Abstract: A polyimide prepolymer blend including a first prepolymer component comprising a first polyimide oligomer having the formula E1-[R1]n-E1 and a second prepolymer component selected from M1, a second polyimide oligomer having the formula E2-[R2]n-E2, and combinations thereof; where R1 and R2 independently comprise: where n is from about 1 to about 5, V is a tetravalent substituted or unsubstituted aromatic monocyclic or polycyclic linking structure, R is a substituted or unsubstituted divalent organic radical. E1 and E2 independently comprise crosslinkable functional groups. M1 comprises a mixture of monomeric compounds including a diamine component, a dianhydride component, and an end group component. The prepolymer blend, prior to cure, provides at least one predetermined prepolymer blend property; and when cured under suitable cure conditions, the prepolymer blend provides a crosslinked polyimide matrix having at least one predetermined crosslinked matrix property.

Abstract: The present invention is ceramic matrix composite gas turbine engine component comprising a plurality of cured ceramic matrix composite plies, each ply comprising ceramic fiber tows, each ceramic fiber tow comprising a plurality of ceramic fibers, the tows in each ply lying adjacent to one another such that each ply has a unidirectional orientation. The component further comprises a layer of a coating on the ceramic fibers. The component further comprises a ceramic matrix material lying in interstitial regions between the fibers and tows of each ply and the interstitial region between the plurality of plies, wherein at least a portion of the component is no greater than about 0.021 inch thick. The present invention is also a method for making such a ceramic matrix composite component.

Abstract: The present invention is ceramic matrix composite gas turbine engine component comprising a plurality of cured ceramic matrix composite plies, each ply comprising ceramic fiber tows, each ceramic fiber tow comprising a plurality of ceramic fibers, the tows in each ply lying adjacent to one another such that each ply has a unidirectional orientation. The component further comprises a layer of a coating on the ceramic fibers. The component further comprises a ceramic matrix material lying in interstitial regions between the fibers and tows of each ply and the interstitial region between the plurality of plies, wherein at least a portion of the component is no greater than about 0.021 inch thick. The present invention is also a method for making such a ceramic matrix composite component.