Growth of a textured quasicrystalline phase in Ti-Ni-Zr films prepared by pulsed laser deposition

Autor: Brien, Valerie, Dauscher, A., Weisbecker, P., Machizaud, F.
Rok vydání: 2020
Předmět:
Zdroj: Applied physics. A, Materials science & processing, Springer Verlag, 2003, 76 (2), pp.187-195
Druh dokumentu: Working Paper
DOI: 10.1007/s003390201405
Popis: The preparation in thin film form of the known icosahedral phase in Ti-Ni-Zr bulk alloys has been investigated as a function of substrate temperature. Films were deposited by Pulsed Laser Deposition on sapphire substrates at temperatures ranging from room temperature to 350$^\circ$C. Morphological and structural modifications have been followed by grazing incidence and $\theta$-2$\theta$ X-ray diffraction, transmission electron diffraction and imaging. Chemical composition has been analysed by Electron Probe Micro-Analysis. The in-depth variation of composition has been studied by Secondary Neutral Mass Spectroscopy. We show that Pulsed Laser Deposition at 275$^\circ$C makes the formation of a 1 m thick film of Ti-Ni-Zr quasicrystalline textured nanocrystallites possible.
Databáze: arXiv