| 摘要 |
<p>A component (10) formed at least in part by a CMC material and equipped with an integrally-formed surface feature (18), such as an airflow enhancement feature in the form of a turbulator or flow guide. The CMC material comprises multiple sets of tows (20,22) woven together to form a preform (28) that is infiltrated with a matrix material. The surface feature (18) is integrally defined at a surface (14) of the cooling passage (12) by an insert member (24,26) disposed between adjacent tows (20) of at least one of the tow sets. The insert member (24,26) has a cross-sectional size larger than the adjacent tows (20), forming a protrusion (30) in the preform (28) that defines the surface feature (18) in the infiltrated, consolidated and cured CMC material. <IMAGE> <IMAGE></p> |
