"http://www.isvav.cz/projectDetail.do?rowId=GA106/02/0177"^^ . . . . "\u00A0 Basic parameters of the curing process of 8 commercially available polysiloxane resins from 3 suppliers as well as their weight losses during pyrolysis in nitrogen to 1200\u00B0C were established. These properties are vital for employing the resins as matri"@en . . . . "10"^^ . "10"^^ . "1"^^ . . . "V\u00FDvoj a optimalizace procesu p\u0159\u00EDpravy tepeln\u011B odoln\u00FDch vl\u00E1knov\u00FDch kompozit\u016F s keramickou matric\u00ED" . "GA106/02/0177" . . "Byly zji\u0161t\u011Bny z\u00E1kladn\u00ED parametry procesu vytvrzov\u00E1n\u00ED 8 vzork\u016F komer\u010Dn\u011B dostupn\u00FDch polysiloxanov\u00FDch prysky\u0159ic od 3 v\u00FDrobc\u016F, jako\u017E i hmotnostn\u00ED \u00FAbytky b\u011Bhem jejich pyrol\u00FDzy v\u00A0dus\u00EDku do 1200\u00B0C. Tyto vlastnosti jsou d\u016Fle\u017Eit\u00E9 p\u0159i pou\u017Eit\u00ED prysky\u0159ic jako prekur"@cs . "2"^^ . . . "Fibrous composites with ceramic matrix are prospective as structural materials for high temperature applications in an oxidative environment because they are tougher than brittle technical ceramics. The project aims at optimizing the manufacturing process of heat-resistant fibrous composites with a ceramic matrix derived by pyrolysis from commercially available polysiloxane resins. Kinetics of chemorheological behavior of the resins and evolution of their dielectric properties during curing will be pursued. For this purpose, measurement devices will be designed and developed. Dielectric analysis will be employed for optimization and partial automation or the composite curing process with the aim to achieve its satisfactory mechanical properties and oxidation resistance at elevated temperatures. Ceramic fibers (Nicalon and Nextel) will be utilized to reinforce the composites with the design resistance up to 1000\u00B0C, while carbon and S-glass fibers will be employed for lower temperatures."@en . "0"^^ . . "Neuvedeno."@en . . . . . . . "Development and optimization of manufacture process for heat resistant fibre reinforced ceramic matrix composites"@en . "Vl\u00E1knov\u00E9 kompozity s keramickou matric\u00ED jsou perpektivn\u00EDm typem konstruk\u010Dn\u00EDch materi\u00E1l\u016F pou\u017Eiteln\u00FDch za vysok\u00FDch teplot a v oxida\u010Dn\u00EDm prost\u0159ed\u00ED a vyzna\u010Duj\u00EDc\u00ED se v\u011Bt\u0161\u00ED hou\u017Eevnatost\u00ED ne\u017E k\u0159ehk\u00E1 technick\u00E1 keramika. C\u00EDlem projektu je optimalizovat proces p\u0159\u00EDpravy teplotn\u011B odoln\u00FDch vl\u00E1knov\u00FDch kompozit\u016F s keramickou matric\u00ED z\u00EDskanou pyrolyzou komer\u010Dn\u011B dostupn\u00FDch polysiloxanov\u00FDch prysky\u0159ic. Bude studov\u00E1na kinetika chemoreologick\u00E9ho chov\u00E1n\u00ED prysky\u0159ic a v\u00FDvoj jej\u00EDch dielektrick\u00FDch vlastnost\u00ED v pr\u016Fb\u011Bhu vytvrzov\u00E1n\u00ED. Budou vyvinuty p\u0159\u00EDstroje pro m\u011B\u0159en\u00ED viskozity a permitivity vytvrzovan\u00E9ho prekurzoru matrice. Dielektrick\u00E1 anal\u00FDza bude vyu\u017Eita k optimalizaci a \u010D\u00E1ste\u010Dn\u00E9 automatizaci procesu vytvrzov\u00E1n\u00ED kompozitu tak, aby v\u00FDsledn\u00FD pyrolyzovan\u00FD kompozit m\u011Bl vyhovuj\u00EDc\u00ED mechanick\u00E9 vlastnosti a oxida\u010Dn\u00ED odolnost p\u0159i zv\u00FD\u0161en\u00FDch teplot\u00E1ch. Jako v\u00FDztu\u017E kompozit\u016F s o\u010Dek\u00E1vanou odolnost\u00ED do 1000\u00B0C budou pou\u017Eita keramick\u00E1 vl\u00E1kna (Nicalon a Nextel), pro ni\u017E\u0161\u00ED teploty vl\u00E1kna uhl\u00EDkov\u00E1 a S-sklo. Bude zkoum\u00E1na souvislost" . . . "2008-06-02+02:00"^^ .