Early oxidation behavior of Si-coated titanium

Data on the early oxidation of SiO2-coated pure Ti and bulk Ti5Si3 at 800 °C

“…1 , Fig. 2 ) showed similar layers to a Si-coated Ti specimen also oxidized at 800 °C for 2 h [1] . A compact and polycrystalline layer, identified as Ti 5 Si 3 through EDS mapping and selected area electron diffraction patterns, was observed adjacent to the Ti metal.…”

“…The presence of the Ti 5 Si 3 layer between the internal oxide and Ti substrate, identified through EDS mapping, corresponded to regions with a thin internal nanocrystalline oxide scale ( Fig. 4 ), which was similar to Si-coated Ti oxidized specimens [1] . In regions where the Ti 5 Si 3 layer was no longer observed, the internal oxide was much thicker ( Fig.…”

“…Delamination of the SiO 2 layer was observed in some areas at the SiO 2 /Ti 5 Si 3 interface ( Fig. 2 a); however, in contrast with Si-coated Ti specimens in the accompanied study [1] , no outward bowing of the SiO 2 layer was observed.

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“…3 ) showed a two-layer scale: the outermost scale was Ti-rich and corresponded to TiO 2 and the internal scale showed mixed Ti-rich and Si-rich regions, corresponding to TiO 2 and SiO 2 . In contrast with oxidation of Si-coated Ti [1] , no regular patterning of alternating SiO 2 and TiO 2 layers was observed for oxidized Ti 5 Si 3 .

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“…Specimens were characterized using transmission electron microscopy, scanning transmission electron microscopy, and energy dispersive spectroscopy. The data in this article accompanies research article “Early oxidation behavior of Si-coated titanium” [1] , which contains further discussion. The data for this article is hosted at the Materials Commons data repository and is available for download at https://materialscommons.org/mcapp/#/data/dataset/b8bc8038-a735-4cb9-9a9e-a0fb912b248c .…”