An analysis for spreading kinetics of liquid metals on solids

Silicon carbide-based foams derived from foamed SiC-filled phenolic resin by reactive infiltration of silicon

“…According to Darcy' s law and modify Washburn equation [27,28], ℎ = 2 / , where h is infiltration height, δ is surface tension, θ is contact angle, ρ is density. In the present research, δ=0.72 N/m at 1550 °C, θ=22 ° for silicon versus carbon in vacuum, ρ=2.55 g/cm 3 at 1550 °C [29].…”

Capillary infiltration studies of liquids into 3D-stitched C–C preforms

“…Maximum capillary height h ∞ which may be attained by a solvent by capillary rise can be determined. 16,17 h ∞ = 2σ cosθ ρgr (14) h ∞ for ethyl alcohol for different pore radii are listed in Table 4. It is evident that heights (17.0, 0.447, and 1.08 m) estimated for radii 0.274, 10.4 and 4.3 m respectively are much higher than the experimental value (0.135 m).…”

Capillary infiltration studies of liquids into 3D-stitched C–C preforms

“…(5), it is evident that the angle of contact between SiC layer and silicon plays an important role for silicon infiltration. The angle of contact varies from 0 to 22 • under vacuum and also varies with reaction time 8,12,13 .…”