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Название Structure of TiO2 – ZrO2 – SiO2 tubes
DOI 10.17580/tsm.2016.01.10
Автор Trukhina I. G., Mansurov Yu. N., Reva V. P., Pimenov V. A.
Информация об авторе

Far Eastern Federal University, Vladivostok, Russia:

I. G. Trukhina, Master's Degree Student (Chair of Materials Science and Material Technology)
Yu. N. Mansurov, Professor, Head of a Chair of Materials Science and Material Technology, e-mail: yulbarsmans@gmail.com
V. P. Reva, Assistant Professor (Chair of Materials Science and Material Technology)
V. A. Pimenov, Assistant (Chair of Materials Science and Material Technology)


The aim of the research was to investigate structure and morphology of samples of composite materials based on nanotubes, containing TiO2 – ZrO2 – SiO2, and to analyze dependence of their structure on components ratio and annealing temperature. Template method was used to obtain composite nanomaterials, representing nanostructured TiO2 – ZrO2 – SiO2 oxide tubes with diameter from 1 to 3 μm and length from 10 to 300 μm. Nanotubes are formed of nanocrystallites with the size from 10 to 25 nm. Thickness of the nanotubes’ walls is about 300 nm. The TiO2 – ZrO2 – SiO2 composites, obtained by the sol-gel method at carbonic fibrous template with contents of ZrO2 up to 5.6% and annealing temperature from 550 to 850 oС, are formed of nanoparticles with an anatase structured lattice. Composites contain 1.0–23.4% of SiO2 which have no effect on crystal structure of nanoparticles, but which is presented as an amorphous phase, covering them. It was defined that controllable variation of ZrO2 content in the new TiO2 – ZrO2 – SiO2 composite as well as an annealing temperature allows to synthesize materials with different morphology and crystal structure of nanoparticles, comprising these materials. It was defined that the maximum allowable content of ZrO2 with respect to the total mass of a composite, which provides the balance between obtaining small anatase nanoparticles and keeping the microtubes themselves integrated during annealing at the temperatures from 550 to 800 оС, amounts to 5–6%.

Ключевые слова Composition, structure, nanotubes, oxides of non-ferrous metals, morphology, composites, phase composition
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Language of full-text русский
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