Title of article :
Thermal properties of silicon carbide composites fabricated with chopped Tyranno® SiAlC fibres
Author/Authors :
Itatani، نويسنده , , Kiyoshi and Tanaka، نويسنده , , Tsuyoshi and Davies، نويسنده , , Ian J.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
8
From page :
703
To page :
710
Abstract :
Thermal diffusivity, a, and thermal conductivity, κ, between room temperature and 600 K were investigated for SiC composites containing 0–50 mass% of Tyranno® SiAlC (SA) fibre (mean length: 394 μm) hot-pressed at 1800 °C for 30 min under a pressure of 31 MPa. The monolithic SiC specimen possessed κ of 32.1 W m−1 K−1 at room temperature; no significant changes were found for the SiC composite containing ≤20 mass% of SA fibre addition. However, further increases in the amount of SA fibre to 50 mass% improved κ to a maximum of 56.3 W m−1 K−1. The value of a for the SiC composite containing 40 mass% of SA fibre was 0.185 cm2 s−1 at room temperature and decreased to 0.120 cm2 s−1 at 600 K. In addition, SiC composites using 40 mass% of SA fibre with a carbon interface of approximately 100 nm were fabricated. The effect of this interface on a and κ was marginal.
Keywords :
Thermal Properties , SiC , HOT PRESSING , thermal conductivity , Composites
Journal title :
Journal of the European Ceramic Society
Serial Year :
2006
Journal title :
Journal of the European Ceramic Society
Record number :
1408036
Link To Document :
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