“…The principal criteria for the choice of the inert matrix are: chemical compatibility with the fuel, mechanical and irradiation resistance, thermal properties allowing high gas temperatures and total retention of fission products (FP) during the in-pile process. The ability of titanium nitride to act as a diffusion barrier in microelectronic applications [14][15][16][17] combined with its mechanical and thermal properties [18][19][20][21][22] make it relevant as an inert matrix.…”