LASSELET, Fayrouz2019-02-242019-02-242014-06-19https://repository.univ-msila.dz/handle/123456789/9175In this work, we have used ab initio calculations based on the density functional theory (DFT) combined with the pseudo potential , also the local density approximation (LDA) et (GGA), in the role to calculate the structural and elastics proprieties of aluminum nitride AlN witch crystallize in the zinc blend phase .the effect of pressure on these properties is also reported. The obtained results are in very good agreement with the values calculated by the other searches.frPP-PW, LDA, GGA, DFT, pressure, elastic constantsThesis