Chapter 25. Active/Inactive Fillers for Blackglas™ /Nextel™ 312 (BN) Composites

  1. Don Bray
  1. M. Allahverdi1,
  2. W. R. Cannon1,
  3. S. C. Danforth1,
  4. M. Erdal2 and
  5. S. Guceri2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294482.ch25

22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 19, Issue 3

22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 19, Issue 3

How to Cite

Allahverdi, M., Cannon, W. R., Danforth, S. C., Erdal, M. and Guceri, S. (1988) Active/Inactive Fillers for Blackglas™ /Nextel™ 312 (BN) Composites, in 22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 19, Issue 3 (ed D. Bray), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294482.ch25

Author Information

  1. 1

    Rutgers University, Piscataway, NJ 08854 S. H. Yu, St. Gobain/Norton, Northborough, MA 01532

  2. 2

    University of Illinois at Chicago, Chicago IL 60607-7022

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780470375587

Online ISBN: 9780470294482

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Keywords:

  • titanium;
  • pyrolysis;
  • microcracks;
  • polymer;
  • materials

Summary

Titanium, boron, titanium boride and titanium silicide were examined by TGA up to 1000°C in nitrogen to determine their reactivity as active fillers for Blackglas™ /Nextel™ composites. Boron with 16% volume gain (due to partial nitridation) exhibits the highest volume gain to compensate for the shrinkage of Blackglas™ monomer upon pyrolysis.

As an inactive filler, SiC can also reduce the shrinkage of Blackglas™ composites. Four suspensions of 10, 20, 30 and 40 vol.% SiC were made to fabricate prepregs using Nextel™ 312(BN) fabric. Panels were laminated at 150°C and then pyrolyzed at 1000°C for 1 hour. Six cycles of infiltration were applied to minimize the porosity caused by monomer shrinkage. The weight gain of the samples upon infiltration cycle suggests that the number of pyrolysis cycles can be reduced by incorporation of SiC powder.