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Moessbauer studies of nanocrystalline Fe{sub 83}B{sub 9}Nb{sub 7}Cu{sub 1} alloy by flash annealing

Journal Article · · IEEE Transactions on Magnetics
OSTI ID:566400
; ; ;  [1];  [2];  [3];  [4]
  1. Kookmin Univ., Seoul (Korea, Republic of). Dept. of Physics
  2. Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Div. of Metals
  3. Andong National Univ. (Korea, Republic of). Dept. of Metallurgical Engineering
  4. Yonsei Univ., Seoul (Korea, Republic of). Dept. of Physics
+ Show Author Affiliations

Melt-spun Fe{sub 83}B{sub 9}Nb{sub 7}Cu{sub 1} alloy with ultrathin ribbon has been studied with Moessbauer spectroscopy and X-ray diffraction. The enhanced magnetic property of the flash-annealed alloy was attributed to the reduced {alpha}-Fe phase grain size to 6 nm and the higher effective permeability and smaller magnetic core loss at 1 MHz than conventional annealed alloys. The occupied area of the nanocrystalline phase at the optimum 773 K is about 73% whereas that for conventional annealing temperature at 893 K is about 71%. The flash annealing technique was effective in improving the high-frequency soft magnetic property of nanocrystalline Fe{sub 83}B{sub 9}Nb{sub 7}Cu{sub 1} alloy.

Sponsoring Organization:
Korea Ministry of Education (Korea)
OSTI ID:
566400
Report Number(s):
CONF-970468--
Journal Information:
IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 5Pt2 Vol. 33; ISSN IEMGAQ; ISSN 0018-9464
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
AMORPHOUS STATE
BORON ALLOYS
COPPER ALLOYS
EXPERIMENTAL DATA
IRON BASE ALLOYS
MAGNETIC PROPERTIES
MICROSTRUCTURE
MOESSBAUER EFFECT
NIOBIUM ALLOYS