Institute of Physics of Materials AS CR, v. v. i. > Projects > Development of new matrix types based on pyrolysed resins for composites reinforced with ceramic fibres

Development of new matrix types based on pyrolysed resins for composites reinforced with ceramic fibres

Co-investigatorIng. Zdeněk Chlup, Ph.D.
Number of ProjectGA106/09/1101
AgencyGrantová agentura České republiky
Duration2008-12-31 - 2011-12-30

Anotace
New polymer precursors for ceramic fibre composites with pyrolysed matrix will be developed. As precursors,
resins based on siloxane with varying content of carbon per silicon will be studied. Also oxygen-free
carbosilanes, silazanes, boron containing siloxanes and their copolymers will be investigated in order to design
an optimal precursor with good technological parameters in the polymer state and also with thermally stable
amorphous structure and oxidation stability in the pyrolysed state. Composite materials consisting of such
precursors and ceramic fibres Nextel 720 will be made by pyrolysis up to 1000°C. Their properties relevant to
the intended high temperature applications (thermal stability of microstructure, oxidation resistance,
mechanical properties up to 1400°C, fracture toughness) will be investigated. Also fractographic analysis will
help to optimize the processing parameters of the composite manufacture.

2012

Halasová M., Chlup Z., Strachota A., Černý M., Dlouhý I.: Mechanical response of novel SiOC glasses to high temperature exposition. J. Eur. Ceram. Soc. 32 (2012) 4489-4495

Černý M., Strachota A., Chlup Z., Sucharda Z., Žaloudková M., Glogar P., Kuběna I.: Strength, Elasticity and Failure of Composites with Pyrolyzed Matrices Based on Polymethylsiloxane Resins with Optimized Ratio of D and T Components. J. Composite Mater. 47 (2012) 1055-1066


2011

Strachota A., Černý M., Glogar P., Sucharda Z., Havelcová M., Chlup Z., Dlouhý I., Kozák V.: Preparation and optimalization of silicon oxycarbide composites toughened by inorganic fibers by pyrolysis of precursor composites with siloxane matrix. Acta Phys. Pol. A 120 (2011) 326-330

Chlup Z., Černý M., Strachota A., Kozák V.: Properties of modified polysiloxane based ceramic matrix for long fibre reinforced composite materials. Plastics, Rubber and Composites 40 (2011) 380-385

Chlup Z., Černý M., Strachota A., Dlouhý I.: Role of pyrolysis conditions on fracture behaviour of fibre reinforced Composites. Key Eng. Mater. 465 (2011) 455-458