Abstract
Phase transformation was induced by ball milling and annealing of Ti75–Sn25 powder. HCP solid solution was induced by Ball milling and yielded a compressed lattice parameters a=2.929Å; c=4.780Å and c/a=1.63. Upon annealing in Ar at 700°C, Ti3Sn intermetallic with lattice parameters a=5.916Å; c=4.764Å with (c/a=0.80) was detected. Subsequent TGA analysis of HCP milled Ti–Sn and Ti3Sn intermetallic in air have resulted in tetragonal oxynitride powders with lattice parameters a=4.985Å; c=2.962Å, c/a=0.594 for the former and a=4.582Å; c=2.953Å and c/a=0.644 for the latter, respectively. The powder morphology was monitored by the high-resolution transmission electron microscopy while the roughness of the milled was analysed by the atomic force microscopy. Phase transformation was monitored by the X-ray diffraction and complemented by the Raman spectroscopy.
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