Journal of Materials Science, Vol.34, No.7, 1505-1511, 1999
Mechanical properties of Si-Ti-C-O fibre-bonded ceramic using satin weave
Tensile and compressive properties of fibre-bonded ceramic (Tyrannohex) are reported along with the relationship between fibre orientation and flexural strength, in this study, Satin-Tyrannohex was produced by hot-pressing an oxidized satin-woven Tyranno fibre. The Satin-Tyrannohex showed the most well-balanced mechanical properties in all directions from the fibre axis at room temperature compared with crossplied- or 0 degrees/+/-45 degrees/90 degrees-Tyrannohex. The Satin-Tyrannohex maintained excellent strength up to 1400 degrees C, which is comparable to or greater than the strength at room temperature. Decreases in tensile and compressive strengths at 1500 degrees C could be due to an increase in the critical length of the fracture fibre and a decrease in the capability to support the fibre, respectively, because of the slight "softening" of the matrix.