Composites with tunable electrical, thermal and mechanical properties: An approach to multifunctionality

V. C. Shunmugasamy, D. Pinisetty, N. Gupta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Vinyl ester matrix syntactic foams filled with hollow glass microballoons (GMBs) are investigated for the possibility of simultaneously tuning their electrical, thermal and mechanical properties. Six different compositions have been investigated to develop a relation between the dielectric constant and hollow particle parameters such as volume fraction and radius ratio. The dielectric constant of syntactic foams decreased with increase in volume fraction and increased with increase in the radius ratio of MBs. To further elucidate the effect of volume fraction and radius ratio on the dielectric constant, a parametric study has been performed based on a theoretical model developed for syntactic foams. This study suggested that several compositions of syntactic foams can be developed to obtain same dielectric constant but different coefficient of thermal expansion, elastic modulus and density. These results provide a unique approach of tailoring the dielectric constant independent of the density or other mechanical and thermal properties of syntactic foams. Simultaneous tailoring of two or more properties of syntactic foams can help in developing multifunctional materials.

Original languageEnglish (US)
Title of host publicationProceedings of the American Society for Composites - 29th Technical Conference, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting
PublisherDEStech Publications
ISBN (Electronic)9781605951249
StatePublished - 2014
Event29th Annual Technical Conference of the American Society for Composites, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting - La Jolla, San Diego, United States
Duration: Sep 8 2014Sep 10 2014

Publication series

NameProceedings of the American Society for Composites - 29th Technical Conference, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting

Other

Other29th Annual Technical Conference of the American Society for Composites, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting
CountryUnited States
CityLa Jolla, San Diego
Period9/8/149/10/14

ASJC Scopus subject areas

  • Ceramics and Composites

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