Abstract:
Processes and systems are described herein for forming cooling channels (314) within a ceramic matrix composite component (300). The process introducing a ceramic material (18, 32) into a solid fiber material (14, 46) to produce a ceramic fiber composite (24, 48) and depositing the ceramic fiber composite (24, 48) in a predetermined pattern to form at least a portion of the ceramic matrix composite component (300) having a plurality of internal cooling channels (314) formed therein.
Abstract:
A component (10) is disclosed having an outer surface (22) of a ceramic matrix composite material (12), wherein the outer surface (22) is part of a thermal protective layer (24) that is 10-50% of a total 3D CMC thickness. The component further includes an inner surface (23) of the ceramic matrix composite material (12). Reinforcing fibers (20) extend throughout the ceramic matrix composite material (12), wherein the reinforcing fibers (20) extend unitarily or interconnectedly from the outer surface (22) to the inner surface (23).
Abstract:
There is provided a ceramic matrix composite component (10) having a body (12) comprising a ceramic matrix composite material (14) and a plurality of grooves (24, 25, 26) extending from a top surface (16) of the body (12) and into the body (12). An insert (27, 30, 32) of a crystallized glass material (28) is disposed within respective ones of the plurality of grooves (24, 25, 26). The inserts (27, 30, 32) of crystallized glass material (28) are effective to at least increase an interlaminar strength of the ceramic matrix composite material (14).
Abstract:
A refractory ceramic component (10) for a gas turbine engine (100) is employed that is more cost effective than typical components used in the gas turbine engine (100). The refractory ceramic component (10) may include a refractory ceramic liner (12) that is easily replaceable. The refractory ceramic liner (12) may be a unitary construction or made of numerous bricks (15) that are interlocked. The ceramic used is a refractory oxide material.
Abstract:
A ducting arrangement (10), including: an annular duct (38) having a plurality of discrete IEPs (18) secured together to form the annular duct that defines an annular chamber (14) configured to deliver an annular flow of combustion gases directly onto turbine blades without a turning vane, wherein the annular duct defines a chamber mid-annulus (98); an IEP intermediate portion (34) for each IEP, each IEP intermediate portion defining a respective intermediate flow path (48) in fluid communication with the annular chamber and defining an intermediate flow path axis (192); and a cone (16) for each IEP intermediate portion, each cone defining a cone flow path (46), the cone flow path defining a cone flow path axis (190). When viewed from upstream toward downstream along a longitudinal axis (134) of the gas turbine engine each cone flow path axis intersects a respective intermediate flow path axis (192).
Abstract:
There are provided ceramic matrix composite structures (100) and processes for making the same that reduce anisotropic sintering shrinkage via the ceramic particles (100, 116, 118, 120) utilized for the matrix portion of the ceramic matrix composite structure (100). Ceramic particles of two different sizes with a difference in size of a factor of 100 are impregnated into the plurality of fiber layers.
Abstract:
There is provided a component (100) a ceramic matrix composite portion (58) having a three dimensional surface (68). The ceramic matrix composite portion (58) further includes a ceramic matrix reinforced with a three-dimensional ceramic fiber material (83). In addition, the component (100) includes a metal portion (60) comprising a three dimensional surface (72) that interfaces with the three dimensional surface (68) of the ceramic matrix composite portion (58) to enable thermal and mechanical load transfer between the ceramic matrix composite portion (58) and the metal portion (60).
Abstract:
An airfoil (30) for a turbine (10), wherein the airfoil (30) includes leading (36) and trailing (38) edges and high (40) and low (42) pressure surfaces. The airfoil (30) includes a core support structure (34) having first (46) and second (54) support sections that include first (50) and second (56) air inlets, respectively. The airfoil (30) also includes at least one first air channel (62) that extends from the first air inlet (50) and through the first support section (46) to an associated air exit hole (60). In addition, the airfoil (30) includes at least one truss (58) connected between the first (46) and second (54) support sections and at least one second air channel (66) that extends from the second air inlet (56) and through the second support section (54), truss (58) and first support section (46) to an associated air exit hole (60). Further, the airfoil (30) includes a high heat resistant outer shell (32), wherein a portion (48) of the core support structure (30) is located within the outer shell (32). The outer shell may include first and second high heat resistant members.
Abstract:
A hybrid component (45) is provided including a plurality of laminates (10) stacked on one another to define a stacked laminate structure (58). The laminates (10) include a ceramic matrix composite material (22) and at least one opening (24) defined therein. A metal support structure (56) may be additively manufactured through each opening (24) so as to extend through the stacked laminate structure (58).
Abstract:
There is provided a reinforced ceramic matrix composite component (30) and a method (100) for making the same, the components (30) having an airfoil (32) having fiber material (62) hosted with a ceramic matrix (63), the fiber material (62) woven in successive layers about spanwise extending reinforcement members (55) to define the airfoil (32).