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.