Effect of thermal treatment on the microstructure and magnetic properties of a bulk amorphous Fe72Al5P10Ga2C6B4Si1 alloy |
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| Authors: | G E Abrosimova A S Aronin Yu P Kabanov D V Matveev V V Molokanov and O G Rybchenko |
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| Institution: | (1) Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia;(2) Baikov Institute of Metallurgy and Materials Sciences, Russian Academy of Sciences, Leninskii pr. 49, Moscow, 117911, Russia |
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| Abstract: | The structure and chemical composition of the phases that form in the controlled crystallization of a bulk amorphous Fe72Al5P10Ga2C6B4Si1 alloy are studied by differential scanning calorimetry, transmission electron microscopy, and x-ray diffraction. It was established
that, when the alloy is annealed at a temperature above the glass transition point, a nanocrystalline structure consisting
of three phases arises. The magnetic properties of amorphous and nanocrystalline samples were studied with a vibrating-sample
magnetometer. The coercive force and saturation magnetization of amorphous samples were found to be 1 Oe and 130 emu/g, respectively.
The structure and chemical composition of the forming phases and their correlation with the magnetic properties of the samples
were determined.
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Translated from Fizika Tverdogo Tela, Vol. 46, No. 12, 2004, pp. 2158–2163.
Original Russian Text Copyright ? 2004 by Abrosimova, Aronin, Kabanov, Matveev, Molokanov, Rybchenko. |
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