| 1. |
- Barankova, Hana, et al.
(author)
-
Magnetized hollow cathode activated magnetron
- 2015
-
In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 107:15
-
Journal article (peer-reviewed)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.
|
|
| 2. |
- Baránková, Hana, et al.
(author)
-
Non-Conventional Atmospheric Pressure Plasma Sources for Production of Hydrogen
- 2018
-
In: MRS Advances. - : Cambridge University Press. - 2059-8521. ; 3:18, s. 921-929
-
Journal article (peer-reviewed)abstract
- The atmospheric pressure plasma sources with a coaxial geometry were used for generation of the radio frequency, microwave and pulsed dc plasmas inside water and aqueous solutions. Pulsed dc plasma generated in ethanol-water mixtures leads to production of the hydrogen-rich synthesis gas with hydrogen content up to 65 % The effect of various plasma generation regimes on the performance of plasma, on the hydrogen production efficiency and on the hydrogen-rich synthesis gas production was examined. A role of the composition of the ethanol-water mixture was investigated.
|
|
| 3. |
|
|
| 4. |
- Barankova, Hana, et al.
(author)
-
Reactive Deposition of TiN Films by Magnetron with Magnetized Hollow Cathode Enhanced Target
- 2018
-
In: Vacuum. - : Elsevier BV. - 0042-207X .- 1879-2715. ; 152, s. 123-127
-
Journal article (peer-reviewed)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.
|
|
| 5. |
- Bardos, Ladislav, et al.
(author)
-
Production of Hydrogen-Rich Synthesis Gas by Pulsed Atmospheric Plasma Submerged in Mixture of Water with Ethanol
- 2017
-
In: Plasma chemistry and plasma processing. - : Springer Science and Business Media LLC. - 0272-4324 .- 1572-8986. ; 37:1, s. 115-123
-
Journal article (peer-reviewed)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.
|
|
| 6. |
- Barankova, Hana, et al.
(author)
-
Abnormal High Rate Deposition of TiN Films by the Radio Frequency Plasma Jet System
- 1995
-
In: J Electrochem Soc. - 0013-4651. ; 142:3, s. 883-887
-
Journal article (peer-reviewed)abstract
- Radio frequency Ar and Ar + N-2 plasma jets generated in a hollow electrode terminated by a small size Ti nozzle were used for deposition of Ti and TiN films. The regime with low content of reactive gas resulted in an extreme enhancement of TiN deposition
|
|
| 7. |
- Barankova, Hana, et al.
(author)
-
Amorphous Carbon Coatings on Glass for High Voltage Protection
- 2022
-
In: ECS Journal of Solid State Science and Technology. - : The Electrochemical Society. - 2162-8769 .- 2162-8777. ; 11:5
-
Journal article (peer-reviewed)abstract
- Radio frequency Hollow Cathode based hybrid process integrating both Physical Vapor Deposition and Plasma Enhanced Chemical Vapor Deposition was used for deposition of amorphous carbon on glass samples. The films were subjected to high voltage pulses and the performance was compared with uncoated glass samples to test the protection ability of the films, the ability to prevent the deteriorating effects of corona flashovers/arcs. In contrast to the uncoated glass the well adherent carbon films with thicknesses between 3.5 and 17 mu m exhibited an excellent protection of the glass substrate against the flashovers/arc damages in both polarities of the electric field with voltages up to 300 kV.
|
|
| 8. |
|
|
| 9. |
- Barankova, Hana, et al.
(author)
-
Atmospheric Plasma Technology for Coating
- 2007
-
In: 50 Years of Vacuum Coating Technology and the Growth of the Society of Vacuum Coaters. - : Society of Vacuum Coaters, Albuquerque, NM. - 9781878068279 ; , s. 141-146
-
Book chapter (other academic/artistic)
|
|
| 10. |
- Baránková, Hana, et al.
(author)
-
Atmospheric pressure plasma conversion of CO2 to solid deposits
- 2015
-
In: Results in Physics. - Elsevier : Elsevier BV. - 2211-3797. ; 5, s. 257-258
-
Journal article (peer-reviewed)abstract
- Fused Hollow Cathode (FHC) with aerodynamic stabilization was used for the gas conversion processes. During the conversion of NO into NO2 in air mixtures, the CO2 reduction occurs, without forming gaseous CO. In these processes brownish glassy solid deposits are formed in the plasma region. The deposits were analyzed by scanning electron microscopy, X-ray photoelectron spectroscopy and X-ray diffraction.
|
|
