Pressure and heating rate dependence of the crystallization temperature for amorphous (Fe65Ni35)75P16B6Al3 and Ti50Be40Zr10 |
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Authors: | M Cedergren G Bäckström |
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Institution: | Department of Physics, University of Umeå, S-901 87 Umeå, Sweden |
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Abstract: | The crystallization temperature, Tx, was determined at constant heating rate, , by monitoring the electrical resistance. Such experiments were carried out under pressures up to 2.5 GPa, and the resulting dTx/dP was 15.9 K GPa?1 for (Fe65Ni35)75P16B6Al3 and 8.7 K GPa?1, 8.1 K GPa?1 for the two crystallization processes in Ti50Be40Zr10. The activation energies of crystallization under atmospheric pressure were obtained from measurements of Tx at rates from 0.05 K min?1 ?55 K min?1, analysed by plotting ln(Tx2R?1) versus Tx?1. |
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