Electron microscopy of Co/Fe/B/Si amorphous alloys
- Univ. of California, Berkeley
Changes in magnetic structures with annealing are studied using Lorentz electron microscopy and are correlated with changes in magnetic properties for the Co/sub 71/./sub 4/Fe/sub 4/./sub 6/Si/sub 9/./sub 6/B/sub 14/./sub 4/ amorphous alloy. Domain wall stabilization is shown to be the dominant factor resulting in decreasing ..mu.. and increasing H/sub c/ and K during low temperature annealing. Annealing near T/sub c/ results in an isotropic magnetic structure due to domain wall relaxation, and annealing above T/sub cry/ results in magnetically hard crystalline particles. It is concluded that treatments capable of producing a magnetically isotropic structure can produce the best soft magnetic materials.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5740436
- Journal Information:
- IEEE Trans. Magn.; (United States), Vol. MAG-16:5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BORON ALLOYS
MAGNETIC PROPERTIES
COBALT BASE ALLOYS
IRON ALLOYS
SILICON ALLOYS
AMORPHOUS STATE
ANNEALING
DOMAIN STRUCTURE
ELECTRON MICROSCOPY
ALLOYS
COBALT ALLOYS
HEAT TREATMENTS
MICROSCOPY
PHYSICAL PROPERTIES
360102* - Metals & Alloys- Structure & Phase Studies
360104 - Metals & Alloys- Physical Properties