Geodesic
Stable Ti$_9$O$_{10}$ nanophase grown from nonstoichiometric titanium monoxide TiO$_y$ nanopowder
Nanosistemy: fizika, himiâ, matematika, Tome 8 (2017) no. 6, pp. 816-822.

Voir la notice de l'article provenant de la source Math-Net.Ru

A new stable Ti$_9$O$_{10}$ nanophase (sp. gr. Immm) has been detected by X-ray diffraction (XRD) after high energy ball milling and long-term vacuum annealing of nanocrystalline powder of nonstoichiometric disordered and ordered titanium monoxide TiO$_y$ with B1 structure (sp. gr. Fm$\bar3$m). With the help of XRD data, the unit cell of the Ti$_9$O$_{10}$ nanophase as well as the distribution of atoms and structural vacancies in the titanium and oxygen sublattices of this phase have been established. The crystal structure of Ti$_9$O$_{10}$ is derived from that of TiO$_y$ by (a) a migration of the vacancies to the specific crystallographic planes of B1 structure and (b) by orthorhombic distortions. The DFT calculations of the full energy of the coarsecrystalline phases TiO$_y$ and Ti$_9$O$_{10}$ revealed that the bulk ordered phase Ti$_9$O$_{10}$ is not preferable in comparison with the bulk disordered cubic phase TiO$_y$ with the same content of vacancies in the sublattices, so, it is the nanostate that causes the formation of Ti$_9$O$_{10}$.
Keywords: Titanium monoxide, ball milling, nanophase Ti$_9$O$_{10}$, electronic structure.
Mots-clés : phase transition 
@article{NANO_2017_8_6_a15,
     author = {A. A. Valeeva and M. G. Kostenko},
     title = {Stable {Ti}$_9${O}$_{10}$ nanophase grown from nonstoichiometric titanium monoxide {TiO}$_y$ nanopowder},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {816--822},
     publisher = {mathdoc},
     volume = {8},
     number = {6},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2017_8_6_a15/}
}
TY  - JOUR
AU  - A. A. Valeeva
AU  - M. G. Kostenko
TI  - Stable Ti$_9$O$_{10}$ nanophase grown from nonstoichiometric titanium monoxide TiO$_y$ nanopowder
JO  - Nanosistemy: fizika, himiâ, matematika
PY  - 2017
SP  - 816
EP  - 822
VL  - 8
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NANO_2017_8_6_a15/
LA  - en
ID  - NANO_2017_8_6_a15
ER  - 
%0 Journal Article
%A A. A. Valeeva
%A M. G. Kostenko
%T Stable Ti$_9$O$_{10}$ nanophase grown from nonstoichiometric titanium monoxide TiO$_y$ nanopowder
%J Nanosistemy: fizika, himiâ, matematika
%D 2017
%P 816-822
%V 8
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NANO_2017_8_6_a15/
%G en
%F NANO_2017_8_6_a15
A. A. Valeeva; M. G. Kostenko. Stable Ti$_9$O$_{10}$ nanophase grown from nonstoichiometric titanium monoxide TiO$_y$ nanopowder. Nanosistemy: fizika, himiâ, matematika, Tome 8 (2017) no. 6, pp. 816-822. http://geodesic.mathdoc.fr/item/NANO_2017_8_6_a15/