Laser ablation is an effective method to clean Cu-based alloys. A novel procedure of characterisation was developed involving 18O isotopes evaluated by ToF-SIMS spectroscopy to assess the driving mechanisms of laser-surface interactions. The presence of re-oxidised compounds was detected, discerning between the oxygen from the corrosion layer and the one introduced by the interaction with the laser (that was generated in a controlled atmosphere of 18O diluted in N2). A set of samples treated with different laser conditions were characterised by FESEM and μRaman. The results have shown that re-oxidation phenomenon can occur and its selectivity depends on the laser conditions.
Novel procedure for studying laser-surface material interactions during scanning laser ablation cleaning processes on Cu-based alloys / Di Francia, Elisabetta; Lahoz, Ruth; Neff, Delphine; Rico, Victor; Nuns, Nicolas; Angelini, Emma; Grassini, Sabrina. - In: APPLIED SURFACE SCIENCE. - ISSN 0169-4332. - STAMPA. - 544:(2021), p. 148820. [10.1016/j.apsusc.2020.148820]
Novel procedure for studying laser-surface material interactions during scanning laser ablation cleaning processes on Cu-based alloys
Di Francia, Elisabetta;Angelini, Emma;Grassini, Sabrina
2021
Abstract
Laser ablation is an effective method to clean Cu-based alloys. A novel procedure of characterisation was developed involving 18O isotopes evaluated by ToF-SIMS spectroscopy to assess the driving mechanisms of laser-surface interactions. The presence of re-oxidised compounds was detected, discerning between the oxygen from the corrosion layer and the one introduced by the interaction with the laser (that was generated in a controlled atmosphere of 18O diluted in N2). A set of samples treated with different laser conditions were characterised by FESEM and μRaman. The results have shown that re-oxidation phenomenon can occur and its selectivity depends on the laser conditions.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/2860030