Table 2.

Surface fraction in contact with solid ($f_1$) and air in pockets ($f_2$) calculated from SEM and measured by wetting.

Sample	Geometrical (from SEM)		Measured by Wetting
	$f_1$	$f_2$	$f_1$	$f_2$
St-60-45	0.25 ± 0.015	0.75 ± 0.045	0.087 ± 0.006	0.916 ± 0.07
St-60-45-L	0.25 ± 0.015	0.75 ± 0.045	0.168 ± 0.008	0.897 ± 0.07
St-60-30-L	0.50 ± 0.015	0.50 ± 0.030	0.186 ± 0.008	0.858 ± 0.07
St-100-30-L	0.70 ± 0.015	0.30 ± 0.015	0.349 ± 0.009	0.794 ± 0.06
Al-46-16	0.126 ± 0.008	0.874 ± 0.043	0.122 ± 0.012	0.842 ± 0.06