Abstract
Abstract B-doped SiC bodies were fabricated by spark plasma sintering at 2373 K, 50 MPa, 300 s in a vacuum and N2 atmosphere. The relative density of 1 mol% B doped-SiC body sintered in a vacuum and 5 mol% B doped-SiC body sintered in N2 atmosphere were 97 and 98%, respectively. The electrical conductivity of B-doped SiC bodies sintered in a vacuum with 0.5 mol% B and that with 1 mol% B sintered in N2 atmosphere showed semi-insulative conduction in the range of 3–5×10-3 S m-1 at room temperature. The thermal conductivity of B-doped SiC body at 0.5 at% B sintered in a vacuum were 185 W m-1 K-1 while that at 1 at% B sintered in N2 atmosphere were 177 W m-1 K-1 at room temperature.
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