  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.
