Mechanical and Fracture Properties of R-Glass Reinforced Composites with Pyrolysed Polysiloxane Resin as a Matrix

Abstract:

Mechanical and fracture properties of unidirectional composites reinforced with R-glass fibres and utilizing various commercially available polysiloxane resins as matrix precursors were investigated. As the matrix becomes more brittle after the pyrolysis the impact toughness and flexural strength of the composites fall. On the other hand, the shear modulus rises after the pyrolysis as the matrix becomes stiffer in shear. The appearance of fracture surfaces generated during the flexural strength at room temperature (RT) and elevated temperatures is discussed.

• Periodical: Key Engineering Materials (Volume 290)
• Pages: 344-347
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.290.344
• Online since: July 2005
• Authors: Miroslav Černý, D. Bednářová, Petr Glogar, Ján Dusza, Emőke Rudnayová
• Keywords: Glass Fiber Reinforcement, Mechanical Property, Pyrolysed Polysiloxane Resins, Unidirectional Composite

References

[1] M. Černý and P. Glogar.: J. Mat. Sci Lett. Vol. 17 (1998), No. 5, pp. 425ff.

[2] J. Dusza and M. Steen: Fractography and Fracture Mechanics Property Assessment of Advanced Structural Ceramics. International Materials Reviews, Vol. 44 (1999), pp.165-216.

DOI: 10.1179/095066099101528270