Patent ID: 8057880

Claim:
A construct for a structure that has a selected porosity, comprising: a laminate preform including a plurality of layers of non-oxide material operable to be processed into a laminated structure wherein the laminated structure includes the selected porosity; a member formed of glass to be positioned at least partially through said laminate preform without disrupting a reinforcing fiber in the non-oxide material to allow formation of the selected porosity, wherein the member includes a profile having a first dimension at a first end and a second dimension lesser than the first dimension at a second end such that a pore left in said laminated structure by said member has a third dimension equivalent to said first dimension at a first end near a first side of said laminated structure and a fourth dimension equivalent to said second dimension at a second end at a second side of said laminated structure and allows a substantially uni-directional flow of a flowable material; wherein the member is removed from within said laminated structure only after curing of said laminate preform to form the laminated structure and to form the selected porosity in said laminated structure with substantially little oxidation or degradation to the laminated structure; wherein a structure is operable to be disposed adjacent to said laminated structure, wherein the flowable material is operable to move through the selected porosity in the laminated structure to cool said structure.