Morphology of TiO2 Layers with a Well-Developed Acicular–Fibrous Structure in VT-20 Titanium


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We have studied the effect of size factors of substrates on the formation of TiO2 layers with a well-developed acicular–fibrous structure on VT-20 titanium. The proposed technique allows a TiO2 layer with a large surface area to be produced by etching in a KOH solution (without using hydrothermal synthesis conditions), followed by heat treatment. The layers thus produced consist of fibers 20–100 nm in diameter and up to 1 μm in length, which are strongly bonded to the substrate surface. Their phase composition is dominated by rutile. The fiber growth process is shown to be influenced by substrate etching and heat treatment conditions, weakly influenced by the curvature of the substrate, and independent of its dimensions.

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E. Drobakha

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: drgr81@mail.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

G. Drobakha

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: drgr81@mail.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

S. Shevtsov

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: drgr81@mail.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

A. Konovalov

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: drgr81@mail.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

K. Solntsev

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: drgr81@mail.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

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