • Carbon black was activated and then filled into polypropylene to prepare composites, of which the alternating current (AC) electrical properties and the magnetostrictive properties were measured. It is shown that there are both conductive properties and magnetostrictive properties in the composites. The variation of AC electrical properties as a function of frequency shows that the conduction network of carbon black has been formed in the composites. Three phenomena could be observed during the course of the magnetostriction measurement. The first is that a relative large magnetostriction value of 115ppm is obtained. The second is that the magnetostriction is strongly dependent on the applied magnetic field and time interval. And the third is that obvious hysteresis effect appears,which is seldom found for material of TbxDy1-xFe2-y considered as typical magnetostrictive material.

     

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