By a News Reporter-Staff News Editor at Life Science Weekly -- A new study on Chalcogens is now available. According to news reporting originating from Prague, Czech Republic, by NewsRx correspondents, research stated, "For the use of a gas aggregation cluster source a high and stable deposition rate is desired. For many metals, nanoparticle formation is enhanced by admixture of reactive gases."
Our news editors obtained a quote from the research from Charles University, "Here, the role of reactive gas admixtures on the nanoparticle deposition rates is investigated for the case of reactive direct current magnetron sputtering of Ti in a gas aggregation chamber. The results show that, at low working gas (argon) pressures, stable cluster deposition at high rates can only be achieved for admixtures with a very narrow oxygen flow range. At higher pressures, stable deposition can be observed only after an intermediate maximum rate has been crossed or a stable deposition rate is not reached at all. For the different sputtering conditions, the partial pressure of oxygen was monitored with a mass spectrometer. The results are explained in terms of the competing roles of oxygen in cluster nucleation as well as in target poisoning."
According to the news editors, the research concluded: "The cluster size distributions for different conditions were characterized by scanning electron microscopy."
For more information on this research see: Role of oxygen admixture in stabilizing TiO (x) nanoparticle deposition from a gas aggregation source. Journal of Nanoparticle Research, 2013;15(12):1-11. Journal of Nanoparticle Research can be contacted at: Springer, Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands. (Springer - www.springer.com; Journal of Nanoparticle Research - www.springerlink.com/content/1388-0764/)
The news editors report that additional information may be obtained by contacting A.M. Ahadi, Charles Univ Prague, Fac Math & Phys, CR-18000 Prague 8, Czech Republic. Additional authors for this research include V. Zaporojtchenko, T. Peter, O. Polonskyi, T. Strunskus and F. Faupel (see also Chalcogens).
Keywords for this news article include: Prague, Europe, Chalcogens, Czech Republic
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