0207575 - USMH-B 20000060 RIV SK eng C - Conference Paper (international conference)
Rudnayová, E. - Glogar, Petr - Kolář, František
Fracture behaviour of the unidirectional Nicalon - polysiloxane composites.
Proceedings of the International Conference FRACTOGRAPHY 2000. Košice: IMR SAS Košice, 2000 - (Parilák, L.), s. 185-192. ISBN 80-968468-3-3.
[Fractography 2000. Stará Lesná (SK), 15.10.2000-18.10.2000]
R&D Projects: GA ČR GA104/00/1140; GA ČR GA106/99/0096
Grant - others:GA SR(SK) 2/5162/98
Institutional research plan: CEZ:AV0Z3046908
Subject RIV: JH - Ceramics, Fire-Resistant Materials and Glass

Unidirectional Nicalon reinforced composites with matrix derived from commercially available polymethylphenylsiloxane resin were prepared by pyrolysis of cured prepregs at 700 - 1000řC. The fracture surface analyses showed that the toughening effect was the highest in case of specimens pyrolyzed at 800řC. The subsequent impregnation and repeated pyrolysis caused an embrittlement reflected in a lowered strength and work to fracture.
Permanent Link: http://hdl.handle.net/11104/0103142