Fracture Mechanics of Ceramics

0177832 - UFM-A 20023030 RIV US eng M - Část monografie knihy
Dlouhý, Ivo - Reinisch, M. - Boccaccini, A. R.
Fracture toughness and work of fracture of SiC-fibre reinforced glass matrix composite.
Fracture Mechanics of Ceramics. Vol. 1. New York: Kluwer Academic/Plenum Publishers, 2002, s. 203-212
Grant CEP: GA ČR GV101/96/K264; GA AV ČR IAA2041701
Výzkumný záměr: CEZ:AV0Z2041904
Klíčová slova: glass matrix composites * silicon carbide fibers * fracturetoughness
Kód oboru RIV: JH - Keramika, žáruvzdorné materiály a skla

The applicability of the chevron-notch technique for changes monitoring in fracture behaviour of fibre/glass matrix composites has been investigated. A commercial SiC-fibre reinforced glass matrix composite was aged in argon at temperatures in the range 500-700°C for duration of up to 1000 hrs. The mechanical properties of aged samples were valuated at room temperature by using four-point flexure strength and three-point flexure chevron notch techniques. For identification of the unstable fracture onset an acoustic emission technique was applied. The fracture toughness values in the range 19-26 MPam1/2 were little affected by the ageing conditions except for the most severe ageing conditions. The procedure for the work of fracture determination and its dependence on ageing condition is presented.
Trvalý link: http://hdl.handle.net/11104/0074736