Magnetic properties of quasicrystalline Al65Cu22Fe13 powders synthesized by solid-phase diffusion

The magnetic properties of quasicrystalline Al₆₅Cu₂₂Fe₁₃ powders synthesized by solid-phase diffusion as a result of thermal treatment in vacuum and in a hydrogen atmosphere have been studied. The magnetic properties of the samples synthesized in hydrogen were found to be much better than those of the samples synthesized in vacuum. It is shown that an increase in the treatment time in vacuum decreases the number of magnetic nanoclusters and elimninates the time instability of their magnetic properties (magnetic susceptibility and magnetization).