The additions of previous termTi to CuAgnext term eutectic is known to strongly promote previous termwetting on alumina.next term However, it is still not clear whether this improvement is due to newly formed previous termreactionnext term products or to previous termadsorption.next term The aim of this study is to clarify the previous termrolenext term of interfacial previous termreactions on wettingnext term using new data generated by sessile drop experiments.