In this study, we report formation of weblike fibrous nanostructure and nanoparticles of magnetic neodymium-iron-boron (NdFeB) via femtosecond laser radiation at MHz pulse repetition frequency in air at atmospheric pressure. Scanning electron microscopy (SEM) analysis revealed that the nanostructure is formed due to aggregation of polycrystalline nanoparticles of the respective constituent mate...

Many materials and electronics need to be tested for the radiation environment expected at linear colliders (LC) where the accelerator and detectors will be subjected to large fluences of hadrons, leptons and γ’s over their life[1]. Examples are NdFeB magnets considered for the damping rings and final focus, electronic and electro-optical devices to be utilized in detector readout and accelerat...

Ferromagnetic nanoparticles are building blocks of future high density recording media and high performance permanent magnets. However, it is very challenging to produce nanoparticles with ferromagnetism at room temperature. The author describes recent progress in preparing ferromagnetic nanoparticles. Ferromagnetic nanoparticles can be used as building blocks for advanced bulk and thin fi lm m...

In this study, the effect of flash annealing heat treatment applied at 680 oC for 5 minutes on magnetic properties NdFeB-based permanent magnet alloys produced by melt spinning method, which is one fast solidification methods, was investigated using a very heating and cooling rate 300 K/s. The obtained results showed that there remarkable improvement in with treatment. Mainly, hard were optimiz...