B5: 2D-plasma-liquid-solid interfaces – plasma electrolytic oxidation

Principal Investigators: A. Gibson, P. Awakowicz

Team

Awakowicz, Peter (Principal Investigator)

Gibson, Andrew (Principal Investigator)

Grimm, Florens (PhD)

Jan-Luca, Gembus (PhD)

Description

Microdischarges formed in conductive liquids represent highly complex physical and chemical environments. The aim of this project is to develop a better understanding of these systems through an active combination of experimental measurements and numerical simulations. Building on the insights of the first period, a variety of optical and electrical diagnostics will be applied to microdischarges formed in contact with Al, Mg and W electrodes, in order to better understand the influence of the surface material on discharge formation. In addition to the direct insights derived from these measurements, they will be used to provide inputs to specially constructed 0D simulations of microdischarges formed in liquids, which will provide insights into the plasma-chemical kinetics taking place.

Publications

• Investigation of the frequency dependent spatio-temporal dynamics and controllability of microdischarges in unipolar pulsed plasma electrolytic oxidation
  P. Hermanns, S. Boeddeker, V. Bracht, N. Bibinov, G. Grundmeier, P. Awakowicz
  J. Phys. D: Appl. Phys. 54, 045205 (2021)
• Formation and behaviour of plasma spots on the surface of titanium film
  P. Hermanns, F. Kogelheide, V. Bracht, S. Ries, F. Krüger, S. Böddeker, N. Bibinov, P. Awakowicz
  J. Phys. D: Appl. Phys. 54, 085203 (2021)
• Protection strategies for biocatalytic proteins under plasma treatment
  A. Yayci, T. Dirks, F. Kogelheide, M. Alcalde, F. Hollmann, P. Awakowicz, J. E. Bandow
  J. Phys. D: Appl. Phys. 54, 035204 (2021)
• Anode spots of low current gliding arc plasmatron
  S. Boeddeker, V. Bracht, P. Hermanns, S. Groeger, F. Kogelheide, N. Bibinov, P. Awakowicz
  Plasma Sources Sci. Technol. 29, 08LT01 (2020)
• In-situ control of microdischarge characteristics in unipolar pulsed plasma electrolytic oxidation of aluminium
  P. Hermanns, S. Boeddeker, V. Bracht, N. Bibinov, P. Awakowicz
  J. Phys. D: Appl. Phys. 53, 435204 (2020)

Thesis

• Patrick Herrmanns, PhD thesis - 10/2020
  Charakterisierung und Prozessoptimierung industriell relevanter Mikroplasmen: Von der Beschichtungstechnik bis zur Mikrosensorik
• Simon Böddeker, Master thesis - 01/2020
  Elektrische Messtechnik und statistische Prozessdiagnostik an einem PEO-Beschichtungsprozess
• Anna Lena Schöne, Bachelor thesis - 09/2019
  Optische und elektrische Messtechnik an einem Einzelentladungsaufbau zur plasmaelektrolytischen Oxidation
• Vera Bracht, PhD thesis - 07/2022
  Characterisation of Single Microdischarges during Plasma Electrolytic Oxidation of Aluminium
• Florens Grimm, PhD thesis - ongoing
  Simulation of plasma-chemical kinetics in microdischarges formed in bubbles during plasma electrolysis

Further reading

• Phase resolved analysis of the homogeneity of a diffuse dielectric barrier discharge,
  S. Baldus, F. Kogelheide, N. Bibinov, K. Stapelmann, and P. Awakowicz,
  J. Phys. D: Appl. Phys. 48 375202 (2015)
• Space-resolved characterization of high frequency atmospheric-pressure plasma in nitrogen, applying optical emission spectroscopy and numerical simul.
  Priyadarshini Rajasekaran, Cornelia Ruhrmann, Nikita Bibinov, Peter Awakowicz,
  J. Phys. D: Appl. Phys. 44 485205 (2011)