Did not the new Silicon-Carbide base material make a big leap for heat management?
The development of atomic power, though it could confer unimaginable blessings on mankind, is something that is dreaded by the owners of coal mines and oil wells. (Hazlitt)
What I want to do is to look up C. . . . I call him the Forgotten Man. (Sumner)
I think there is some problems with finding materials with similar expansion coefficient to prevent delamination problems. but several solutions are in the works.
I am not a nuclear physicist, but play one on the internet.