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The Electrical Resistivity of B4C Modified Phenol-Formaldehyde Resin Matrix Composite Materials Pyrolyzed at Different Temperatures

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Abstract:

The electrical resistivity is studied when B4C modified phenol-formaldehyde (PF) resin is heat-treated at temperatures of 300-1500 °C, and then the X-ray diffraction (XRD) spectra are also investigated. The results indicate that the electrical resistivity is elevated with the increase of pyrolytic temperature of PF resin. The addition of B4C decreases the electrical resistivity efficiently when the temperature is range of 700-1000 °C. Especially the composite is treated at tmperatures of 1000-1500 °C. The analysis of XRD spectra suggests that the addition of B4C promotes the arrangement of residue at high temperature. The arrangement reaction has not a direct effect on the electrical resistivity.

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Periodical:

Advanced Materials Research (Volume 583)

Pages:

36-39

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.583.36

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Online since:

October 2012

Authors:

Hai Yun Jiang, Ji Gang Wang, Shen Qing Wu, Wei Li Zhang

Keywords:

B4C, Electrical Resistivity, Heat Treatment, Phenol-Formaldehyde, Pyrolyze

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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