read this? Other, non-CMC parts for the GE9X under evaluation include the next-generation HPT stage 1 blades with new cooling technology and low-pressure turbine titanium aluminide (TiAl) blades produced at Avio Aero, a GE Aviation business, using a new 3-D additive manufacturing process. http://www.ainonline.com/aviation-news/aerospace/2015-03-03/ge-starts-ground-testing-cmc-parts-ge9x