Ceramic matrix composite component including counterflow channels and method of producing

A ceramic matrix composite component, comprising:

• a plurality of longitudinally extending ceramic matrix composite plies forming a densified body;
• a first plurality of cooling channels formed therein the densified body and defining an aft flowing fluid flowpath from a fluid source to an exterior of the ceramic matrix composite component, wherein each of the first plurality of cooling channels comprises a portion that is configured longitudinally extending, in alignment with the plurality of longitudinally extending ceramic matrix composite plies, and is disposed between and directly adjacent to two adjacent plies of the plurality of longitudinally extending ceramic matrix composite plies, and each of the first plurality of cooling channels having an inlet configured in cross-ply configuration;
• and
• a second plurality of cooling channels formed therein the densified body and defining a forward flowing fluid flowpath from a fluid source to an exterior of the ceramic matrix composite component, wherein each of the second plurality of cooling channels comprises a portion that is configured longitudinally extending, in alignment with the plurality of longitudinally extending ceramic matrix composite plies, and is disposed between and directly adjacent to two adjacent plies of the plurality of longitudinally extending ceramic matrix composite plies, having an inlet configured in cross-ply configuration,
• wherein the first plurality of cooling channels and the second plurality of cooling channels are configured in alternating flow configuration.

A method of forming a ceramic matrix composite (CMC) product the method comprising:

• forming a CMC preform comprising a matrix precursor, a plurality of longitudinally extending reinforcing fibers, and a plurality of sacrificial fibers, wherein each of the plurality of longitudinally extending sacrificial fibers has a portion that is disposed between and directly adjacent to two adjacent reinforcing fibers of the plurality of longitudinally extending reinforcing fibers;
• performing one of:
• removing the plurality of sacrificial fibers such that a plurality of elongated functional features are formed along the CMC preform in a counterflow configuration;
• or
• applying a fluid infiltrant to the CMC preform thereby densifying the CMC preform, and
• performing the other of:
• removing the plurality of sacrificial fibers such that a plurality of elongated functional features are formed along the CMC preform in a counterflow configuration;
• or
• applying a fluid infiltrant to the CMC preform thereby densifying the CMC preform.