CRYSTALLIZATION AND MAGNETIC-PROPERTIES OF CONBBCU METALLIC GLASSES

Rapidly quenched alloy of nominal composition Co68Nb10B30Cu2 has been chosen as the parent material for nanocrystalline magnets exhibiting C urie temperature of the residual amorphous matrix much lower than room temperature. Characteristic feature of these magnets is that the crea ted ferromagnetic crystals are embedded in the paramagnetic amorphous matrix for the measuring temperatures in their relatively very wide ra nge between both Curie points of the residual amorphous matrix and the crystals. Crystallization and microstructural properties of a series of the nanocrystalline magnets produced at different temperature of an nealing have been studied and the results obtained are shown. Similarl y, basic magnetic properties of the nanocrystalline samples are also p resented. The main conclusion drawn is that the magnets considered are suitable for the studies of magnetic properties of the crystals thems elves and their mutual interaction through paramagnetic matrix, in par ticular.