The statistics of spoke configurations in HiPIMS discharges

J 2019

The statistics of spoke configurations in HiPIMS discharges

KLEIN, Peter; Jaroslav HNILICA; Miroslav ZEMÁNEK; James W BRADLEY; Petr VAŠINA et al.

Základní údaje

Originální název

The statistics of spoke configurations in HiPIMS discharges

Autoři

KLEIN, Peter; Jaroslav HNILICA; Miroslav ZEMÁNEK; James W BRADLEY a Petr VAŠINA

Vydání

Journal of physics D: Applied physics, Bristol, England, IOP Publishing Ltd. 2019, 0022-3727

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Full Text

Impakt faktor

Impact factor: 3.169

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/19:00109130

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

HiPIMS; spokes; strip probe; fast camera

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 16. 3. 2020 13:31, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Ionisation zones, or spokes to which the discharge self-organises during the HiPIMS pulse is a recently investigated phenomenon, however adequately describing or representing these highly dynamical features is a challenge. As the spokes rotate above the target their properties can change over time, with splitting or merging frequently occurring. Here we investigate the evolution of quasi-stable spoke configurations (modes) during the HiPIMS pulse by simultaneously employing six flush mounted strip probes evenly distributed over the target and through observation by a fast camera. This arrangement was used to track the changes in the spoke configuration. The effect of the discharge current at two different pressures on the spoke configuration was statistically examined. A large amount of data was evaluated to claim that at the pressure of 0.2 Pa, there exists an equal probability for spokes to merge and to split. By contrast, spoke configurations at a pressure of 4 Pa exhibited a strong driving force towards higher spoke mode numbers, which was reflected in a significantly higher occurrence of spoke splitting over spoke merging. A simple phenomenological model describing spoke merging and splitting is presented.

Návaznosti

ED2.1.00/03.0086, projekt VaV

Název: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy

LO1411, projekt VaV

Název: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Akronym: CEPLANT plus)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy

Citovat

KLEIN, Peter; Jaroslav HNILICA; Miroslav ZEMÁNEK; James W BRADLEY a Petr VAŠINA. The statistics of spoke configurations in HiPIMS discharges. Journal of physics D: Applied physics. Bristol, England: IOP Publishing Ltd., 2019, roč. 52, č. 12, s. 1-10. ISSN 0022-3727. Dostupné z: https://doi.org/10.1088/1361-6463/aafab3.

@article{1496443,
   author = {Klein, Peter and Hnilica, Jaroslav and Zemánek, Miroslav and Bradley, James W and Vašina, Petr},
   article_location = {Bristol, England},
   article_number = {12},
   doi = {https://doi.org/10.1088/1361-6463/aafab3},
   keywords = {HiPIMS; spokes; strip probe; fast camera},
   language = {eng},
   issn = {0022-3727},
   journal = {Journal of physics D: Applied physics},
   title = {The statistics of spoke configurations in HiPIMS discharges},
   url = {http://iopscience.iop.org/article/10.1088/1361-6463/aafab3},
   volume = {52},
   year = {2019}
}

TY  - JOUR
ID  - 1496443
AU  - Klein, Peter - Hnilica, Jaroslav - Zemánek, Miroslav - Bradley, James W - Vašina, Petr
PY  - 2019
TI  - The statistics of spoke configurations in HiPIMS discharges
JF  - Journal of physics D: Applied physics
VL  - 52
IS  - 12
SP  - 1-10
EP  - 1-10
PB  - IOP Publishing Ltd.
SN  - 00223727
KW  - HiPIMS
KW  - spokes
KW  - strip probe
KW  - fast camera
UR  - http://iopscience.iop.org/article/10.1088/1361-6463/aafab3
L2  - http://iopscience.iop.org/article/10.1088/1361-6463/aafab3
N2  - Ionisation zones, or spokes to which the discharge self-organises during the HiPIMS pulse is a recently investigated phenomenon, however adequately describing or representing these highly dynamical features is a challenge. As the spokes rotate above the target their properties can change over time, with splitting or merging frequently occurring. Here we investigate the evolution of quasi-stable spoke configurations (modes) during the HiPIMS pulse by simultaneously employing six flush mounted strip probes evenly distributed over the target and through observation by a fast camera. This arrangement was used to track the changes in the spoke configuration. The effect of the discharge current at two different pressures on the spoke configuration was statistically examined. A large amount of data was evaluated to claim that at the pressure of 0.2 Pa, there exists an equal probability for spokes to merge and to split. By contrast, spoke configurations at a pressure of 4 Pa exhibited a strong driving force towards higher spoke mode numbers, which was reflected in a significantly higher occurrence of spoke splitting over spoke merging. A simple phenomenological model describing spoke merging and splitting is presented.
ER  -

KLEIN, Peter; Jaroslav HNILICA; Miroslav ZEMÁNEK; James W BRADLEY a Petr VAŠINA. The statistics of spoke configurations in HiPIMS discharges. \textit{Journal of physics D: Applied physics}. Bristol, England: IOP Publishing Ltd., 2019, roč.~52, č.~12, s.~1-10. ISSN~0022-3727. Dostupné z: https://doi.org/10.1088/1361-6463/aafab3.

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