Pulsed plasma chemical synthesis of carbon-containing titanium and silicon oxide based nanocomposite. (March 2018)

• Record Type: Journal Article
• Authors: Kholodnaya, Galina; Sazonov, Roman; Ponomarev, Denis; Zhirkov, Igor
• Is Part Of: Radiation physics and chemistry. Volume 144(2018:Mar.)
• Page Start: 132
• Page End: 137
• Publication Date: 2018-03
• Subjects: Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2017.11.019
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: The paper presents the results of the experimental investigation of the physical and chemical properties of the Tix Siy Cz Ow composite nanopowders, which were first obtained using a pulsed plasma chemical method. The pulsed plasma chemical synthesis was achieved using a technological electron accelerator (TEA-500). The parameters of the electron beam are as follows: 400–450 keV electron energy, 60 ns half-amplitude pulse duration, up to 200 J pulse energy, and 5 cm beam diameter. The main physical and chemical properties of the obtained composites were studied (morphology, chemical, elemental and phase composition). The morphology of the Tix Siy Cz Ow composites is multiform. There are large round particles, with an average size of above 150 nm. Besides, there are small particles (an average size is in the range of 15–40 nm). The morphology of small particles is in the form of crystallites. In the Tix Siy Cz Ow synthesised composite, the peak with a maximum of 946 cm –1 was registered. The presence of IR radiation in this region of the spectrum is typical for the deformation of atomic oscillations in the Si‒О‒Ti bond, which indicates the formation of the solid solution. The composites consist of two crystal phases – anatase and rutile. The prevailing phase of the crystal structure is rutile. Highlights: The Tix Siy Cz Ow composite was first obtained using the pulsed plasma chemical method. The synthesised powders were studied using different methods. The composites consist of two crystal phases – anatase and rutile. The presence of a solid solution in the powder is indicated by the presence of a Si‒O‒Ti bond.