In Fig. 6 can be observed that there is a tendency to decrease thecontact angle as the a-Al grain size decreases. However, samplesSR7, which had an important crystallographic texture at both ribbon surfaces with columnar microstructure do not follow theobserved tendency for the other samples. Moreover, for all theribbon samples, the WS surface that has a little difference in themicrostructure respect to the GS surface, also showed higher valuesof the contact angle that the GS surface.