Abstract : Fully dense (97%) aluminium nitride obtained by pressureless sintering with CaO additive (1wt%) has been studied in water vapour in the range 1300-1450°C. The oxidation resistance is similar to that in oxygen, though the hydrogen produced at the inner interface (AlN-oxide) during the reaction opens the microstructure of the scale products. As a consequence, kinetics are controlled by a linear mechanism with an activation energy of 55 Kcal/Mole probably in connection with the break of Al-N bonds (54 Kcal/Mole).
Said yefsah, Michel Billy, Jean Jarrige, Jacques Mexmain, Françoise Nardou, et al.. Comportement dans la vapeur d'eau à haute température du nitrure d'aluminium fritté.. Annales de Chimie - Science des Matériaux, Lavoisier, 1985, 10, pp.79. ⟨hal-01878369⟩