Carbide and nanocomposite thin films in the Ti-Pt-C system
2010 (English)In: Thin Solid Films, ISSN 0040-6090, E-ISSN 1879-2731, Vol. 518, no 18, 5104-5109 p.Article in journal (Refereed) Published
Thin films in the Ti-Pt-C system were deposited by non-reactive, DC-magnetron sputtering. Samples were characterised using X-ray photoelectron spectroscopy, X-ray diffraction, and transmission electron microscopy. A previously not reported metastable solid solution carbide, (Ti1-xPtx)C-y with a Pt/Ti ratio of up to 0.43 was observed. This solid solution phase was present both as single phase in polycrystalline samples, and together with amorphous carbon (a-C) in nanocomposite samples. Annealing of nanocomposite samples leads to the decomposition of the solid solution phase and the formation of a nc-TiCx/a-C/nc-Pt nanocomposite. Test sensors for automotive gas exhausts manufactured from such a three-phase material suffer from complete oxidation of the coating at 400 degrees C with no observed sensor activity.
Place, publisher, year, edition, pages
Elsevier B.V. , 2010. Vol. 518, no 18, 5104-5109 p.
Solid solution carbide, Nanocomposite, Sputtering, Gas sensor; Annealing, Transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction
Research subject Inorganic Chemistry
IdentifiersURN: urn:nbn:se:uu:diva-109234DOI: 10.1016/j.tsf.2010.03.017ISI: 000279659900013OAI: oai:DiVA.org:uu-109234DiVA: diva2:271619