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|Title: ||Size dependence of rutile TiO2 lattice parameters determined via simultaneous size, strain, and shape modeling|
|Authors: ||Kuznetsov, Alexei Y.|
Gomes, Lincoln S.
Achete, Carlos Alberto
Muddle, Barry C.
|Issue Date: ||2009 |
|Citation: ||KUZNETSOV, Alexei Y. et al. Size dependence of rutile TiO2 lattice parameters determined via simultaneous size, strain, and shape modeling. Applied Physics Letters, v. 94, n. 19, p. 193117-1 - 193117-3, 2009.|
|Abstract: ||Simultaneous crystal structure, microstructure, and morphology modeling with convolution-based profile fitting of angle-dispersive synchrotron x-ray diffraction data was applied to retrieve the size-dependent lattice changes in nanocrystalline rutile TiO2. The dominant prismatic crystallite morphology was adequately modeled using the parallelepiped geometry. As with anatase TiO2, opposing trends of decreasing c and increasing a parameter, as well as lattice expansion with decreasing average crystallite size were observed. A correlation between Ti vacancy abundance and lattice volume increase suggests a possible causative link.|
|Description: ||3 p. : il.|
|Document type: ||artigo|
|Unit: ||Diretoria de Metrologia Científica e Industrial|
|Appears in Collections:||CGCRE | Acreditação de Laboratórios|
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