Détermination par extensométrie et mesures ultrasonores des six constantes elastiques du cristal Al₂Cu (π). Duscussion de l'anisotropie

Static strain-gauge extensometry and ultrasonic velocity measurements have been carried out on CuAl₂ single-crystal samples of known orientation in order to determine the value of the six elastic constants. The apparent Young's modulus over all the space directions is derived. Young's modulus and Poisson's ratio of the nearest isotropic body are also calculated.