The influence of periodical, interference laser micromachining on nano-crystallization of amorphous magnetic ribbons

Abstract

Abstract-The main problem connected with crystallization of amorphous magnetic materials from the FeSiB(X) group is the increase of their fragility with an increasing content of the crystalline phase. To overcome this defect the possibilities offered by the interference, pulse laser heating of FeSiB ribbons were utilized. A simple interference prismatic system at the output of Nd:YAG laser (8-10ns, 2J, 1064nm) was used. The investigations included the influence of laser radiation energy density, number of laser pulses and their periodical spatial surface arrangement on the crystallization process.

Archives of Metallurgy and Materials

“…Moreover, application of PLIH process may provide, at the same time, crystallization in thousands microareas/dots, what allows to form two-dimensional micro-islands of laser crystallized material, periodically placed in amorphous matrix. Indeed, as results one can obtained the desired structure and properties [3,10,11].…”

“…Laser beam affect and create interference image (line or dots) at sample surface. This very precise technique allows to create periodically placed laser heated microareas/dots in which modification of structure and properties occurs [1][2][3][4]. Production of periodic nanostructures, uniformly distributed over large areas, makes the PLIH a fast developing tool for investigations of numerous technological processes [1].…”

“…Application energy of laser beam to amorphous ribbon heat treatment can force structure and properties changes [3,10,11]. Laser treatment is characterized by rapid heating and cooling rates what allow to achieve desired temperature.…”