Aerospace Technology

maybe... everything but the C 1 disc ..

First thing that comes to mind is impact resistance and tensile strength compared to metals. How does ceramic stand up under centrifugal tension at temperature?

*memory jog *

found some photo's at Pratt & Whitney..hot section.. ..may have been GE..and the GE 90 .i was looking at another part of the engine..but maybe on that one as well,

Yeah, definitely. One thing is a thermobarrier in the combustor or turbine blade coating or compressor blade coating as said here. But... what about the disks? And the couplings? And shafts along with tie rods and similar matters? Ok, we are talking about maybe a different design - something that really differs to the current state-of-the-art and engines arrangement. And besides, it is clear that better performance relies on higher operating temperatures possible due to the ceramics. But the higher temperature does not occur through all the engine. So, what would be the reason for applying such material in cold areas (or not submitted to the higher operating temps)?

In my opinion, 'cold' areas would be better suited to appropriate non-heat critical materials. Kinda silly to have the wooden car be made completely out of rubber when you only need it on the tires. ;-)

what do you think,, wouldn't be the 1st time i thought 1 thing said the inverse...

the ge 90 has composite n1 blades and the newer 90 series is said to now have ceramic t2 and t3 blades all P&W t1 and t2 blades have been ceramic coated for years