Unveiling the origin of diffusion suppression of hydrogen isotopes at the α-Al2O3(0001)/α-Cr2O3(0001) interfaces

Yuji Kunisada, Ryotaro Sano, Norihito Sakaguchi

It has been reported that the α-Al2O3, a promising tritium permeation barrier material for a fusion reactor, can be grown at low temperatures on the α-Cr2O3 template, and that α-Al…