Method of selective phase removal in nanocomposite comprising at least first and second phases

The present invention relates to a method of selectively removing at least part of a first phase (2) from a surface of a nanocomposite comprising at least a first phase (2) and a second phase (3), each phase (2, 3) having a respective threshold fluence under a given number of applied laser pulses for removal of the phase (2, 3) by laser ablation, wherein the threshold fluence of the first phase (2) is less than the threshold fluence of the second phase (3), the method comprising irradiating the surface (4) of the nanocomposite with a laser beam (5) having a laser beam diameter (D), a laser pulse duration, and a laser pulse energy during the irradiation, wherein the laser fluence during the irradiation is less than the threshold fluence of the second phase (3) and greater than the threshold fluence of the first phase (2), and wherein the laser beam diameter (D) is greater than an average grain size of the first phase (2) at the surface (4) of the nanocomposite.

Octrooi-publicatienummer: EP4110547

Jaar aanvraag: 2021

Jaar toekenning: 2024

Jaar van publicatie: 2023

Status: Aangevraagd

Technologiedomeinen: Materialen, metallurgie, Machinegereedschappen

Gevalideerd voor IOF-sleutel: Ja

Toegewezen aan: Associatie KULeuven