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Table 2 Composition of micron-sized SiC, nano-sized Si-SiC composite particle, and activated carbon for preparing sintered SiC pellets, and their relative densities and Vicker’s hardness (sintering temp. 1800 °C, holding time 1 min, pressure 80 MPa)

From: Sintering Behavior of Spark Plasma Sintered SiC with Si-SiC Composite Nanoparticles Prepared by Thermal DC Plasma Process

Sample Composition (wt%) Relative density (%) Vicker’s hardness (GPa)
Micron-sized SiC Nano-sized SiC Activated carbon
a 95 5   85.9 21.1
b 90 10   88.2 21.2
c 85 15   85.6 16.6
d 89.9 10 0.1 93.1 25.2
e 88.8 10 0.2 97.1 31.4