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The present study evaluates the mechanical properties and fracture behaviour of a series of Hi-Nicalon (SiC) fibre reinforced Si(3)N(4) matrix composites. The samples were fabricated by a slurry infiltration process of unidirectional fibre performs. Densification was performed by hot-pressing at two temperatures : 1550 C and 1600 C under 27 MPa. The fibre-matrix interface was engineered by precoating the fibres with 3 different thicknesses of pyrolytic carbon : 100, 200 and 400 nm. The mechanical properties of these composites were investigated at room temperature under tensile loading and compared with uncoated fibre reinforced Si(3)N(4) matrix composites.

Additional information

Authors: OLIVIER C, JRC Petten (NL);VEYRET J B, JRC Petten (NL);VIDAL-SETIF M H, ONERA, Direction des Matériaux, Chatillon (FR)
Bibliographic Reference: Paper presented: International Conference on Ceramic and Metal Matrix Composites, San Sebastian (ES), September 9-12, 1996
Availability: Available from (1) as Paper EN 40258 ORA
Record Number: 199710033 / Last updated on: 1997-02-26
Original language: en
Available languages: en