Method for forming three-dimensional anchoring structures on a surface by propagating energy through a multi-core fiber

摘要

A method for forming three-dimensional anchoring structures on a surface is provided. This method may result in a thermal barrier coating system exhibiting enhanced adherence for its constituent coatings. The method involves applying a first laser beam (20) through a first portion (7) of a multi-core fiber (4) to a surface (12) of a solid material (14) to form a liquefied bed (16) on the surface (12) of the solid material (14), then applying a pulse of laser energy (24) through a second portion (6) of the multi-core fiber (4) to a portion of the liquefied bed (16) to cause a disturbance, such as a splash (28) of liquefied material outside the liquefied bed (16). A three-dimensional anchoring structure (30) may thus be formed on the surface (12) upon solidification of the splash (28) of the liquefied material.

主权项

1. A method comprising:
propagating, via a first laser beam, a first laser energy through a first fiber of a multi-core fiber; propagating, via a non-laser energy source a second non-laser energy selected from one of a mechanical energy, sonic energy, and ultrasonic energy within a hollow second fiber of the multi-core fiber; applying the first laser energy to a surface of a substrate to form a liquefied bed on the surface; applying the second non-laser energy to at least a portion of the liquefied bed to cause a splash of liquefied material outside the liquefied bed; and forming on or above the surface of the substrate a three-dimensional anchoring structure upon solidification of the splash of liquefied material.