APPARATUS FOR THE ELASTIC PROPERTIES MEASUREMENT OF MATERIALS AND METHOD THEREFOR

摘要

Knowledge of the elastic properties of materials is of prime importance. These properties do not only reflect the extent of bonding in the material, but also permit characterization of its behaviour under stress . For heterogeneous materials such as refractories and carbon electrodes, the measurement of such properties is difficult to achieve with high level o f repeatability. The present invention is directed to a novel method and apparatus allowing the measurement of the Elastic and Shear Modulus, as well as the Poisson's ratio of heterogeneous materials, at room and high temperature, according to a non destructive acoustic technique.