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Effect of low-density filler on mechanical properties of syntactic foams of cyanate ester

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Abstract

Syntactic foam composites of cyanate ester with varying volume fractions of resin and glass microballoon were processed and evaluated for tensile, flexural and compressive properties. The effect of nature and volume fraction of microballoon on the mechanical properties was studied. The mechanical properties showed a gradual decrease in strength with increase in volume fraction of microballoon. The specific strength values also manifested a similar order. A similar behaviour was observed for syntactic foams with microballoons of varying true density. The properties increased proportional to the strength of the microballoon in resin-rich systems implying a strong microballoon-resin interface, corroborated by Scanning Electron Microscopy studies. The compressive modulus showed a decreasing trend with enhanced microballoon loading.

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Acknowledgements

The authors acknowledge Director, VSSC for granting permission to publish this paper. The assistance given by Ms. Sirisha (MCD) is acknowledged. Bibin John thanks Indian Space Research Organisation for a Fellowship.

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Authors and Affiliations

  1. Propellants and Special Chemicals Group, Vikram Sarabhai Space Centre, Trivandrum, 695022, India

    Bibin John, C. P. Reghunadhan Nair, K. Ambika Devi & K. N. Ninan

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  1. Bibin John
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  2. C. P. Reghunadhan Nair
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  3. K. Ambika Devi
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  4. K. N. Ninan
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Correspondence to C. P. Reghunadhan Nair.

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John, B., Nair, C.P.R., Devi, K.A. et al. Effect of low-density filler on mechanical properties of syntactic foams of cyanate ester. J Mater Sci 42, 5398–5405 (2007). https://doi.org/10.1007/s10853-006-0778-0

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  • DOI: https://doi.org/10.1007/s10853-006-0778-0

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