Publication detail

Properties of MgAl2O4 doped alumina barrier layers for dielectric barrier discharge

PŘIBYL, R. ŠŤASTNÝ, P. PAZDERKA, M. KELAR, J. KELAR TUČEKOVÁ, Z. ZEMÁNEK, M. TRUNEC, M. ČERNÁK, M.

Original Title

Properties of MgAl2O4 doped alumina barrier layers for dielectric barrier discharge

Type

journal article in Web of Science

Language

English

Original Abstract

In the current work, we studied the effect of multiphasic dielectric material on coplanar dielectric barrier discharge. To enhance the application potential of standard alumina (Al2O3) ceramic barriers, composite materials composed of immiscible Al2O3 and Mg-spinel (MgAl2O4) phases were prepared and investigated. The effect on coplanar dielectric barrier discharge was studied in a broad concentration profile of the composite materials ranging from 0 to 100 vol.% MgAl2O4 MgAl2O4. We also noticed differences in plasma filament localization on the ceramic surfaces of different composites. This work also brings comprehensive investigation of the electrical and microstructural properties of this biphasic barrier material. Detailed investigation revealed that the ignition voltage was a nontrivial combination of both bulk (phase and chemical compositions) as well as surface (phase distribution, grain size, surface roughness) properties of the barrier materials.

Keywords

ignition voltage; coplanar dielectric barrier discharges; plasma; ceramics tape casting; ceramic composition; ceramic barrier layer

Authors

PŘIBYL, R.; ŠŤASTNÝ, P.; PAZDERKA, M.; KELAR, J.; KELAR TUČEKOVÁ, Z.; ZEMÁNEK, M.; TRUNEC, M.; ČERNÁK, M.

Released

9. 12. 2020

Publisher

IOP PUBLISHING LTD

Location

BRISTOL

ISBN

1361-6463

Periodical

Journal of Physics D - Applied Physics

Year of study

53

Number

50

State

United Kingdom of Great Britain and Northern Ireland

Pages from

505202-1

Pages to

505202-11

Pages count

11

URL