"An embodiment for an aircraft structure employs an array of aerodynamic riblets having a plurality of amorphous metal tips formed from material selected from the set of Vitreloey 105 (Zr: 52.5 Ti: 5 Cu: 17.9 Ni: 14.6 Al:10) or Vitreloy 106a (Zr: 58.5 Cu: 15.6 Ni: 12.8 Al: 10.3 Nb: 2.8). The amorphous metal tips are highly reflective for a decorative feature. Each tip includes a base and each tip is segmented in the flow direction. An elastomeric layer supports said amorphous metal tips in predetermined spaced relation with the base of each tip embedded in the elastomeric layer. A preformed appliqué which incorporates a metallic layer, a polymer support layer and an adhesive layer is deposited on the elastomeric layer opposite the tips to form a multilayer appliqué. The adhesive layer adheres the multilayer appliqué to a surface of the aircraft."
This comes from Boeing's "amorphous metal riblets" patent/applications. Keith stone mentioned this a while back I believe. Hey maybe the new Boeing 737 MAX or the 777X or the recent talk of a 757 replacement could use these....
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