Abstract

Although the quasicrystal theory has allowed an enormous development on the concepts of different fíelds of materials science and physics of the solid-state, the quasicrystalline phases are lacking by now of a technical application. How can this problem be solved if most of the alloys which present these structures are? e. g., too frágil?. However, the quasicrystalline structures have been reported in thin films of some alloys. some times they are reported as presented during the amorphous- crystal transition and some others as presented in the as-obtained thin films. In this paper, I present the cases of Ai-Mn. Al-Cu-Co-Si and Bi-Mn thin films and discuss the possibility of finding a technical application for these phases following the way the thin films indicate.