Effect of Stoichiometry and Ordering on the Microstructure of Titanium Monoxide TiOy | Zendy

S. V. Rempel | Zendy; А. А. Rempel | Zendy; А. А. Валеева | Zendy

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Effect of Stoichiometry and Ordering on the Microstructure of Titanium Monoxide TiO_y

Author(s) -

S. V. Rempel,

А. А. Rempel,

А. А. Валеева

Publication year - 2020

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.0c03122

Subject(s) - monoxide , stoichiometry , microstructure , titanium , materials science , carbon monoxide , metallurgy , chemical engineering , chemistry , catalysis , organic chemistry , engineering

The structure of titanium monoxide TiO y with different stoichiometries and long-range order degrees was studied by using X-ray diffraction, electron backscatter diffraction, Raman spectroscopy, and electron microscopy methods. It was established that the composition of the phases formed in annealed TiO y depends on the titanium monoxide stoichiometry. A new phase precipitation mechanism is proposed. The migration of vacancies in dislocations and their accumulation on grain boundaries play an important role in the formation of new phases. The stoichiometry of quenched titanium monoxide (TiO y ) was found to affect the intensity of the peak associated with the vibrational mode of the Ti-O bond in Raman spectra.

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