Abstract
Composites based on barium-containing cordierite glass-ceramic matrices reinforced with 20 and 30 vol% SiC platelets were fabricated by hot-pressing. The ceramed specimens were tested in compression at 1000, 1200 and 1300 °C in air, parallel and perpendicular to the hot-pressing direction. Compressive fracture stresses up to 460 MPa were recorded at 1000 °C. Lower stresses were observed at 1200 and 1300 °C. The compressive stress decreased with increase in the SiC platelet content and with the compressive direction being parallel to the hot-pressing axis. The mechanical behaviour at high temperatures was related to the presence of a residual glassy phase within the cordierite matrix, as well as to the mode of the crack nucleation within the composites.
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Chaim, R., Munoz, A., Miranda, H. et al. High-temperature deformation of cordierite glass-ceramic/SiC platelet composites. JOURNAL OF MATERIALS SCIENCE 31, 3887–3891 (1996). https://doi.org/10.1007/BF00352806
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DOI: https://doi.org/10.1007/BF00352806