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arXiv · 2009.14646

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

Valerie Brien·A. Dauscher·P. Weisbecker·F. Machizaud
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Abstract

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.

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Valerie Brien, A. Dauscher, P. Weisbecker, F. Machizaud. 2020-09-30. Growth of a textured quasicrystalline phase in Ti-Ni-Zr films prepared by pulsed laser deposition. https://doi.org/10.1007/s003390201405

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