Thermo-mechanical properties of fused borosilicate syntactic foams

  • Z. Salleh Universiti Kuala Lumpur, Technical Foundation Section, Malaysian Institute of Marine Engineering Technology, Dataran Industri Teknologi Kejuruteraan Marin, Bandar Teknologi Maritim, Jalan Pantai Remis, 32200 Lumut Perak, Malaysia, Phone: +605-690-9000; Fax: +605-690-9091
  • M. M. Islam Centre for Future Materials (CFM) and School of Mechanical and Electrical Engineering, Faculty of Health, Engineering and Sciences, University of Southern Queensland, Toowoomba, Queensland 4350, Australia.
  • J. A. Epaarachchi Centre for Future Materials (CFM) and School of Mechanical and Electrical Engineering, Faculty of Health, Engineering and Sciences, University of Southern Queensland, Toowoomba, Queensland 4350, Australia.
  • M. T. I. Khan Department of Advanced Technology Fusion, Faculty of Science and Engineering, Saga University, Saga 840-8502, JAPAN
Keywords: Coefficient, thermomechanical, composites, syntactic foam, porosity

Abstract

The coefficient thermal expansion, a (CTE) of glass microballoon/vinyl ester syntactic foam was determined using dimensional changes of a temperature gradient plot. The CTE was measured and found to be up to 53-63 % lower than the vinyl ester resin matrix when mixing with different weight percentages of the glass microballoon ranging from 2 wt.% to 10 wt.% using a thermomechanical analyzer (TMA). The results of CTE showed that it has a strong relationship with the syntactic foam density (r), radius ration (h) ,cavity porosity (fg) and matrix porosity (fm). Experimental results showed that the CTE decreases when glass microballoons are added into the composites measured at different temperatures ranging from 30 oC to 70 °C. The CTE from the experimental results were also compared with Turner’s modification model for composites for its suitability for thermal expansion of syntactic foams. The results indicate that Turner’s modification model exhibits a close correlation with the reduction up to 80 % of CTE based on experiment.

Published
2019-06-28
How to Cite
Salleh, Z., Islam, M. M., Epaarachchi, J. A., & Khan, M. T. I. (2019). Thermo-mechanical properties of fused borosilicate syntactic foams. Journal of Mechanical Engineering and Sciences, 13(2), 4898 - 4910. https://doi.org/10.15282/jmes.13.2.2019.10.0407
Section
Article