Non-oxide selectively porous materials
AssigneeThe Boeing Company
InventorsMiklos Petervary, Min Berbon
Life of this patent
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Abstract
A process for providing pores in a structure and a structure according to any selected physical characteristics. Generally pins or pore forming members may be positioned in a laminate preform and the laminate preform formed into a laminate structure including the pins therein. The pins generally include a size, density, distribution, angle, or other characteristic that is desired in the final laminate structure. After the laminate is formed the pins are then removed from the laminate according to a process which does not harm selected physical characteristics of the laminate structure.
Claims27
A construct providing a desired degree and characteristic of porosity, comprising:
- a laminated substrate including a plurality of independent layers of material placed adjacent one another;
- a plurality of pores formed in said laminated substrate by the placement of a plurality of pore forming members in at least a selected one of said plurality of independent layers of material prior to forming said laminated substrate;
- and
- wherein said plurality of pore forming members are held in said selected plurality of independent layers of material until said laminated substrate is fully formed and then destroyed in said laminated substrate to form said pores.
A construct for a structure including a substantially selected porosity, comprising:
- a laminate preform including a plurality of layers of material operable to be processed into a laminated structure;
- a member operable to be positioned at least partially through said laminate perform, wherein the member includes a selected profile such that a pore left in said laminated structure by said member allows a substantially uni-directional flow of a flowable material;
- wherein the member is operable to be destroyed from within said laminated structure to form a pore in said laminated structure with at least one of substantially little oxidation and degradation to the laminated materials;
- a structure operable to be disposed adjacent to said laminated structure;
- and
- wherein the flowable material is operable to move through the pore in the laminated structure to cool said structure.
A construct including panel providing a desired degree and characteristic of porosity, comprising:
- a substantially coherently laminated structure formed from a substantially oxide-free fabric stack;
- and
- a pin operable to be placed into the fabric stack, said pin having a selected profile such that a selected pore remaining in said laminated structure allows for substantially uni-directional flow of a flowable material through the laminated structure;
- wherein the pin is removed from the laminated structure to form the substantially selected pore in the laminated structure.
A method of forming a laminated panel having a plurality of uni-directional pores, comprising:
- forming a laminate preform including a plurality of layers of material;
- disposing a plurality of pore forming members in said laminate preform in a selected pattern;
- processing said laminate preform to form a laminated structure;
- and
- abolishing the pore-forming members in the laminated structure to form a plurality of uni-directional pores in said laminated structure.
Dependencies are inferred from the claim text.