High Permeability Properties of Amorphous Co-Fe Base Alloys
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Abstract
Amorphous alloys of (Fe_<1-x>Co_x)_<80>P_<13>C_7 and (Fe_<1-x>Co_x)_<75>Si_<15>B_<10> were prepared by rapid quenching from the melt by using two solidification techniques of centrifugal and roller types. Specimens were ribbons in form. Measurements were made of B-H hysteresis loop, effective permeability at high frequencies, longitudinal magnetostriction, electrical resistance, Vickers hardness and tensile strength. The magnetostriction is zero at a composition near x=0.94, being positive in the range of 0<x<0.94 and negative in the range of 1>x>0.94. The alloy of Fe_<4.7>Co_<70.3>Si_<15>B_<10> having a nearly zero magnetostriction exhibits the best soft magnetic properties ; the coercive force is 0.006 Oe and the maximum permeability is about 820×10^3 after annealing at 150℃ in a magnetic field. In addition, this alloy has a high effective permeability at higher frequencies up to about 100 kHz, high hardness and high tensile strength.
Journal
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- Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy
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Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy (26), 294-294, 1976
Tohoku University
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Details 詳細情報について
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- CRID
- 1572824501825013376
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- NII Article ID
- 110004638837
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- NII Book ID
- AA00836167
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- ISSN
- 00408808
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- Web Site
- http://hdl.handle.net/10097/27872
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- Text Lang
- en
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- Data Source
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- CiNii Articles