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Effect of Low Field Magnetic Annealing on the Viscoleastic Behavior of a Structural Epoxy

[+] Author Affiliations
Mehran Tehrani, Marwan Al-Haik

University of New Mexico, Albuquerque, NM

Hamid Garmestani, Dongsheng Li

Georgia Institute of Technology, Atlanta, GA

Paper No. IMECE2009-10635, pp. 127-134; 8 pages
doi:10.1115/IMECE2009-10635
From:
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 14: Processing and Engineering Applications of Novel Materials
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4387-1 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME

abstract

In this study the effect of moderate magnetic fields on the microstructure of a structural epoxy system was investigated. The changes in the microstructure have been investigated quantitatively using wide angle x-ray diffraction (WAXD) and pole figure analysis. The mechanical properties (modulus, hardness) of the epoxy were probed using nanoindentation. Using the continuous complex compliance analysis, the effect of the low magnetic fields on the viscoelastic properties of the epoxy was investigated. The phase lag angle was measured for both neat and magnetically annealed polymer. The results of this investigation reveal that under low magnetic fields both the quasi-static mechanical properties together with the viscoelastic behavior of the epoxy have been improved.

Copyright © 2009 by ASME

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