In November I’ve made the first attempt of in situ production of AlN reinforcement in aluminium matrix using liquid Al and Mg3N2. For that purpose I placed a few green compacts of Mg3N2 powder on the bottom of an alumina crucible (in an induction furnace, under inert atmosphere) and covered it with a piece of aluminium ingot. Then I heated the crucible up to about 900^C allowing the reaction between Al and Mg3N2 to occur. Although a final product contained, as I wished, an aluminium nitride phase, a microstructure of the composite was highly inhomogeneous.