Mechanical spectroscopy study in commercial grain oriented silicon steel

Mechanical spectroscopy measurements were performed in commercial grain ori ented silicon steel to study the outstanding features of modulus and dampin g spectrum. A relation between the features of the damping and modulus beha viour with the grain boundaries characteristics will be established. It sho uld be pointed out that the elastic modulus shows an anomalous step at arou nd 800 K. The physical mechanism involved in this process will be studied. A cooperative mechanism involving dislocations will be proposed. Besides th is, the magnetic characterization of the samples also will be determined. ( C) 2000 Kluwer Academic Publishers.