High temperature erosion resistant coating and material containing compacted hollow geometric shapes
AssigneeSiemens Power Generation, Inc.
InventorsGary Brian Merrill, Jay Alan Morrison
Life of this patent
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Abstract
A material system (60) contains close packed hollow shapes (50, 70) having a dense wall structure (52, 66), which are bonded together and which may contain a matrix binder material (56) between the shapes, where the system has a stable porosity, and is abradable and thermally stable at temperatures up to possibly 1700° C., where such systems are useful in turbine apparatus.
Claims20
A high temperature thermal barrier coating material for a turbine component, comprising:
- a three-dimensional array of generally contacting ceramic geometric shapes having a packing density of 20% to 85%, the ceramic shapes having a wall structure density of 70% to 1000% a and a wall thickness of 50 to 500 micrometers;
- and
- a binder disposed within the array and among the ceramic shapes to bind the ceramic shapes together within the array,
- wherein the thermal barrier coating material is thermally stable at temperatures up to 1600° C.
A high temperature material system adapted for use on a turbine component, comprising:
- a three-dimensional array of generally contacting ceramic geometric shapes having a packing density of 20% to 85%, the ceramic shapes having a wall structure density of 70% to 100% and a wall thickness of 50 to 500 micrometers;
- and
- a filler disposed within the array and among the ceramic shapes to interconnect the ceramic shapes within the array,
- wherein the material system is thermally stable at temperatures up to 1600° C.
A high temperature resistant turbine component, comprising:
- a component selected from the group consisting of:
- blade, vane, transition, combustor, and seal;
- and
- a high temperature coating applied to the component, the coating comprising:
- a three-dimensional array of generally contacting ceramic geometric shapes having a packing density of 20% to 85%, the ceramic shapes having a wall structure density of 70% to 100% and a wall thickness of 50 to 500 micrometers;
- and
- a binder or filler disposed within the array and among the ceramic shapes to bind or interconnect the ceramic shapes together within the array.
Dependencies are inferred from the claim text.