Method for forming three-dimensional anchoring structures on a surface
AssigneeSiemens Energy, Inc.
InventorsGerald J. Bruck, Ahmed Kamel
Life of this patent
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Abstract
A method for forming three-dimensional anchoring structures on a surface is provided. This may result in a thermal barrier coating system exhibiting enhanced adherence for its constituent coatings. The method involves applying a laser beam (10) to a surface (12) of a solid material (14) to form a liquefied bed (16) on the surface of the solid material, then applying a pulse of laser energy (18) to a portion of the liquefied bed to cause a disturbance, such as a splash (20) or a wave (25) of liquefied material outside the liquefied bed. A three-dimensional anchoring structure (22) may thus be formed on the surface upon solidification of the splash or wave of liquefied material.
Claims7
A method comprising:
- applying a laser beam to a surface of a solid material to form a liquefied bed on the surface of the solid material;
- applying a pulse of 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 the surface of the solid material a three-dimensional anchoring structure upon solidification of the splash of liquefied material;
- wherein the applying of the pulse of laser energy to the portion of the liquefied bed is performed subsequent to the applying of the laser beam to the surface of the solid material;
- and
- wherein the applying of the laser beam to the surface of the solid material comprises a scanning by the laser beam over the surface of the solid material.
A method comprising:
- delivering a pattern of energy scanning a surface of a solid material to create a moving pool of liquefied material which re-solidifies along a trailing edge;
- and
- repeatedly impacting the moving pool of liquefied material with respective pulses of energy effective to create a respective plurality of anchoring structures across the surface as the pool moves and the surface re-solidifies.
A method comprising:
- applying a laser beam to a surface of a solid material to form a liquefied bed on the surface of the solid material;
- applying a pulse of 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 the surface of the solid material a three-dimensional anchoring structure upon solidification of the splash of liquefied material;
- wherein the applying of the pulse of laser energy to the portion of the liquefied bed is performed subsequent to the applying of the laser beam to the surface of the solid material;
- and
- further comprising depositing a layer on the surface of the solid material and anchoring the layer by the three-dimensional anchoring structure.
Dependencies are inferred from the claim text.