Oxidation behavior of TiB2 micro- and nanoparticles

The oxidation of TiB 2 particles (75 to 1500 nm in size) has been studied at temperatures of up to 1000°C by thermogravimetry, X-ray diffraction, X-ray photoelectron spectroscopy, IR frustrated total internal reflection spectroscopy, and energy dispersive X-ray analysis. The oxidation onset was obse...

Full description

Saved in:
Bibliographic Details
Published in:Inorganic materials 2016-07, Vol.52 (7), p.686-693
Main Authors: Andrievskii, R. A., Shul’ga, Yu. M., Volkova, L. S., Korobov, I. I., Dremova, N. N., Kabachkov, E. N., Kalinnikov, G. V., Shilkin, S. P.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The oxidation of TiB 2 particles (75 to 1500 nm in size) has been studied at temperatures of up to 1000°C by thermogravimetry, X-ray diffraction, X-ray photoelectron spectroscopy, IR frustrated total internal reflection spectroscopy, and energy dispersive X-ray analysis. The oxidation onset was observed between 210 and 475°C, depending on the particle size. This distinction can presumably be accounted for in terms of the deformation produced by the Laplace pressure. Oxidation at temperatures under 1000°C leads to the formation of the rutile phase of TiO 2 and boron oxide (B 2 O 3 ). Moreover, at a temperature of ≃ 1000°C titanium borate, TiBO 3 , was observed to form. Under all of the conditions examined, the oxidation reaction does not reach completion and the oxidation products contain unreacted TiB 2 .
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168516070013