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- Barankova, Hana, et al.
(författare)
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Magnetized hollow cathode activated magnetron
- 2015
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 107:15
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Tidskriftsartikel (refereegranskat)abstract
- Planar magnetron in which the target is coupled with a magnetized hollow cathode is presented. Detailed principles of such arrangements are explained. The hollow cathode activated magnetron produces intense and stable plasmas in a wider interval of the working gas pressures as compared to the conventional magnetrons at the same power. The developed arrangements enhance sputtering from the magnetron target by the high-density hollow cathode plasma and increase the number of sputtered/evaporated species. Results of the test experiments of these arrangements on a commercial planar magnetron with the Ti target are presented and their capabilities discussed.
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| 2. |
- Barankova, Hana, et al.
(författare)
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Reactive Deposition of TiN Films by Magnetron with Magnetized Hollow Cathode Enhanced Target
- 2018
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Ingår i: Vacuum. - : Elsevier BV. - 0042-207X .- 1879-2715. ; 152, s. 123-127
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Tidskriftsartikel (refereegranskat)abstract
- Magnetized Hollow Cathode Activated Magnetron in which the target is coupled with the hollow cathode magnetized by the magnetic field of the magnetron was tested in the reactive process of TiN deposition. Increased deposition rate compared to the Ti metal deposition rate was confirmed. The depositions as well as optical measurements were performed at several pressures in the reactor. The results of the TiN reactive deposition are presented and discussed, including the TiN deposition in pure nitrogen.
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| 3. |
- Bardos, Ladislav, et al.
(författare)
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Production of Hydrogen-Rich Synthesis Gas by Pulsed Atmospheric Plasma Submerged in Mixture of Water with Ethanol
- 2017
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Ingår i: Plasma chemistry and plasma processing. - : Springer Science and Business Media LLC. - 0272-4324 .- 1572-8986. ; 37:1, s. 115-123
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Tidskriftsartikel (refereegranskat)abstract
- Hydrogen-rich synthesis gas was produced by pulsed dc plasma submerged into ethanol-water mixtures using an original system with a coaxial geometry. The ignition of the discharge is immediately followed by production of hydrogen and after a short time necessary for filling the outlet tubing a flame can be ignited. No auxiliary gas was used for the reforming process. The synthesis gas containing up to 60% of hydrogen was formed, at the outflow rate of 250 sccm at the average power as low as 10 W. The hydrogen production efficiency corresponds to 12 kWh/kg H-2.
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| 4. |
- Andersson-Sköld, Yvonne, et al.
(författare)
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Developing and validating a practical decision support tool (DST) for biomass selection on marginal land
- 2014
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Ingår i: Journal of Environmental Management. - : Elsevier BV. - 0301-4797. ; 145, s. 113-121
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Tidskriftsartikel (refereegranskat)abstract
- Marginal, often contaminated, sites exist in large areas across the world as a result of historic activities such as industry, transportation and mineral extraction. Remediation, or other improvements, of these sites is typically only considered for sites with high exploitation pressure and those posing the highest risks to human health or the environment. At the same time there is increasing competition for land resources for different needs such as biofuel production. Potentially some of this land requirement could be met by production of biomass on brownfield or other marginal land, thereby improving the land while applying the crop cultivation as part of an integrated management strategy. The design and decision making for such a strategy will be site specific. A decision support framework, the Rejuvenate DST (decision support tool) has been developed with the aim of supporting such site specific decision making. This tool is presented here, and has been tested by applying it to a number of case study sites. The consequent SWOT (strength, weakness, opportunities and threats) analysis is discussed and evaluated. The DST was found to be systematic, transparent, and applicable for diverse sites in France, Romania and Sweden, in addition to the sites to which it was applied through its development. The DST is regarded as especially useful if applied as a checklist in an iterative way throughout the decision process, from identifying potential crops to identifying knowledge gaps, working/non-working management strategies and potential risks. The DST also provides a structure promoting effective stakeholder engagement. (C) 2014 Elsevier Ltd. All rights reserved.
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| 5. |
- Bardos, Ladislav, et al.
(författare)
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Diamond deposition in a microwave electrode discharge at reduced pressures
- 1997
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Ingår i: DIAMOND AND RELATED MATERIALS. - 0925-9635. ; 6:2-4, s. 224-229
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Tidskriftsartikel (refereegranskat)abstract
- Diamond deposition on healed Si-substrates was studied under microwave discharge generated by an electrode-antenna either in a ''point-to-plane'' arrangement or in a ''parallel-plane'' arrangement at gas pressures of 1-15 Torr in a mixture of hydrogen wit
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