Crystallization, Transport and Magnetic Properties of the Amorphous (Fe sub(1-x)Mn sub(x)) sub(75)P sub(15)C sub(10) Alloys

The amorphous (Fe1-xMnx)75P15C10 (0 less than or equal to x greater than or equal to 0.30) alloys were prepared by the standard melt spinning technique and investigated their crystallization, thermal, transport and magnetic properties. Crystallization was observed from 400 to 650 with an interval 50...

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Bibliographic Details
Published in:Journal of crystallization process and technology 2012-07, Vol.2 (3), p.105-110
Main Authors: Kamruzzaman, Md, Karal, MdAbu Sayem, Saha, Dilip Kumar, Khan, Feroz Alam
Format: Article
Language:English
Subjects:
Alloys
Annealing
Crystallization
Lattice parameters
Magnetic properties
Manganese
Melt spinning
Permeability
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Summary:The amorphous (Fe1-xMnx)75P15C10 (0 less than or equal to x greater than or equal to 0.30) alloys were prepared by the standard melt spinning technique and investigated their crystallization, thermal, transport and magnetic properties. Crystallization was observed from 400 to 650 with an interval 50within 30 minutes annealing time by XRD. The as-cast samples were amorphous in nature. Annealing 400 to 450 samples showed the mixed bcc Fe and amorphous structures. The lattice parameter 'a' was varied from 2.855 to 2.859 Aa but above 450, samples contained hexagonal, FeP and FeC structures. The lattice parameters 'a' and 'c' were varied from (5.016-5.036) Aa and (13.575-13.820) Aa , respectively. Average crystallite size was found to vary from 8 to 48 nm. Crystallization temperature and weight change were observed by differential thermal analysis and thermogravimetric analysis, respectively. Crystallization temperature was increased with increasing Mn content. Resistivity was increased above and bellows the Curie temperature. Real permeability remained almost constant upto around 106 Hz for of all samples after that it was decreased with increasing frequency and it was also decreased with Mn, whereas imaginary permeability was increased sharply above frequency 107 Hz. The value of saturation magnetization was found to decrease with increment Mn.
ISSN:2161-7678
2161-7686
DOI:10.4236/jcpt.2012.23013