A component (10) for a gas turbine engine formed of a stacked plurality of
ceramic matrix composite (CMC) lamellae (12) supported by a metal support
structure (20). Individual lamellae are supported directly by the support
structure via cooperating interlock features (30, 32) formed on the
lamella and on the support structure respectively. Mating
load-transferring surfaces (34, 36) of the interlock features are
disposed in a plane (44) oblique to local axes of thermal growth (38, 40)
in order to accommodate differential thermal expansion there between with
delta alpha zero expansion (DAZE). Reinforcing fibers (62) within the CMC
material may be oriented in a direction optimized to resist forces being
transferred through the interlock features. Individual lamellae may all
have the same structure or different interlock feature shapes and/or
locations may be used in different groups of the lamellae. Applications
for this invention include an airfoil assembly (10) and a ring segment
assembly (82).