Speaker
Description
Applying dielectric barrier discharge at atmospheric pressure is an emerging technology with applications in industrial, medical, hygiene, food and consumer industry. The activated and ionized gas molecules of the plasma, for example, destroy bacteria, viruses or organic molecules, thus cleaning and disinfecting the air. Since the interaction is physical, antibiotic-resistant bacteria can also be safely inactivated.
Improving the long-term stability of plasma electrodes is critical to expanding applications and was the reason for introducing insulating and conductive ceramics as electrode materials. Titanium dioxide was chosen for the insulator because its high permittivity allows high electric fields and stable plasma conditions. By changing the stoichiometry, titanium suboxide becomes conductive and was adapted for the conducting part of the electrode. A demonstrator was designed and fabricated by powder injection molding. Therefore, feedstocks were developed basing on a HD-PE/wax binder system. Sintering of the insulator and conductor was conducted in air and in inert gas, respectively. The manufactured demonstrators were able to ignite and maintain the plasma.
| Speaker Country | Germany |
|---|