The metallic glass ribbons of Ni36.5Zr63.5 were prepared by melt spinning. The samples have a large frozen-in structural disorder and in comparison with their crystalline state, a very high electrical resistivity. They are metastable and they relax structurally towards more stable state whenever atoms attain noticeable mobility. As the most structurally sensitive property the electrical resistivity of these samples was used to follow the relaxation process from room temperature to 673 K. To complete the investigation of structural relaxation the electrical resistance of as-quenched, annealed and about twenty years aged Ni36.5Zr63.5 samples was measured in the temperature range from 77 K to 275 K. The obtained results were presented graphically.
In this paper the temperature dependence of the magnetic susceptibility of an amorphous multicomponent ferromagnetic system was reported. The tests were conducted in the temperature range from 77 to 180 K, and the obtained results were compared with those of relaxed samples of the same composition. The aim of the investigations was to get more information on the structural characteristics of the system, as well as to establish and confirm the existence of early metastable states in the samples frozen at the temperature of liquid nitrogen. For the purpose, a special sensitive method for measuring a.c. magnetic susceptibility was developed, which enabled a simultaneous measurement of the real and the imaginary component of the susceptibility. The obtained results are presented graphically.
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