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Oxidation and Carbidation of Laser-Ablated Amorphized Ti Particles in Carbon Monoxide
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SYSNO ASEP 0390930 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Oxidation and Carbidation of Laser-Ablated Amorphized Ti Particles in Carbon Monoxide Author(s) Jandová, Věra (UCHP-M) RID, ORCID, SAI
Kupčík, Jaroslav (UACH-T) SAI, RID, ORCID
Bastl, Zdeněk (UFCH-W) RID, ORCID
Šubrt, Jan (UACH-T) SAI, RID
Pola, Josef (UCHP-M) RID, ORCID, SAISource Title Solid State Sciences. - : Elsevier - ISSN 1293-2558
Roč. 19, MAY (2013), s. 104-110Number of pages 7 s. Language eng - English Country NL - Netherlands Keywords titanium ; laser ablation ; amorphization Subject RIV CF - Physical ; Theoretical Chemistry Institutional support UCHP-M - RVO:67985858 ; UACH-T - RVO:61388980 ; UFCH-W - RVO:61388955 UT WOS 000318380000018 DOI 10.1016/j.solidstatesciences.2013.02.018 Annotation IR laser ablation of hexagonal titanium in vacuum leads to amorphization of ablated Ti particles and when carried out in gaseous carbon monoxide it proceeds as reactive ablation involving particles amorphization, oxidation and carbidation. The films deposited in vacuum and in the presence of CO were examined by Fourier transform infrared, Raman and X-ray photoelectron spectroscopy, X-ray and electron diffraction and electron microscopy. The Ti films become oxidized upon contact with air and the Ti/C/O films are composed of Ti-O, Ti C and C-O bonds-containing structures with Ti in Ti2+-Ti4+ state and incorporating crystalline rutile and elemental carbon. The ablation in vacuum represents a new approach to amorphous titanium and it is judged that hot ablated Ti particles are modified by reactions with CO decomposition products into amorphous Ti oxycarbides which undergo rapid post-pulse amorphization. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2014
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