| | 1 | Author
| M. Sorescu, E. T. Knobbe | Requires cookie* | | | Title
| Mössbauer Spectroscopy Evidence for Phase Selectivity in Excimer Laser Induced Amorphization of Thermally Annealed FeCoBSi Metallic Glass  | | | | Abstract
| Pulsed excimer laser irradiation effects (/. = 308 nm, T = 10 ns, w = 3 J/cm 2 , N = 2 laser pulses/ spot, repetition rate 1 Hz) on the magnetic properties and phase composition of thermally annealed Fe 66 Co 18 B 15 Si 1 metallic glass have been studied by transmission and conversion electron Möss-bauer spectroscopy (CEMS). Radiation-driven surface modifications were examined by scanning electron microscopy (SEM). Excimer laser induced amorphization was observed in partially crystal-lized Fe 66 Co 18 B 15 Si 1 samples (7" A = 648 K, r A = 1 hour) and was found to be accompanied by the development of laser-induced magnetic anisotropy. In totally crystallized Fe^Co^B^Si! speci-mens (T A = 723 K, = 1 hour), the effect of excimer laser induced amorphization exhibited phase selectivity with respect to the crystalline components of the alloy system. When compared to bulk data, a different behavior of the surface magnetic texture and relative abundance of alloy phases was observed. The laser-induced phase transformation of thermally annealed Fe 66 Co 18 B 15 Si 1 specimens was shown to consist of partial amorphization and surface oxidation of the irradiated material. | | | |
Reference
| Z. Naturforsch. 51a, 389—395 (1996); received February 3 1996 | | | |
Published
| 1996 | | | |
Keywords
| Metallic glasses, Laser processing, Phase transformations, Magnetic properties, Möss-bauer spectroscopy | | | |
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| default:Reihe_A/51/ZNA-1996-51a-0389.pdf | | | | Identifier
| ZNA-1996-51a-0389 | | | | Volume
| 51 | |
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