Light scattering by the surface of amorphous alloy ribbons modified by annealing and cryogenic treatment

Autor: Sergiy Lysenko, K. L. Vinnichenko, L. V. Poperenko
Rok vydání: 2004
Předmět:
Zdroj: Optics and Spectroscopy. 96:292-297
ISSN: 1562-6911
0030-400X
Popis: The modification of the microrelief and structure of the surface layers of ribbons of an amorphous metal alloy based on iron and cobalt after thermal treatment at elevated and cryogenic temperatures and under the action of an external magnetic field is studied by the method of light scattering. The parameters of the surface roughness were calculated from the experimentally found indicatrices of light scattering. It is shown that heating of the metal ribbons to T=650–750 K partially relieves stresses arising in the course of the ribbon preparation and reduces the surface roughness as compared to that of freshly prepared samples. Cryogenic treatment at T=78 K increases the surface roughness, and application of a magnetic field to a ribbon causes anisotropy in the surface layer due to the magnetostrictive effect.
Databáze: OpenAIRE