Matches in SemOpenAlex for { <https://semopenalex.org/work/W2593927143> ?p ?o ?g. }
- W2593927143 endingPage "41" @default.
- W2593927143 startingPage "29" @default.
- W2593927143 abstract "PEO was conducted on Al by applying a pulsed bipolar current. The role of the cathodic polarization on the appearance of micro-discharges (MDs) and on the subsequent formation of the PEO oxide layers is investigated. Various ratios of the charge quantity RCQ = Qp/Qn (defined as the anodic Qp to cathodic Qn charge quantity ratio over one current pulse period) in the range [0.5; 6.0] were selected by changing the waveform parameters of the cathodic current while keeping the waveform of the anodic current unchanged. Results show that the appearance of MDs is delayed with respect to the rising edge of the anodic current; this delay strongly depends on both the processing time and the applied cathodic charge quantity. It is also evidenced that shorter delays promoted by high RCQ values (RCQ > 1) are associated with stronger MDs (large size and long life) that have detrimental effects on the formed PEO oxide layers. Thicker and the more compact oxide layer morphology is achieved with the intermediate RCQ value (RCQ = 0.9) for which the delay of the MDs appearance is high and the MDs softer. Low RCQ (RCQ < 0.9) results in an earlier extinction of the MDs as the process goes on, which leads to poorly oxidized metal. A mechanism of charge accumulation taking place at the oxide/electrolyte interface and arising before the occurrence of dielectric breakdown is proposed to explain the ignition of MDs during pulsed bipolar PEO of aluminium. A close examination of the voltage-time response which can be adequately simulated with an equivalent RC circuit evidences the capacitive behaviour of the oxide layer and therefore confirms this proposed mechanism of charge accumulation." @default.
- W2593927143 created "2017-03-16" @default.
- W2593927143 creator A5006160345 @default.
- W2593927143 creator A5023301737 @default.
- W2593927143 creator A5027765431 @default.
- W2593927143 creator A5050584975 @default.
- W2593927143 creator A5052399769 @default.
- W2593927143 creator A5055563043 @default.
- W2593927143 creator A5087645436 @default.
- W2593927143 creator A5088340380 @default.
- W2593927143 date "2017-07-01" @default.
- W2593927143 modified "2023-10-12" @default.
- W2593927143 title "Delay in micro-discharges appearance during PEO of Al: Evidence of a mechanism of charge accumulation at the electrolyte/oxide interface" @default.
- W2593927143 cites W1971855593 @default.
- W2593927143 cites W1977197417 @default.
- W2593927143 cites W1983655859 @default.
- W2593927143 cites W1985155039 @default.
- W2593927143 cites W1992139368 @default.
- W2593927143 cites W1994797799 @default.
- W2593927143 cites W1995777552 @default.
- W2593927143 cites W1998618139 @default.
- W2593927143 cites W2007441588 @default.
- W2593927143 cites W2012881598 @default.
- W2593927143 cites W2013041378 @default.
- W2593927143 cites W2015932577 @default.
- W2593927143 cites W2015973556 @default.
- W2593927143 cites W2016264299 @default.
- W2593927143 cites W2022239886 @default.
- W2593927143 cites W2024308864 @default.
- W2593927143 cites W2025116324 @default.
- W2593927143 cites W2028399679 @default.
- W2593927143 cites W2028435255 @default.
- W2593927143 cites W2028906236 @default.
- W2593927143 cites W2031919874 @default.
- W2593927143 cites W2032170575 @default.
- W2593927143 cites W2032695136 @default.
- W2593927143 cites W2033188823 @default.
- W2593927143 cites W2033534717 @default.
- W2593927143 cites W2035216844 @default.
- W2593927143 cites W2038219796 @default.
- W2593927143 cites W2039799632 @default.
- W2593927143 cites W2046563164 @default.
- W2593927143 cites W2049876112 @default.
- W2593927143 cites W2054216738 @default.
- W2593927143 cites W2055308044 @default.
- W2593927143 cites W2056863068 @default.
- W2593927143 cites W2066945948 @default.
- W2593927143 cites W2067366490 @default.
- W2593927143 cites W2067468422 @default.
- W2593927143 cites W2071447598 @default.
- W2593927143 cites W2083212517 @default.
- W2593927143 cites W2083919450 @default.
- W2593927143 cites W2084418270 @default.
- W2593927143 cites W2085622397 @default.
- W2593927143 cites W2087192561 @default.
- W2593927143 cites W2089755583 @default.
- W2593927143 cites W2111186183 @default.
- W2593927143 cites W2118166970 @default.
- W2593927143 cites W2125804417 @default.
- W2593927143 cites W2167391707 @default.
- W2593927143 cites W2168106967 @default.
- W2593927143 cites W2171602035 @default.
- W2593927143 cites W2214573834 @default.
- W2593927143 cites W2483728735 @default.
- W2593927143 doi "https://doi.org/10.1016/j.apsusc.2017.03.088" @default.
- W2593927143 hasPublicationYear "2017" @default.
- W2593927143 type Work @default.
- W2593927143 sameAs 2593927143 @default.
- W2593927143 citedByCount "61" @default.
- W2593927143 countsByYear W25939271432017 @default.
- W2593927143 countsByYear W25939271432018 @default.
- W2593927143 countsByYear W25939271432019 @default.
- W2593927143 countsByYear W25939271432020 @default.
- W2593927143 countsByYear W25939271432021 @default.
- W2593927143 countsByYear W25939271432022 @default.
- W2593927143 countsByYear W25939271432023 @default.
- W2593927143 crossrefType "journal-article" @default.
- W2593927143 hasAuthorship W2593927143A5006160345 @default.
- W2593927143 hasAuthorship W2593927143A5023301737 @default.
- W2593927143 hasAuthorship W2593927143A5027765431 @default.
- W2593927143 hasAuthorship W2593927143A5050584975 @default.
- W2593927143 hasAuthorship W2593927143A5052399769 @default.
- W2593927143 hasAuthorship W2593927143A5055563043 @default.
- W2593927143 hasAuthorship W2593927143A5087645436 @default.
- W2593927143 hasAuthorship W2593927143A5088340380 @default.
- W2593927143 hasBestOaLocation W25939271432 @default.
- W2593927143 hasConcept C113196181 @default.
- W2593927143 hasConcept C119599485 @default.
- W2593927143 hasConcept C127413603 @default.
- W2593927143 hasConcept C147789679 @default.
- W2593927143 hasConcept C165801399 @default.
- W2593927143 hasConcept C17525397 @default.
- W2593927143 hasConcept C178790620 @default.
- W2593927143 hasConcept C185592680 @default.
- W2593927143 hasConcept C192562407 @default.
- W2593927143 hasConcept C197424946 @default.
- W2593927143 hasConcept C205049153 @default.
- W2593927143 hasConcept C205871581 @default.