Interaction of alpha particle beams with Fe-based and FeNi-based glassy ferromagnets
- Duquesne Univ., Pittsburgh, PA (United States). Physics Dept.
- Inst. of Atomic Physics, Bucharest (Romania)
Samples of Fe{sub 78}B{sub 13}Si{sub 9} and Fe{sub 40}Ni{sub 38}Mo{sub 4}B{sub 18} metallic glasses were irradiated with alpha particle beams (W = 2.8 MeV) using radiation doses of 10{sup 16} and 10{sup 17} cm{sup {minus}2}. Irradiation-induced effects on the magnetic texture and phase composition of alloy samples were studied by Moessbauer spectroscopy. Related morphological changes and resultant crystalline precipitates were characterized by scanning electron microscopy. The evolution of phases and microstructure during the radiation-induced amorphous-to-crystalline transformation was found to depend on the particle flux and sample composition. The lowest radiation dose employed was found to be more effective in inducing amorphous-to-crystalline transformations in both ferromagnetic alloys studied. In addition, the FeNi-based amorphous system investigated was found to be more stale than the Fe-based metallic glass, exposed to the same particle-beam irradiation conditions. By stimulating unconventional pathways for the crystallization process, the interaction of alpha particle beams with glassy ferromagnets offers unique opportunities to understand the fundamentals of nucleation and growth in amorphous magnets.
- OSTI ID:
- 477391
- Report Number(s):
- CONF-951155-; ISBN 1-55899-299-5; TRN: 97:009406
- Resource Relation:
- Conference: Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 27 Nov - 1 Dec 1995; Other Information: PBD: 1996; Related Information: Is Part Of Ion-solid interactions for materials modification and processing; Poker, D.B. [ed.] [Oak Ridge National Lab., TN (United States)]; Ila, D. [ed.] [Alabama A and M Univ., Normal, AL (United States)]; Cheng, Y.T. [ed.] [General Motors Corp., Warren, MI (United States)]; Harriott, L.R. [ed.] [AT and T Bell Labs., Murray Hill, NJ (United States)]; Sigmon, T.W. [ed.] [Arizona State Univ., Tempe, AZ (United States)]; PB: 923 p.; Materials Research Society symposium proceedings, Volume 396
- Country of Publication:
- United States
- Language:
- English
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