Process for producing ceramic composite components

摘要

A process for producing components containing ceramic materials. The process entails forming a first region of a component with plies containing a reinforcement material in a precursor of a ceramic material. The plies include at least a first set of plies between at least second and third sets of plies. Distal portions of the second and third sets of plies are then folded away from the first set of plies so that they are oriented transverse to the first set of plies. A fourth set of plies is then interleaved among the folded distal portions of the second and third sets of plies.

主权项

1. A process for producing a component comprising a first region, and at least a second region having at least one off-axis geometric feature that results in the second region having more complex geometries than the first region, the process comprising:
forming the first region of the component with plies containing a reinforcement material in a precursor of a ceramic material, the plies comprising at least a first set of plies between at least second and third sets of plies; splitting and/or trimming at least some of the plies of the second and third sets of plies thereby introducing voids in the second region; folding distal portions of the second and third sets of plies away from the first set of plies so that the folded distal portions of each of the second and third sets of plies are oriented transverse to the first set of plies within the first region of the component; filling the voids in the second region between split portions and/or adjacent trimmed portions of the second and third sets of plies with additional insert ply sections sized and shaped to fill the voids; interleaving plies of a fourth set of plies among at least some of the folded distal portions of the second set of plies and among at least some of the folded distal portions of the third set of plies; and then consolidating and curing the first, second, third, and fourth sets of plies so that the first set of plies and portions of the second and third sets of plies that were not folded away from the first set of plies define the first region of the component, and so that the folded distal portions of the second and third sets of plies and the fourth set of plies interleaved therewith define the second region of the component.