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Journal of Materials Science

, Volume 44, Issue 6, pp 1456–1461 | Cite as

Microstructure–properties relationship in ceramic–elastomer composites with 3D connectivity of phases

  • Kamil Babski
  • Anna Boczkowska
  • Krzysztof J. Kurzydlowski
Syntactic and Composite Foams

Abstract

The ceramic–elastomer composites with 3D phase connectivity were tested under compressive loads. Such composites exhibit high initial strength and stiffness with the ability to sustain large deformations. Samples of the composites were made of porous SiO2 ceramic matrix infiltrated by polyurethane elastomer. The ceramic matrix preforms used differed in the porosity and three different composite microstructures have been obtained. Selected parameters of microstructure composites were evaluated using image analysis. The compressive strength and capacity for energy absorption are characterized under various strain rates (0.001–235 s−1). It was found that stress–strain characteristic depends on the strain rate and the specific interface area (Sv). Pore size and the specific interface area have a strong effect on the compressive strength of composites and these parameters can be used for tailoring their mechanical properties. The acoustic emission was applied to identify stages in the process of microstructure damage during compression. The interpretation of damage stages was proposed, which also explains the character of the stress–strain curves.

Keywords

Compressive Strength Acoustic Emission Aluminium Foam Porous Ceramic Maximum Compressive Stress 

Notes

Acknowledgements

Authors are thankful to Prof. Mikołaj Szafran from Warsaw University of Technology, Faculty of Chemistry for processing the porous SiO2 ceramics, Dr. Jerzy Schmidt from Krakow University of Technology for acoustic emission experiments, and Dr. Dariusz Rudnik and Piotr Lasota from Motor Transport Institute in Warsaw for providing access to the Instron Dynatup testing machine. This work was supported by Polish State Committee for Scientific Research, grant no. 3T08E 009 28.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Kamil Babski
    • 1
  • Anna Boczkowska
    • 1
  • Krzysztof J. Kurzydlowski
    • 1
  1. 1.Faculty of Materiale Science and EngineeringWarsaw University of TechnologyWarsawPoland

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